title stringlengths 10 172 | question_id int64 469 40.1M | question_body stringlengths 22 48.2k | question_score int64 -44 5.52k | question_date stringlengths 20 20 | answer_id int64 497 40.1M | answer_body stringlengths 18 33.9k | answer_score int64 -38 8.38k | answer_date stringlengths 20 20 | tags list |
|---|---|---|---|---|---|---|---|---|---|
os.walk without digging into directories below | 229,186 | <p>How do I limit <code>os.walk</code> to only return files in the directory I provide it?</p>
<pre><code>def _dir_list(self, dir_name, whitelist):
outputList = []
for root, dirs, files in os.walk(dir_name):
for f in files:
if os.path.splitext(f)[1] in whitelist:
outputList.... | 50 | 2008-10-23T10:03:59Z | 32,747,111 | <p>There is a catch when using listdir. The os.path.isdir(identifier) must be an absolute path. To pick subdirectories you do:</p>
<pre><code>for dirname in os.listdir(rootdir):
if os.path.isdir(os.path.join(rootdir, dirname)):
print("I got a subdirectory: %s" % dirname)
</code></pre>
<p>The alternative is t... | 0 | 2015-09-23T18:42:26Z | [
"python",
"file",
"os.walk"
] |
os.walk without digging into directories below | 229,186 | <p>How do I limit <code>os.walk</code> to only return files in the directory I provide it?</p>
<pre><code>def _dir_list(self, dir_name, whitelist):
outputList = []
for root, dirs, files in os.walk(dir_name):
for f in files:
if os.path.splitext(f)[1] in whitelist:
outputList.... | 50 | 2008-10-23T10:03:59Z | 36,358,596 | <p>In Python 3, I was able to do this:</p>
<pre><code>import os
dir = "/path/to/files/"
#List all files immediately under this folder:
print ( next( os.walk(dir) )[2] )
#List all folders immediately under this folder:
print ( next( os.walk(dir) )[1] )
</code></pre>
| 1 | 2016-04-01T14:13:41Z | [
"python",
"file",
"os.walk"
] |
os.walk without digging into directories below | 229,186 | <p>How do I limit <code>os.walk</code> to only return files in the directory I provide it?</p>
<pre><code>def _dir_list(self, dir_name, whitelist):
outputList = []
for root, dirs, files in os.walk(dir_name):
for f in files:
if os.path.splitext(f)[1] in whitelist:
outputList.... | 50 | 2008-10-23T10:03:59Z | 37,008,598 | <pre><code>for path, dirs, files in os.walk('.'):
print path, dirs, files
del dirs[:] # go only one level deep
</code></pre>
| 3 | 2016-05-03T15:43:13Z | [
"python",
"file",
"os.walk"
] |
os.walk without digging into directories below | 229,186 | <p>How do I limit <code>os.walk</code> to only return files in the directory I provide it?</p>
<pre><code>def _dir_list(self, dir_name, whitelist):
outputList = []
for root, dirs, files in os.walk(dir_name):
for f in files:
if os.path.splitext(f)[1] in whitelist:
outputList.... | 50 | 2008-10-23T10:03:59Z | 39,118,773 | <p>You can use this snippet</p>
<pre><code>for root, dirs, files in os.walk(directory):
if level > 0:
# do some stuff
else:
break
level-=1
</code></pre>
| 0 | 2016-08-24T08:56:51Z | [
"python",
"file",
"os.walk"
] |
Python Find Question | 229,352 | <p>I am using Python to extract the filename from a link using rfind like below:</p>
<pre><code>url = "http://www.google.com/test.php"
print url[url.rfind("/") +1 : ]
</code></pre>
<p>This works ok with links without a / at the end of them and returns "test.php". I have encountered links with / at the end like so "... | 2 | 2008-10-23T11:15:42Z | 229,386 | <p>You could use</p>
<pre><code>print url[url.rstrip("/").rfind("/") +1 : ]
</code></pre>
| -1 | 2008-10-23T11:28:54Z | [
"python",
"url"
] |
Python Find Question | 229,352 | <p>I am using Python to extract the filename from a link using rfind like below:</p>
<pre><code>url = "http://www.google.com/test.php"
print url[url.rfind("/") +1 : ]
</code></pre>
<p>This works ok with links without a / at the end of them and returns "test.php". I have encountered links with / at the end like so "... | 2 | 2008-10-23T11:15:42Z | 229,394 | <p>Filenames with a slash at the end are technically still path definitions and indicate that the index file is to be read. If you actually have one that' ends in <code>test.php/</code>, I would consider that an error. In any case, you can strip the / from the end before running your code as follows:</p>
<pre><code>... | 1 | 2008-10-23T11:31:12Z | [
"python",
"url"
] |
Python Find Question | 229,352 | <p>I am using Python to extract the filename from a link using rfind like below:</p>
<pre><code>url = "http://www.google.com/test.php"
print url[url.rfind("/") +1 : ]
</code></pre>
<p>This works ok with links without a / at the end of them and returns "test.php". I have encountered links with / at the end like so "... | 2 | 2008-10-23T11:15:42Z | 229,399 | <p>There is a library called <a href="http://www.python.org/doc/2.4/lib/module-urlparse.html" rel="nofollow">urlparse</a> that will parse the url for you, but still doesn't remove the / at the end so one of the above will be the best option</p>
| 0 | 2008-10-23T11:32:14Z | [
"python",
"url"
] |
Python Find Question | 229,352 | <p>I am using Python to extract the filename from a link using rfind like below:</p>
<pre><code>url = "http://www.google.com/test.php"
print url[url.rfind("/") +1 : ]
</code></pre>
<p>This works ok with links without a / at the end of them and returns "test.php". I have encountered links with / at the end like so "... | 2 | 2008-10-23T11:15:42Z | 229,401 | <p>Just removing the slash at the end won't work, as you can probably have a URL that looks like this:</p>
<pre><code>http://www.google.com/test.php?filepath=tests/hey.xml
</code></pre>
<p>...in which case you'll get back "hey.xml". Instead of manually checking for this, you can use <b>urlparse</b> to get rid of the ... | 9 | 2008-10-23T11:32:46Z | [
"python",
"url"
] |
Python Find Question | 229,352 | <p>I am using Python to extract the filename from a link using rfind like below:</p>
<pre><code>url = "http://www.google.com/test.php"
print url[url.rfind("/") +1 : ]
</code></pre>
<p>This works ok with links without a / at the end of them and returns "test.php". I have encountered links with / at the end like so "... | 2 | 2008-10-23T11:15:42Z | 229,417 | <p>Just for fun, you can use a Regexp:</p>
<pre><code>import re
print re.search('/([^/]+)/?$', url).group(1)
</code></pre>
| 0 | 2008-10-23T11:38:13Z | [
"python",
"url"
] |
Python Find Question | 229,352 | <p>I am using Python to extract the filename from a link using rfind like below:</p>
<pre><code>url = "http://www.google.com/test.php"
print url[url.rfind("/") +1 : ]
</code></pre>
<p>This works ok with links without a / at the end of them and returns "test.php". I have encountered links with / at the end like so "... | 2 | 2008-10-23T11:15:42Z | 229,430 | <p>Use [r]strip to remove trailing slashes:</p>
<pre><code>url.rstrip('/').rsplit('/', 1)[-1]
</code></pre>
<p>If a wider range of possible URLs is possible, including URLs with ?queries, #anchors or without a path, do it properly with urlparse:</p>
<pre><code>path= urlparse.urlparse(url).path
return path.rstrip('/'... | 4 | 2008-10-23T11:42:52Z | [
"python",
"url"
] |
Python Find Question | 229,352 | <p>I am using Python to extract the filename from a link using rfind like below:</p>
<pre><code>url = "http://www.google.com/test.php"
print url[url.rfind("/") +1 : ]
</code></pre>
<p>This works ok with links without a / at the end of them and returns "test.php". I have encountered links with / at the end like so "... | 2 | 2008-10-23T11:15:42Z | 229,650 | <pre><code>filter(None, url.split('/'))[-1]
</code></pre>
<p>(But urlparse is probably more readable, even if more verbose.)</p>
| -1 | 2008-10-23T13:10:34Z | [
"python",
"url"
] |
Python - Library Problems | 229,756 | <p>I'm relatively new to Python and am having problems programming with Scapy, the Python network manipulation tool. However, I can't tell if it's as much a Scapy problem as it is a being-a-Python-newbie problem. On the <a href="http://www.secdev.org/projects/scapy/build_your_own_tools.html">scapy site</a>, they give a... | 6 | 2008-10-23T13:41:31Z | 229,819 | <p>With the caveat from Federico Ramponi "You should use scapy as an interpreter by its own, not as a library", I want to answer the non-scapy-specific parts of the question.</p>
<p><strong>Q:</strong> when installing Python libraries, do I need to change my path or anything similar?</p>
<p><strong>A:</strong> I thin... | 6 | 2008-10-23T13:59:23Z | [
"python",
"networking",
"scapy"
] |
Python - Library Problems | 229,756 | <p>I'm relatively new to Python and am having problems programming with Scapy, the Python network manipulation tool. However, I can't tell if it's as much a Scapy problem as it is a being-a-Python-newbie problem. On the <a href="http://www.secdev.org/projects/scapy/build_your_own_tools.html">scapy site</a>, they give a... | 6 | 2008-10-23T13:41:31Z | 229,842 | <p>It tells you that it can't find sr1 in scapy. Not sure just how newbite you are, but the interpreter is always your friend. Fire up the interpreter (just type "python" on the commandline), and at the prompt (>>>) type (but don't type the >'s, they'll show up by themselves):</p>
<pre><code>>>> import scapy
... | 3 | 2008-10-23T14:05:46Z | [
"python",
"networking",
"scapy"
] |
Python - Library Problems | 229,756 | <p>I'm relatively new to Python and am having problems programming with Scapy, the Python network manipulation tool. However, I can't tell if it's as much a Scapy problem as it is a being-a-Python-newbie problem. On the <a href="http://www.secdev.org/projects/scapy/build_your_own_tools.html">scapy site</a>, they give a... | 6 | 2008-10-23T13:41:31Z | 230,333 | <p>The <a href="http://www.secdev.org/projects/scapy/index.html" rel="nofollow">scapy</a> package is a tool for network manipulation and monitoring. I'm curious as to what you're trying to do with it. It's rude to spy on your friends. :-)</p>
<pre><code>coventry@metta:~/src$ wget -q http://www.secdev.org/projects/sc... | 1 | 2008-10-23T16:04:30Z | [
"python",
"networking",
"scapy"
] |
Python - Library Problems | 229,756 | <p>I'm relatively new to Python and am having problems programming with Scapy, the Python network manipulation tool. However, I can't tell if it's as much a Scapy problem as it is a being-a-Python-newbie problem. On the <a href="http://www.secdev.org/projects/scapy/build_your_own_tools.html">scapy site</a>, they give a... | 6 | 2008-10-23T13:41:31Z | 942,244 | <p>I had the same problem, in the scapy v2.x use </p>
<pre><code> from scapy.all import *
</code></pre>
<p>instead the v1.x</p>
<pre><code> from scapy import *
</code></pre>
<p>as written <a href="http://www.secdev.org/projects/scapy/doc/installation.html" rel="nofollow">here</a></p>
<p>Enjoy it =)</p>
| 4 | 2009-06-02T22:30:00Z | [
"python",
"networking",
"scapy"
] |
Any good "contact us" recipes for Cherrypy? | 230,310 | <p>I'm looking to implement a "Contact Us" form with Cherrypy and was wondering: Is there a good recipe (or a BSD licensed set of code) that I could use instead of reinventing the wheel?</p>
<p>Ideally, this would be Cherrpy 3.1 compatible.</p>
| 3 | 2008-10-23T15:59:07Z | 232,565 | <p>Well, I had to look into a solution. This works (ugly, and w/o Javascript validation) -- using the smtplib lib. Also, note that I stole Jeff's captcha for this example. Anyone using this will need to change it. </p>
<p><strong>EDIT:</strong> I added validation.</p>
<pre><code>#!/usr/local/bin/python2.4
import... | 3 | 2008-10-24T05:31:27Z | [
"python",
"cherrypy",
"contactus"
] |
Any good "contact us" recipes for Cherrypy? | 230,310 | <p>I'm looking to implement a "Contact Us" form with Cherrypy and was wondering: Is there a good recipe (or a BSD licensed set of code) that I could use instead of reinventing the wheel?</p>
<p>Ideally, this would be Cherrpy 3.1 compatible.</p>
| 3 | 2008-10-23T15:59:07Z | 13,885,542 | <p>I realize the question is four years old, but for those still searching:</p>
<p>I recommend using the python library <a href="https://github.com/marrow/marrow.mailer" rel="nofollow">Marrow Mailer</a>. It abstracts the whole smtp vs sendmail, etc., and also provides excellent server-side validation. The code is unde... | 3 | 2012-12-14T20:07:20Z | [
"python",
"cherrypy",
"contactus"
] |
How to flush output of Python print? | 230,751 | <p>How do I force Python's print function to output to the screen?</p>
| 605 | 2008-10-23T17:59:39Z | 230,774 | <pre><code>import sys
sys.stdout.flush()
</code></pre>
<p>Print by default prints to <code>sys.stdout</code>.</p>
<p>References:</p>
<ul>
<li><a href="http://docs.python.org/reference/simple_stmts.html#the-print-statement">http://docs.python.org/reference/simple_stmts.html#the-print-statement</a></li>
<li><a href="h... | 765 | 2008-10-23T18:04:59Z | [
"python",
"printing",
"flush"
] |
How to flush output of Python print? | 230,751 | <p>How do I force Python's print function to output to the screen?</p>
| 605 | 2008-10-23T17:59:39Z | 230,780 | <p>Running <code>python -h</code>, I see a <em>command line option</em>:</p>
<blockquote>
<p>-u : unbuffered binary stdout and stderr; also PYTHONUNBUFFERED=x
see man page for details on internal buffering relating to '-u'</p>
</blockquote>
<p>Here is the <a href="http://docs.python.org/using/cmdline... | 229 | 2008-10-23T18:06:49Z | [
"python",
"printing",
"flush"
] |
How to flush output of Python print? | 230,751 | <p>How do I force Python's print function to output to the screen?</p>
| 605 | 2008-10-23T17:59:39Z | 231,216 | <p>Using the <code>-u</code> command-line switch works, but it is a little bit clumsy. It would mean that the program would potentially behave incorrectly if the user invoked the script without the <code>-u</code> option. I usually use a custom <code>stdout</code>, like this:</p>
<pre><code>class flushfile(file):
d... | 26 | 2008-10-23T19:54:26Z | [
"python",
"printing",
"flush"
] |
How to flush output of Python print? | 230,751 | <p>How do I force Python's print function to output to the screen?</p>
| 605 | 2008-10-23T17:59:39Z | 288,536 | <p>Dan's idea doesn't quite work:</p>
<pre><code>#!/usr/bin/env python
class flushfile(file):
def __init__(self, f):
self.f = f
def write(self, x):
self.f.write(x)
self.f.flush()
import sys
sys.stdout = flushfile(sys.stdout)
print "foo"
</code></pre>
<p>The result:</p>
<pre><code>Tr... | 12 | 2008-11-13T22:15:25Z | [
"python",
"printing",
"flush"
] |
How to flush output of Python print? | 230,751 | <p>How do I force Python's print function to output to the screen?</p>
| 605 | 2008-10-23T17:59:39Z | 741,601 | <p>Why not try using an unbuffered file?</p>
<pre><code>f = open('xyz.log', 'a', 0)
</code></pre>
<p>OR</p>
<pre><code>sys.stdout = open('out.log', 'a', 0)
</code></pre>
| 17 | 2009-04-12T10:57:58Z | [
"python",
"printing",
"flush"
] |
How to flush output of Python print? | 230,751 | <p>How do I force Python's print function to output to the screen?</p>
| 605 | 2008-10-23T17:59:39Z | 5,020,567 | <p>Loved Dan's solution! For python3 do:</p>
<pre><code>import io,sys
class flushfile:
def __init__(self, f):
self.f = f
def write(self, x):
self.f.write(x)
self.f.flush()
sys.stdout = flushfile(sys.stdout)
</code></pre>
| 5 | 2011-02-16T18:29:28Z | [
"python",
"printing",
"flush"
] |
How to flush output of Python print? | 230,751 | <p>How do I force Python's print function to output to the screen?</p>
| 605 | 2008-10-23T17:59:39Z | 6,055,744 | <p>Here is my version, which provides writelines() and fileno(), too:</p>
<pre><code>class FlushFile(object):
def __init__(self, fd):
self.fd = fd
def write(self, x):
ret = self.fd.write(x)
self.fd.flush()
return ret
def writelines(self, lines):
ret = self.writelin... | 5 | 2011-05-19T08:20:36Z | [
"python",
"printing",
"flush"
] |
How to flush output of Python print? | 230,751 | <p>How do I force Python's print function to output to the screen?</p>
| 605 | 2008-10-23T17:59:39Z | 8,471,288 | <pre><code>import sys
print 'This will be output immediately.'
sys.stdout.flush()
</code></pre>
| 11 | 2011-12-12T07:46:41Z | [
"python",
"printing",
"flush"
] |
How to flush output of Python print? | 230,751 | <p>How do I force Python's print function to output to the screen?</p>
| 605 | 2008-10-23T17:59:39Z | 9,462,099 | <p>Also as suggested in <a href="http://algorithmicallyrandom.blogspot.com/2009/10/python-tips-and-tricks-flushing-stdout.html">this blog</a> one can reopen <code>sys.stdout</code> in unbuffered mode:</p>
<pre><code>sys.stdout = os.fdopen(sys.stdout.fileno(), 'w', 0)
</code></pre>
<p>Each <code>stdout.write</code> an... | 55 | 2012-02-27T08:38:27Z | [
"python",
"printing",
"flush"
] |
How to flush output of Python print? | 230,751 | <p>How do I force Python's print function to output to the screen?</p>
| 605 | 2008-10-23T17:59:39Z | 23,142,556 | <p>Since Python 3.3, you can force the normal <code>print()</code> function to flush without the need to use <code>sys.stdout.flush()</code>; just set the "flush" keyword argument to true. From <a href="https://docs.python.org/3.3/library/functions.html#print">the documentation</a>:</p>
<blockquote>
<p><strong>prin... | 143 | 2014-04-17T20:10:31Z | [
"python",
"printing",
"flush"
] |
How to flush output of Python print? | 230,751 | <p>How do I force Python's print function to output to the screen?</p>
| 605 | 2008-10-23T17:59:39Z | 30,682,091 | <p>I did it like this in Python 3.4:</p>
<pre><code>'''To write to screen in real-time'''
message = lambda x: print(x, flush=True, end="")
message('I am flushing out now...')
</code></pre>
| 3 | 2015-06-06T11:10:54Z | [
"python",
"printing",
"flush"
] |
How to flush output of Python print? | 230,751 | <p>How do I force Python's print function to output to the screen?</p>
| 605 | 2008-10-23T17:59:39Z | 33,265,549 | <pre><code>print("Foo", flush=True)
</code></pre>
<p>Like that</p>
| 8 | 2015-10-21T17:23:32Z | [
"python",
"printing",
"flush"
] |
How to flush output of Python print? | 230,751 | <p>How do I force Python's print function to output to the screen?</p>
| 605 | 2008-10-23T17:59:39Z | 35,467,658 | <blockquote>
<h1>How to flush output of Python print?</h1>
</blockquote>
<h2>Python 3.3+</h2>
<p>Using Python 3.3 or higher, you can just provide <code>flush=True</code> as a keyword argument to the <code>print</code> function: </p>
<pre><code>print('foo', flush=True)
</code></pre>
<h2>Python 2 (or < 3.3)</h2... | 11 | 2016-02-17T21:01:03Z | [
"python",
"printing",
"flush"
] |
How to flush output of Python print? | 230,751 | <p>How do I force Python's print function to output to the screen?</p>
| 605 | 2008-10-23T17:59:39Z | 37,242,598 | <p>In Python 3 you can overwrite print function with default set to <code>flush = True</code> </p>
<pre class="lang-py prettyprint-override"><code>def print(*objects, sep=' ', end='\n', file=sys.stdout, flush=True):
__builtins__.print(*objects, sep=sep, end=end, file=file, flush=flush)
</code></pre>
| 1 | 2016-05-15T19:13:34Z | [
"python",
"printing",
"flush"
] |
Make python enter password when running a csh script | 230,845 | <p>I'm writing a python script that executes a csh script in Solaris 10. The csh script prompts the user for the root password (which I know) but I'm not sure how to make the python script answer the prompt with the password. Is this possible? Here is what I'm using to execute the csh script:</p>
<pre><code>import com... | 5 | 2008-10-23T18:22:33Z | 230,855 | <p>Should be able to pass it as a parameter. something like:</p>
<pre><code>commands.getoutput('server stop -p password')
</code></pre>
| 0 | 2008-10-23T18:24:49Z | [
"python",
"scripting",
"passwords",
"root",
"csh"
] |
Make python enter password when running a csh script | 230,845 | <p>I'm writing a python script that executes a csh script in Solaris 10. The csh script prompts the user for the root password (which I know) but I'm not sure how to make the python script answer the prompt with the password. Is this possible? Here is what I'm using to execute the csh script:</p>
<pre><code>import com... | 5 | 2008-10-23T18:22:33Z | 230,862 | <p>Use <a href="http://www.python.org/doc/2.5.2/lib/module-subprocess.html" rel="nofollow">subprocess</a>. Call Popen() to create your process and use communicate() to send it text. Sorry, forgot to include the PIPE..</p>
<pre><code>from subprocess import Popen, PIPE
proc = Popen(['server', 'stop'], stdin=PIPE)
pr... | 3 | 2008-10-23T18:25:33Z | [
"python",
"scripting",
"passwords",
"root",
"csh"
] |
Make python enter password when running a csh script | 230,845 | <p>I'm writing a python script that executes a csh script in Solaris 10. The csh script prompts the user for the root password (which I know) but I'm not sure how to make the python script answer the prompt with the password. Is this possible? Here is what I'm using to execute the csh script:</p>
<pre><code>import com... | 5 | 2008-10-23T18:22:33Z | 230,982 | <p>This seems to work better:</p>
<pre><code>import popen2
(stdout, stdin) = popen2.popen2('server stop')
stdin.write("password")
</code></pre>
<p>But it's not 100% yet. Even though "password" is the correct password I'm still getting su: Sorry back from the csh script when it's trying to su to root.</p>
| 0 | 2008-10-23T18:57:21Z | [
"python",
"scripting",
"passwords",
"root",
"csh"
] |
Make python enter password when running a csh script | 230,845 | <p>I'm writing a python script that executes a csh script in Solaris 10. The csh script prompts the user for the root password (which I know) but I'm not sure how to make the python script answer the prompt with the password. Is this possible? Here is what I'm using to execute the csh script:</p>
<pre><code>import com... | 5 | 2008-10-23T18:22:33Z | 230,986 | <p>Have a look at the <a href="http://www.noah.org/wiki/Pexpect">pexpect</a> module. It is designed to deal with interactive programs, which seems to be your case.</p>
<p>Oh, and remember that hard-encoding root's password in a shell or python script is potentially a security hole :D</p>
| 7 | 2008-10-23T18:58:34Z | [
"python",
"scripting",
"passwords",
"root",
"csh"
] |
Make python enter password when running a csh script | 230,845 | <p>I'm writing a python script that executes a csh script in Solaris 10. The csh script prompts the user for the root password (which I know) but I'm not sure how to make the python script answer the prompt with the password. Is this possible? Here is what I'm using to execute the csh script:</p>
<pre><code>import com... | 5 | 2008-10-23T18:22:33Z | 234,301 | <p>To avoid having to answer the Password question in the python script I'm just going to run the script as root. This question is still unanswered but I guess I'll just do it this way for now.</p>
| 0 | 2008-10-24T16:39:21Z | [
"python",
"scripting",
"passwords",
"root",
"csh"
] |
Make python enter password when running a csh script | 230,845 | <p>I'm writing a python script that executes a csh script in Solaris 10. The csh script prompts the user for the root password (which I know) but I'm not sure how to make the python script answer the prompt with the password. Is this possible? Here is what I'm using to execute the csh script:</p>
<pre><code>import com... | 5 | 2008-10-23T18:22:33Z | 321,950 | <pre><code>import pexpect
child = pexpect.spawn('server stop')
child.expect_exact('Password:')
child.sendline('password')
print "Stopping the servers..."
index = child.expect_exact(['Server processes successfully stopped.', 'Server is not running...'], 60)
child.expect(pexpect.EOF)
</code></pre>
<p>Did the trick! P... | 1 | 2008-11-26T19:58:36Z | [
"python",
"scripting",
"passwords",
"root",
"csh"
] |
Make python enter password when running a csh script | 230,845 | <p>I'm writing a python script that executes a csh script in Solaris 10. The csh script prompts the user for the root password (which I know) but I'm not sure how to make the python script answer the prompt with the password. Is this possible? Here is what I'm using to execute the csh script:</p>
<pre><code>import com... | 5 | 2008-10-23T18:22:33Z | 809,168 | <p>Add <code>input=</code> in <code>proc.communicate()</code> make it run, for guys who like to use standard lib.</p>
<pre><code>from subprocess import Popen, PIPE
proc = Popen(['server', 'stop'], stdin=PIPE)
proc.communicate(input='password')
</code></pre>
| 0 | 2009-04-30T21:24:48Z | [
"python",
"scripting",
"passwords",
"root",
"csh"
] |
Given a list of variable names in Python, how do I a create a dictionary with the variable names as keys (to the variables' values)? | 230,896 | <p>I have a list of variable names, like this:</p>
<pre><code>['foo', 'bar', 'baz']
</code></pre>
<p>(I originally asked how I convert a list of variables. See Greg Hewgill's answer below.)</p>
<p>How do I convert this to a dictionary where the keys are the variable names (as strings) and the values are the values ... | 13 | 2008-10-23T18:33:51Z | 230,907 | <p>Your original list <code>[foo, bar, baz]</code> doesn't contain the variable <em>names</em>, it just contains elements that refer to the same <em>values</em> as the variables you listed. This is because you can have two different variable names that refer to the same value.</p>
<p>So, the list by itself doesn't con... | 4 | 2008-10-23T18:35:35Z | [
"python",
"list",
"dictionary"
] |
Given a list of variable names in Python, how do I a create a dictionary with the variable names as keys (to the variables' values)? | 230,896 | <p>I have a list of variable names, like this:</p>
<pre><code>['foo', 'bar', 'baz']
</code></pre>
<p>(I originally asked how I convert a list of variables. See Greg Hewgill's answer below.)</p>
<p>How do I convert this to a dictionary where the keys are the variable names (as strings) and the values are the values ... | 13 | 2008-10-23T18:33:51Z | 230,955 | <p>You can use list or generator comprehensions to build a list of key, value tuples used to directly instantiate a dict. The best way is below:</p>
<pre><code>dict((name, eval(name)) for name in list_of_variable_names)
</code></pre>
<p>In addition, if you know, for example, that the variables exist in the local sym... | 3 | 2008-10-23T18:49:48Z | [
"python",
"list",
"dictionary"
] |
Given a list of variable names in Python, how do I a create a dictionary with the variable names as keys (to the variables' values)? | 230,896 | <p>I have a list of variable names, like this:</p>
<pre><code>['foo', 'bar', 'baz']
</code></pre>
<p>(I originally asked how I convert a list of variables. See Greg Hewgill's answer below.)</p>
<p>How do I convert this to a dictionary where the keys are the variable names (as strings) and the values are the values ... | 13 | 2008-10-23T18:33:51Z | 230,976 | <p>Not efficient, but without invoking <code>eval</code>:</p>
<pre><code>dict((k,v) for (k,v) in globals().iteritems() if k in list_of_variable_names)
</code></pre>
<p>or</p>
<pre><code>dict((k,v) for (k,v) in vars().iteritems() if k in list_of_variable_names)
</code></pre>
<p>depending on what you want.</p>
| 1 | 2008-10-23T18:54:33Z | [
"python",
"list",
"dictionary"
] |
Given a list of variable names in Python, how do I a create a dictionary with the variable names as keys (to the variables' values)? | 230,896 | <p>I have a list of variable names, like this:</p>
<pre><code>['foo', 'bar', 'baz']
</code></pre>
<p>(I originally asked how I convert a list of variables. See Greg Hewgill's answer below.)</p>
<p>How do I convert this to a dictionary where the keys are the variable names (as strings) and the values are the values ... | 13 | 2008-10-23T18:33:51Z | 231,368 | <p>Forget filtering <code>locals()</code>! The dictionary you give to the formatting string is allowed to contain unused keys:</p>
<pre><code>>>> name = 'foo'
>>> zip = 123
>>> unused = 'whoops!'
>>> locals()
{'name': 'foo', 'zip': 123, ... 'unused': 'whoops!', ...}
>>> '%(... | 14 | 2008-10-23T20:29:33Z | [
"python",
"list",
"dictionary"
] |
What does the "yield" keyword do? | 231,767 | <p>What is the use of the <code>yield</code> keyword in Python? What does it do?</p>
<p>For example, I'm trying to understand this code<sup><strong>1</strong></sup>:</p>
<pre><code>def _get_child_candidates(self, distance, min_dist, max_dist):
if self._leftchild and distance - max_dist < self._median:
... | 5,524 | 2008-10-23T22:21:11Z | 231,778 | <p><code>yield</code> is just like <code>return</code> - it returns whatever you tell it to. The only difference is that the next time you call the function, execution starts from the last call to the <code>yield</code> statement.</p>
<p>In the case of your code, the function <code>get_child_candidates</code> is acti... | 141 | 2008-10-23T22:24:03Z | [
"python",
"iterator",
"generator",
"yield",
"coroutine"
] |
What does the "yield" keyword do? | 231,767 | <p>What is the use of the <code>yield</code> keyword in Python? What does it do?</p>
<p>For example, I'm trying to understand this code<sup><strong>1</strong></sup>:</p>
<pre><code>def _get_child_candidates(self, distance, min_dist, max_dist):
if self._leftchild and distance - max_dist < self._median:
... | 5,524 | 2008-10-23T22:21:11Z | 231,788 | <p>It's returning a generator. I'm not particularly familiar with Python, but I believe it's the same kind of thing as <a href="http://csharpindepth.com/Articles/Chapter11/StreamingAndIterators.aspx">C#'s iterator blocks</a> if you're familiar with those.</p>
<p>There's an <a href="http://www.ibm.com/developerworks/li... | 78 | 2008-10-23T22:26:06Z | [
"python",
"iterator",
"generator",
"yield",
"coroutine"
] |
What does the "yield" keyword do? | 231,767 | <p>What is the use of the <code>yield</code> keyword in Python? What does it do?</p>
<p>For example, I'm trying to understand this code<sup><strong>1</strong></sup>:</p>
<pre><code>def _get_child_candidates(self, distance, min_dist, max_dist):
if self._leftchild and distance - max_dist < self._median:
... | 5,524 | 2008-10-23T22:21:11Z | 231,801 | <p>Think of it this way:</p>
<p>An iterator is just a fancy sounding term for an object that has a next() method. So a yield-ed function ends up being something like this:</p>
<p>Original version:</p>
<pre><code>def some_function():
for i in xrange(4):
yield i
for i in some_function():
print i
</co... | 236 | 2008-10-23T22:28:41Z | [
"python",
"iterator",
"generator",
"yield",
"coroutine"
] |
What does the "yield" keyword do? | 231,767 | <p>What is the use of the <code>yield</code> keyword in Python? What does it do?</p>
<p>For example, I'm trying to understand this code<sup><strong>1</strong></sup>:</p>
<pre><code>def _get_child_candidates(self, distance, min_dist, max_dist):
if self._leftchild and distance - max_dist < self._median:
... | 5,524 | 2008-10-23T22:21:11Z | 231,855 | <p>To understand what <code>yield</code> does, you must understand what <em>generators</em> are. And before generators come <em>iterables</em>.</p>
<h2>Iterables</h2>
<p>When you create a list, you can read its items one by one. Reading its items one by one is called iteration:</p>
<pre><code>>>> mylist = [... | 8,384 | 2008-10-23T22:48:44Z | [
"python",
"iterator",
"generator",
"yield",
"coroutine"
] |
What does the "yield" keyword do? | 231,767 | <p>What is the use of the <code>yield</code> keyword in Python? What does it do?</p>
<p>For example, I'm trying to understand this code<sup><strong>1</strong></sup>:</p>
<pre><code>def _get_child_candidates(self, distance, min_dist, max_dist):
if self._leftchild and distance - max_dist < self._median:
... | 5,524 | 2008-10-23T22:21:11Z | 232,111 | <p>An example in plain language. I will provide a correspondence between high-level human concepts to low-level python concepts.</p>
<p>I want to operate on a sequence of numbers, but I don't want to bother my self with the creation of that sequence, I want only to focus on the operation I want to do. So, I do the fol... | 72 | 2008-10-24T00:36:05Z | [
"python",
"iterator",
"generator",
"yield",
"coroutine"
] |
What does the "yield" keyword do? | 231,767 | <p>What is the use of the <code>yield</code> keyword in Python? What does it do?</p>
<p>For example, I'm trying to understand this code<sup><strong>1</strong></sup>:</p>
<pre><code>def _get_child_candidates(self, distance, min_dist, max_dist):
if self._leftchild and distance - max_dist < self._median:
... | 5,524 | 2008-10-23T22:21:11Z | 232,791 | <p>I feel like I post a link to this presentation every day: David M. Beazly's <a href="http://www.dabeaz.com/generators/">Generator Tricks for Systems Programmers</a>. If you're a Python programmer and you're not extremely familiar with generators, you should read this. It's a very clear explanation of what generat... | 160 | 2008-10-24T07:59:15Z | [
"python",
"iterator",
"generator",
"yield",
"coroutine"
] |
What does the "yield" keyword do? | 231,767 | <p>What is the use of the <code>yield</code> keyword in Python? What does it do?</p>
<p>For example, I'm trying to understand this code<sup><strong>1</strong></sup>:</p>
<pre><code>def _get_child_candidates(self, distance, min_dist, max_dist):
if self._leftchild and distance - max_dist < self._median:
... | 5,524 | 2008-10-23T22:21:11Z | 232,853 | <p>There's one extra thing to mention: a function that yields doesn't actually have to terminate. I've written code like this:</p>
<pre><code>def fib():
last, cur = 0, 1
while True:
yield cur
last, cur = cur, last + cur
</code></pre>
<p>Then I can use it in other code like this:</p>
<pre><co... | 121 | 2008-10-24T08:44:08Z | [
"python",
"iterator",
"generator",
"yield",
"coroutine"
] |
What does the "yield" keyword do? | 231,767 | <p>What is the use of the <code>yield</code> keyword in Python? What does it do?</p>
<p>For example, I'm trying to understand this code<sup><strong>1</strong></sup>:</p>
<pre><code>def _get_child_candidates(self, distance, min_dist, max_dist):
if self._leftchild and distance - max_dist < self._median:
... | 5,524 | 2008-10-23T22:21:11Z | 237,028 | <h2>Shortcut to <a href="http://en.wikipedia.org/wiki/Grok">Grokking</a> <code>yield</code></h2>
<p>When you see a function with <code>yield</code> statements, apply this easy trick to understand what will happen:</p>
<ol>
<li>Insert a line <code>result = []</code> at the start of the function.</li>
<li>Replace each ... | 1,095 | 2008-10-25T21:22:30Z | [
"python",
"iterator",
"generator",
"yield",
"coroutine"
] |
What does the "yield" keyword do? | 231,767 | <p>What is the use of the <code>yield</code> keyword in Python? What does it do?</p>
<p>For example, I'm trying to understand this code<sup><strong>1</strong></sup>:</p>
<pre><code>def _get_child_candidates(self, distance, min_dist, max_dist):
if self._leftchild and distance - max_dist < self._median:
... | 5,524 | 2008-10-23T22:21:11Z | 6,400,990 | <p>The <code>yield</code> keyword is reduced to two simple facts:</p>
<ol>
<li>If the compiler detects the <code>yield</code> keyword <em>anywhere</em> inside a function, that function no longer returns via the <code>return</code> statement. <strong><em>Instead</em></strong>, it <strong>immediately</strong> returns a ... | 215 | 2011-06-19T06:33:58Z | [
"python",
"iterator",
"generator",
"yield",
"coroutine"
] |
What does the "yield" keyword do? | 231,767 | <p>What is the use of the <code>yield</code> keyword in Python? What does it do?</p>
<p>For example, I'm trying to understand this code<sup><strong>1</strong></sup>:</p>
<pre><code>def _get_child_candidates(self, distance, min_dist, max_dist):
if self._leftchild and distance - max_dist < self._median:
... | 5,524 | 2008-10-23T22:21:11Z | 12,716,515 | <p>Here are some <a href="https://github.com/dustingetz/sandbox/blob/master/etc/lazy.py">Python examples of how to actually implement generators</a> as if Python did not provide syntactic sugar for them (or in a language without native syntax, like <a href="http://en.wikipedia.org/wiki/JavaScript">JavaScript</a>). Snip... | 49 | 2012-10-03T20:38:16Z | [
"python",
"iterator",
"generator",
"yield",
"coroutine"
] |
What does the "yield" keyword do? | 231,767 | <p>What is the use of the <code>yield</code> keyword in Python? What does it do?</p>
<p>For example, I'm trying to understand this code<sup><strong>1</strong></sup>:</p>
<pre><code>def _get_child_candidates(self, distance, min_dist, max_dist):
if self._leftchild and distance - max_dist < self._median:
... | 5,524 | 2008-10-23T22:21:11Z | 14,352,675 | <p>Yield gives you a generator. </p>
<pre><code>def get_odd_numbers(i):
return range(1, i, 2)
def yield_odd_numbers(i):
for x in range(1, i, 2):
yield x
foo = get_odd_numbers(10)
bar = yield_odd_numbers(10)
foo
[1, 3, 5, 7, 9]
bar
<generator object yield_odd_numbers at 0x1029c6f50>
bar.next()
1
ba... | 88 | 2013-01-16T06:42:09Z | [
"python",
"iterator",
"generator",
"yield",
"coroutine"
] |
What does the "yield" keyword do? | 231,767 | <p>What is the use of the <code>yield</code> keyword in Python? What does it do?</p>
<p>For example, I'm trying to understand this code<sup><strong>1</strong></sup>:</p>
<pre><code>def _get_child_candidates(self, distance, min_dist, max_dist):
if self._leftchild and distance - max_dist < self._median:
... | 5,524 | 2008-10-23T22:21:11Z | 14,404,292 | <p>For those who prefer a minimal working example, meditate on this interactive <a href="http://en.wikipedia.org/wiki/Python_%28programming_language%29">Python</a> session:</p>
<pre><code>>>> def f():
... yield 1
... yield 2
... yield 3
...
>>> g = f()
>>> for i in g:
... print i
..... | 95 | 2013-01-18T17:25:17Z | [
"python",
"iterator",
"generator",
"yield",
"coroutine"
] |
What does the "yield" keyword do? | 231,767 | <p>What is the use of the <code>yield</code> keyword in Python? What does it do?</p>
<p>For example, I'm trying to understand this code<sup><strong>1</strong></sup>:</p>
<pre><code>def _get_child_candidates(self, distance, min_dist, max_dist):
if self._leftchild and distance - max_dist < self._median:
... | 5,524 | 2008-10-23T22:21:11Z | 14,554,322 | <p>I was going to post "read page 19 of Beazley's 'Python: Essential Reference' for a quick description of generators", but so many others have posted good descriptions already.</p>
<p>Also, note that <code>yield</code> can be used in coroutines as the dual of their use in generator functions. Although it isn't the s... | 51 | 2013-01-28T01:37:10Z | [
"python",
"iterator",
"generator",
"yield",
"coroutine"
] |
What does the "yield" keyword do? | 231,767 | <p>What is the use of the <code>yield</code> keyword in Python? What does it do?</p>
<p>For example, I'm trying to understand this code<sup><strong>1</strong></sup>:</p>
<pre><code>def _get_child_candidates(self, distance, min_dist, max_dist):
if self._leftchild and distance - max_dist < self._median:
... | 5,524 | 2008-10-23T22:21:11Z | 15,814,755 | <p>There is one type of answer that I don't feel has been given yet, among the many great answers that describe how to use generators. Here is the PL theory answer:</p>
<p>The <code>yield</code> statement in python returns a generator. A generator in python is a function that returns <i>continuations</i> (and specif... | 81 | 2013-04-04T14:56:19Z | [
"python",
"iterator",
"generator",
"yield",
"coroutine"
] |
What does the "yield" keyword do? | 231,767 | <p>What is the use of the <code>yield</code> keyword in Python? What does it do?</p>
<p>For example, I'm trying to understand this code<sup><strong>1</strong></sup>:</p>
<pre><code>def _get_child_candidates(self, distance, min_dist, max_dist):
if self._leftchild and distance - max_dist < self._median:
... | 5,524 | 2008-10-23T22:21:11Z | 17,113,322 | <p>Here is a mental image of what <code>yield</code> does.</p>
<p>I like to think of a thread as having a stack (even if it's not implemented that way).</p>
<p>When a normal function is called, it puts its local variables on the stack, does some computation, returns and clears the stack. The values of its local varia... | 34 | 2013-06-14T16:36:59Z | [
"python",
"iterator",
"generator",
"yield",
"coroutine"
] |
What does the "yield" keyword do? | 231,767 | <p>What is the use of the <code>yield</code> keyword in Python? What does it do?</p>
<p>For example, I'm trying to understand this code<sup><strong>1</strong></sup>:</p>
<pre><code>def _get_child_candidates(self, distance, min_dist, max_dist):
if self._leftchild and distance - max_dist < self._median:
... | 5,524 | 2008-10-23T22:21:11Z | 18,365,578 | <p>From a programming viewpoint, the iterators are implemented as <strong>thunks</strong> </p>
<p><a href="http://en.wikipedia.org/wiki/Thunk_(functional_programming)">http://en.wikipedia.org/wiki/Thunk_(functional_programming)</a></p>
<p>To implement iterators/generators/etc as thunks (also called anonymous function... | 33 | 2013-08-21T19:01:25Z | [
"python",
"iterator",
"generator",
"yield",
"coroutine"
] |
What does the "yield" keyword do? | 231,767 | <p>What is the use of the <code>yield</code> keyword in Python? What does it do?</p>
<p>For example, I'm trying to understand this code<sup><strong>1</strong></sup>:</p>
<pre><code>def _get_child_candidates(self, distance, min_dist, max_dist):
if self._leftchild and distance - max_dist < self._median:
... | 5,524 | 2008-10-23T22:21:11Z | 20,704,301 | <p>Here is a simple example:</p>
<pre><code>def isPrimeNumber(n):
print "isPrimeNumber({}) call".format(n)
if n==1:
return False
for x in range(2,n):
if n % x == 0:
return False
return True
def primes (n=1):
while(True):
print "loop step ---------------- {}".f... | 41 | 2013-12-20T13:07:18Z | [
"python",
"iterator",
"generator",
"yield",
"coroutine"
] |
What does the "yield" keyword do? | 231,767 | <p>What is the use of the <code>yield</code> keyword in Python? What does it do?</p>
<p>For example, I'm trying to understand this code<sup><strong>1</strong></sup>:</p>
<pre><code>def _get_child_candidates(self, distance, min_dist, max_dist):
if self._leftchild and distance - max_dist < self._median:
... | 5,524 | 2008-10-23T22:21:11Z | 21,541,902 | <p>While a lot of answers show why you'd use a <code>yield</code> to create a generator, there are more uses for <code>yield</code>. It's quite easy to make a coroutine, which enables the passing of information between two blocks of code. I won't repeat any of the fine examples that have already been given about usin... | 64 | 2014-02-04T02:27:35Z | [
"python",
"iterator",
"generator",
"yield",
"coroutine"
] |
What does the "yield" keyword do? | 231,767 | <p>What is the use of the <code>yield</code> keyword in Python? What does it do?</p>
<p>For example, I'm trying to understand this code<sup><strong>1</strong></sup>:</p>
<pre><code>def _get_child_candidates(self, distance, min_dist, max_dist):
if self._leftchild and distance - max_dist < self._median:
... | 5,524 | 2008-10-23T22:21:11Z | 24,944,096 | <p>There is another <code>yield</code> use and meaning (since python 3.3):</p>
<pre><code>yield from <expr>
</code></pre>
<p><a href="http://www.python.org/dev/peps/pep-0380/">http://www.python.org/dev/peps/pep-0380/</a></p>
<blockquote>
<p>A syntax is proposed for a generator to delegate part of its operati... | 49 | 2014-07-24T21:15:29Z | [
"python",
"iterator",
"generator",
"yield",
"coroutine"
] |
What does the "yield" keyword do? | 231,767 | <p>What is the use of the <code>yield</code> keyword in Python? What does it do?</p>
<p>For example, I'm trying to understand this code<sup><strong>1</strong></sup>:</p>
<pre><code>def _get_child_candidates(self, distance, min_dist, max_dist):
if self._leftchild and distance - max_dist < self._median:
... | 5,524 | 2008-10-23T22:21:11Z | 30,341,713 | <p><code>yield</code> is like a return element for a function. The difference is, that the <code>yield</code> element turns a function into a generator. A generator behaves just like a function until something is 'yielded'. The generator stops until it is next called, and continues from exactly the same point as it sta... | 24 | 2015-05-20T06:19:32Z | [
"python",
"iterator",
"generator",
"yield",
"coroutine"
] |
What does the "yield" keyword do? | 231,767 | <p>What is the use of the <code>yield</code> keyword in Python? What does it do?</p>
<p>For example, I'm trying to understand this code<sup><strong>1</strong></sup>:</p>
<pre><code>def _get_child_candidates(self, distance, min_dist, max_dist):
if self._leftchild and distance - max_dist < self._median:
... | 5,524 | 2008-10-23T22:21:11Z | 31,042,491 | <blockquote>
<p><strong>What does the <code>yield</code> keyword do in Python?</strong></p>
</blockquote>
<h1>Answer Outline/Summary</h1>
<ul>
<li>A function with <a href="https://docs.python.org/reference/expressions.html#yieldexpr"><strong><code>yield</code></strong></a>, when called, <strong>returns a <a href="h... | 113 | 2015-06-25T06:11:11Z | [
"python",
"iterator",
"generator",
"yield",
"coroutine"
] |
What does the "yield" keyword do? | 231,767 | <p>What is the use of the <code>yield</code> keyword in Python? What does it do?</p>
<p>For example, I'm trying to understand this code<sup><strong>1</strong></sup>:</p>
<pre><code>def _get_child_candidates(self, distance, min_dist, max_dist):
if self._leftchild and distance - max_dist < self._median:
... | 5,524 | 2008-10-23T22:21:11Z | 31,692,481 | <p>Like every answer suggests, <code>yield</code> is used for creating a sequence generator. It's used for generating some sequence dynamically. Eg. While reading a file line by line on a network, you can use the <code>yield</code> function as follows:</p>
<pre><code>def getNextLines():
while con.isOpen():
y... | 24 | 2015-07-29T06:11:25Z | [
"python",
"iterator",
"generator",
"yield",
"coroutine"
] |
What does the "yield" keyword do? | 231,767 | <p>What is the use of the <code>yield</code> keyword in Python? What does it do?</p>
<p>For example, I'm trying to understand this code<sup><strong>1</strong></sup>:</p>
<pre><code>def _get_child_candidates(self, distance, min_dist, max_dist):
if self._leftchild and distance - max_dist < self._median:
... | 5,524 | 2008-10-23T22:21:11Z | 32,331,953 | <p><strong>Yield is an Object</strong></p>
<p>A <code>return</code> in a function will return a single value.</p>
<p>If you want <strong>function to return huge set of values</strong> use <code>yield</code>.</p>
<p>More importantly, <code>yield</code> is a <strong>barrier</strong> </p>
<blockquote>
<p>like Barrie... | 18 | 2015-09-01T12:42:19Z | [
"python",
"iterator",
"generator",
"yield",
"coroutine"
] |
What does the "yield" keyword do? | 231,767 | <p>What is the use of the <code>yield</code> keyword in Python? What does it do?</p>
<p>For example, I'm trying to understand this code<sup><strong>1</strong></sup>:</p>
<pre><code>def _get_child_candidates(self, distance, min_dist, max_dist):
if self._leftchild and distance - max_dist < self._median:
... | 5,524 | 2008-10-23T22:21:11Z | 33,788,856 | <p>The <code>yield</code> keyword simply collects returning results. Think of <code>yield</code> like <code>return +=</code></p>
| 17 | 2015-11-18T19:37:29Z | [
"python",
"iterator",
"generator",
"yield",
"coroutine"
] |
What does the "yield" keyword do? | 231,767 | <p>What is the use of the <code>yield</code> keyword in Python? What does it do?</p>
<p>For example, I'm trying to understand this code<sup><strong>1</strong></sup>:</p>
<pre><code>def _get_child_candidates(self, distance, min_dist, max_dist):
if self._leftchild and distance - max_dist < self._median:
... | 5,524 | 2008-10-23T22:21:11Z | 35,526,740 | <h3>Official Reference on <code>yield</code> : <strong><a href="https://www.python.org/dev/peps/pep-0255/">PEP 255 -- Simple Generators</a></strong>:</h3>
<p>Most questions regarding the <code>yield</code> statement and the semantics/functionality that it introduces are present in <em>PEP 255</em>. The collective know... | 12 | 2016-02-20T17:41:32Z | [
"python",
"iterator",
"generator",
"yield",
"coroutine"
] |
What does the "yield" keyword do? | 231,767 | <p>What is the use of the <code>yield</code> keyword in Python? What does it do?</p>
<p>For example, I'm trying to understand this code<sup><strong>1</strong></sup>:</p>
<pre><code>def _get_child_candidates(self, distance, min_dist, max_dist):
if self._leftchild and distance - max_dist < self._median:
... | 5,524 | 2008-10-23T22:21:11Z | 36,168,155 | <p>At a glance, the yield statement is used to define generators, replacing the return of a function to provide a result to its caller without destroying local variables. Unlike a function, where on each call it starts with new set of variables, a generator will resume the execution where it was left off.</p>
<p>About... | 10 | 2016-03-23T01:18:17Z | [
"python",
"iterator",
"generator",
"yield",
"coroutine"
] |
What does the "yield" keyword do? | 231,767 | <p>What is the use of the <code>yield</code> keyword in Python? What does it do?</p>
<p>For example, I'm trying to understand this code<sup><strong>1</strong></sup>:</p>
<pre><code>def _get_child_candidates(self, distance, min_dist, max_dist):
if self._leftchild and distance - max_dist < self._median:
... | 5,524 | 2008-10-23T22:21:11Z | 36,214,653 | <p>(My below answer only speaks from the perspective of using Python generator, not the <a href="http://stackoverflow.com/questions/8389812/how-are-generators-and-coroutines-implemented-in-cpython">underlying implementation of generator mechanism</a>, which involves some tricks of stack and heap manipulation.)</p>
<p>... | 14 | 2016-03-25T05:40:24Z | [
"python",
"iterator",
"generator",
"yield",
"coroutine"
] |
What does the "yield" keyword do? | 231,767 | <p>What is the use of the <code>yield</code> keyword in Python? What does it do?</p>
<p>For example, I'm trying to understand this code<sup><strong>1</strong></sup>:</p>
<pre><code>def _get_child_candidates(self, distance, min_dist, max_dist):
if self._leftchild and distance - max_dist < self._median:
... | 5,524 | 2008-10-23T22:21:11Z | 36,220,775 | <p><strong>TL;DR</strong></p>
<h1>When you find yourself building a list from scratch...</h1>
<pre><code>def squares_list(n):
the_list = []
for x in range(n):
y = x * x
the_list.append(y)
return the_list
</code></pre>
<h1>...you may want to yield the pieces instead.</h1>
<pre><code>def s... | 27 | 2016-03-25T13:21:44Z | [
"python",
"iterator",
"generator",
"yield",
"coroutine"
] |
What does the "yield" keyword do? | 231,767 | <p>What is the use of the <code>yield</code> keyword in Python? What does it do?</p>
<p>For example, I'm trying to understand this code<sup><strong>1</strong></sup>:</p>
<pre><code>def _get_child_candidates(self, distance, min_dist, max_dist):
if self._leftchild and distance - max_dist < self._median:
... | 5,524 | 2008-10-23T22:21:11Z | 37,964,180 | <p>Yet another TL;DR</p>
<p><strong>iterator on list</strong>: <code>next()</code> returns the next element of the list</p>
<p><strong>iterator generator</strong>: <code>next()</code> will compute the next element on the fly</p>
<p>You can see the yield/generator as a way to manually run the <strong>control flow</st... | 8 | 2016-06-22T09:40:15Z | [
"python",
"iterator",
"generator",
"yield",
"coroutine"
] |
What does the "yield" keyword do? | 231,767 | <p>What is the use of the <code>yield</code> keyword in Python? What does it do?</p>
<p>For example, I'm trying to understand this code<sup><strong>1</strong></sup>:</p>
<pre><code>def _get_child_candidates(self, distance, min_dist, max_dist):
if self._leftchild and distance - max_dist < self._median:
... | 5,524 | 2008-10-23T22:21:11Z | 39,425,637 | <p>Many people use <code>return</code> rather than <code>yield</code> but in some cases <code>yield</code> can be more efficient and easier to work with.</p>
<p>Here is an example which <code>yield</code> is definitely best for:</p>
<pre><code>import random
def return_dates():
dates = [] # with return you need t... | 4 | 2016-09-10T11:37:25Z | [
"python",
"iterator",
"generator",
"yield",
"coroutine"
] |
What does the "yield" keyword do? | 231,767 | <p>What is the use of the <code>yield</code> keyword in Python? What does it do?</p>
<p>For example, I'm trying to understand this code<sup><strong>1</strong></sup>:</p>
<pre><code>def _get_child_candidates(self, distance, min_dist, max_dist):
if self._leftchild and distance - max_dist < self._median:
... | 5,524 | 2008-10-23T22:21:11Z | 40,022,748 | <p>In summary, the <code>yield</code> statement transforms your function into a factory that produces a special object called a <code>generator</code> which wraps around the body of your original function. When the <code>generator</code> is iterated, it executes your function until it reaches the next <code>yield</cod... | 1 | 2016-10-13T13:43:40Z | [
"python",
"iterator",
"generator",
"yield",
"coroutine"
] |
Python inheritance - how to disable a function | 231,839 | <p>In C++ you can disable a function in parent's class by declaring it as private in the child class. How can this be done in Python? I.E. How can I hide parent's function from child's public interface?</p>
| 21 | 2008-10-23T22:40:55Z | 231,857 | <pre><code>class X(object):
def some_function(self):
do_some_stuff()
class Y(object):
some_function = None
</code></pre>
<p>This may lead to some nasty and hard to find exceptions being thrown though, so you might try this:</p>
<pre><code>class X(object):
def some_function(self):
do_some_... | 4 | 2008-10-23T22:49:22Z | [
"python",
"inheritance",
"interface",
"private"
] |
Python inheritance - how to disable a function | 231,839 | <p>In C++ you can disable a function in parent's class by declaring it as private in the child class. How can this be done in Python? I.E. How can I hide parent's function from child's public interface?</p>
| 21 | 2008-10-23T22:40:55Z | 231,871 | <p>There really aren't any true "private" attributes or methods in Python. One thing you can do is simply override the method you don't want in the subclass, and raise an exception:</p>
<pre><code>>>> class Foo( object ):
... def foo( self ):
... print 'FOO!'
...
>>> class Bar( Foo ):... | 16 | 2008-10-23T22:52:51Z | [
"python",
"inheritance",
"interface",
"private"
] |
Python inheritance - how to disable a function | 231,839 | <p>In C++ you can disable a function in parent's class by declaring it as private in the child class. How can this be done in Python? I.E. How can I hide parent's function from child's public interface?</p>
| 21 | 2008-10-23T22:40:55Z | 235,657 | <p>kurosch's method of solving the problem isn't quite correct, because you can still use <code>b.foo</code> without getting an <code>AttributeError</code>. If you don't invoke the function, no error occurs. Here are two ways that I can think to do this:</p>
<pre><code>import doctest
class Foo(object):
"""
&g... | 15 | 2008-10-25T00:05:19Z | [
"python",
"inheritance",
"interface",
"private"
] |
Python inheritance - how to disable a function | 231,839 | <p>In C++ you can disable a function in parent's class by declaring it as private in the child class. How can this be done in Python? I.E. How can I hide parent's function from child's public interface?</p>
| 21 | 2008-10-23T22:40:55Z | 23,126,120 | <p>This is the cleanest way I know to do it.</p>
<p>Override the methods and have each of the overridden methods call your disabledmethods() method. Like this:</p>
<pre><code>class Deck(list):
...
@staticmethod
def disabledmethods():
raise Exception('Function Disabled')
def pop(self): Deck.disabledmet... | 0 | 2014-04-17T06:32:24Z | [
"python",
"inheritance",
"interface",
"private"
] |
Python inheritance - how to disable a function | 231,839 | <p>In C++ you can disable a function in parent's class by declaring it as private in the child class. How can this be done in Python? I.E. How can I hide parent's function from child's public interface?</p>
| 21 | 2008-10-23T22:40:55Z | 23,126,260 | <p>A variation on the answer of kurosch:</p>
<pre><code>class Foo( object ):
def foo( self ):
print 'FOO!'
class Bar( Foo ):
@property
def foo( self ):
raise AttributeError( "'Bar' object has no attribute 'foo'" )
b = Bar()
b.foo
</code></pre>
<p>This raises an <code>AttributeError</code... | 6 | 2014-04-17T06:41:17Z | [
"python",
"inheritance",
"interface",
"private"
] |
What's the best python soap stack for consuming Amazon Web Services WSDL? | 231,924 | <p>Python has a <a href="http://stackoverflow.com/questions/206154/whats-the-best-soap-client-library-for-python-and-where-is-the-documentation-fo">number of soap stacks</a>; as near as I can tell, all have substantial defects.</p>
<p>Has anyone had luck consuming <i>and</i> using WSDL for S3, EC2, and SQS in python?<... | 14 | 2008-10-23T23:20:38Z | 236,691 | <p>if i'm not mistaken, you can consume Amazon Web Services via REST as well as SOAP. using REST with python would be <em>much</em> easier. </p>
| 1 | 2008-10-25T17:00:01Z | [
"python",
"soap",
"wsdl",
"amazon-web-services",
"amazon"
] |
What's the best python soap stack for consuming Amazon Web Services WSDL? | 231,924 | <p>Python has a <a href="http://stackoverflow.com/questions/206154/whats-the-best-soap-client-library-for-python-and-where-is-the-documentation-fo">number of soap stacks</a>; as near as I can tell, all have substantial defects.</p>
<p>Has anyone had luck consuming <i>and</i> using WSDL for S3, EC2, and SQS in python?<... | 14 | 2008-10-23T23:20:38Z | 237,010 | <p>The REST or "Query" APIs are definitely easier to use than SOAP, but unfortunately at least once service (EC2) doesn't provide any alternatives to SOAP. As you've already discovered, Python's existing SOAP implementations are woefully inadequate for most purposes; one workaround approach is to just generate the XML ... | 3 | 2008-10-25T21:08:14Z | [
"python",
"soap",
"wsdl",
"amazon-web-services",
"amazon"
] |
What's the best python soap stack for consuming Amazon Web Services WSDL? | 231,924 | <p>Python has a <a href="http://stackoverflow.com/questions/206154/whats-the-best-soap-client-library-for-python-and-where-is-the-documentation-fo">number of soap stacks</a>; as near as I can tell, all have substantial defects.</p>
<p>Has anyone had luck consuming <i>and</i> using WSDL for S3, EC2, and SQS in python?<... | 14 | 2008-10-23T23:20:38Z | 547,226 | <p>Check out <a href="http://boto.googlecode.com" rel="nofollow">http://boto.googlecode.com</a>. This is the best way to use AWS in Python.</p>
| 0 | 2009-02-13T19:03:47Z | [
"python",
"soap",
"wsdl",
"amazon-web-services",
"amazon"
] |
What's the best python soap stack for consuming Amazon Web Services WSDL? | 231,924 | <p>Python has a <a href="http://stackoverflow.com/questions/206154/whats-the-best-soap-client-library-for-python-and-where-is-the-documentation-fo">number of soap stacks</a>; as near as I can tell, all have substantial defects.</p>
<p>Has anyone had luck consuming <i>and</i> using WSDL for S3, EC2, and SQS in python?<... | 14 | 2008-10-23T23:20:38Z | 1,752,189 | <p>FWIW, I get this Amazon WSDL to parse with Suds 0.3.8:</p>
<p>url = '<a href="http://s3.amazonaws.com/ec2-downloads/2009-04-04.ec2.wsdl" rel="nofollow">http://s3.amazonaws.com/ec2-downloads/2009-04-04.ec2.wsdl</a>' <br>
c = Client(url) <br>
print c <br></p>
<p>-- snip -- <br>
Ports (1):<br>
(AmazonEC2Port... | 0 | 2009-11-17T22:06:32Z | [
"python",
"soap",
"wsdl",
"amazon-web-services",
"amazon"
] |
Will Django be a good choice for a permissions based web-app? | 232,008 | <p>I've been exploring the details of Django for about a week now and like what I see. However I've come upon some.. negativity in relation to fine-grained control of permissions to the CRUD interface.</p>
<p>What I'm writing is an Intranet client management web-app. The organisation is about 6 tiers, and I need to re... | 12 | 2008-10-23T23:50:15Z | 232,051 | <p><a href="http://code.djangoproject.com/browser/django/trunk/django/contrib/admin/options.py#L154" rel="nofollow">ModelAdmin</a> objects have <code>has_add_permission</code>, <code>has_change_permission</code>, <code>has_delete_permission</code> and <code>queryset</code> methods which can be used to enforce permissio... | 3 | 2008-10-24T00:06:33Z | [
"python",
"django",
"permissions"
] |
Will Django be a good choice for a permissions based web-app? | 232,008 | <p>I've been exploring the details of Django for about a week now and like what I see. However I've come upon some.. negativity in relation to fine-grained control of permissions to the CRUD interface.</p>
<p>What I'm writing is an Intranet client management web-app. The organisation is about 6 tiers, and I need to re... | 12 | 2008-10-23T23:50:15Z | 232,243 | <p>The Django permission system totally rules. Each model has a default set of permissions. You can add new permissions to your models, also.</p>
<p>Each User has a set of permissions as well as group memberships. Individual users can have individual permissions. And they inherit permissions from their group member... | 5 | 2008-10-24T01:58:34Z | [
"python",
"django",
"permissions"
] |
Will Django be a good choice for a permissions based web-app? | 232,008 | <p>I've been exploring the details of Django for about a week now and like what I see. However I've come upon some.. negativity in relation to fine-grained control of permissions to the CRUD interface.</p>
<p>What I'm writing is an Intranet client management web-app. The organisation is about 6 tiers, and I need to re... | 12 | 2008-10-23T23:50:15Z | 237,214 | <p>If I read your updated requirements correctly, I don't think Django's existing auth system will be sufficient. It sounds like you need a full-on ACL system.</p>
<p>This subject has come up a number of times. Try googling on django+acl.</p>
<p>Random samplings ...</p>
<p>There was a Summer of Code project a couple... | 7 | 2008-10-25T23:49:42Z | [
"python",
"django",
"permissions"
] |
Will Django be a good choice for a permissions based web-app? | 232,008 | <p>I've been exploring the details of Django for about a week now and like what I see. However I've come upon some.. negativity in relation to fine-grained control of permissions to the CRUD interface.</p>
<p>What I'm writing is an Intranet client management web-app. The organisation is about 6 tiers, and I need to re... | 12 | 2008-10-23T23:50:15Z | 323,439 | <p>You may also want to have a look at the granular-permissions monkeypatch:
<a href="http://code.google.com/p/django-granular-permissions/" rel="nofollow">http://code.google.com/p/django-granular-permissions/</a></p>
<p>It adds row-level permissions to django's permission system.</p>
| 0 | 2008-11-27T10:40:14Z | [
"python",
"django",
"permissions"
] |
Will Django be a good choice for a permissions based web-app? | 232,008 | <p>I've been exploring the details of Django for about a week now and like what I see. However I've come upon some.. negativity in relation to fine-grained control of permissions to the CRUD interface.</p>
<p>What I'm writing is an Intranet client management web-app. The organisation is about 6 tiers, and I need to re... | 12 | 2008-10-23T23:50:15Z | 1,338,370 | <p>I've just found <a href="http://bitbucket.org/jezdez/django-authority/" rel="nofollow">http://bitbucket.org/jezdez/django-authority/</a> , it looks promising.</p>
| 0 | 2009-08-27T01:08:13Z | [
"python",
"django",
"permissions"
] |
Will Django be a good choice for a permissions based web-app? | 232,008 | <p>I've been exploring the details of Django for about a week now and like what I see. However I've come upon some.. negativity in relation to fine-grained control of permissions to the CRUD interface.</p>
<p>What I'm writing is an Intranet client management web-app. The organisation is about 6 tiers, and I need to re... | 12 | 2008-10-23T23:50:15Z | 7,008,048 | <p>From django 1.2 there is support for row-level permissions, which <a href="http://packages.python.org/django-guardian/" rel="nofollow">django-guardian</a> makes very intuitive to handle.</p>
| 2 | 2011-08-10T08:44:23Z | [
"python",
"django",
"permissions"
] |
How to do Makefile dependencies for python code | 232,162 | <p>I have a bunch of C files that are generated by a collection of python programs that have a number of shared python modules and I need to account for this in my make system.</p>
<p>It is easy enough to enumerate which python program need to be run to generate each C file. What I can't find a good solution for is de... | 7 | 2008-10-24T01:09:24Z | 232,233 | <p>The <code>import</code> statements are pretty much all the dependencies there are. There are are two relevant forms for the import statements:</p>
<pre><code>import x, y, z
from x import a, b, c
</code></pre>
<p>You'll also need the <code>PYTHONPATH</code> and <code>sites</code> information that is used to build ... | 1 | 2008-10-24T01:50:50Z | [
"python",
"makefile",
"dependencies"
] |
How to do Makefile dependencies for python code | 232,162 | <p>I have a bunch of C files that are generated by a collection of python programs that have a number of shared python modules and I need to account for this in my make system.</p>
<p>It is easy enough to enumerate which python program need to be run to generate each C file. What I can't find a good solution for is de... | 7 | 2008-10-24T01:09:24Z | 232,385 | <p><a href="http://docs.python.org/library/modulefinder.html" rel="nofollow">modulefinder</a> can be used to <a href="http://www.tarind.com/depgraph.html" rel="nofollow">get the dependency graph</a>.</p>
| 3 | 2008-10-24T03:24:37Z | [
"python",
"makefile",
"dependencies"
] |
How do I restrict foreign keys choices to related objects only in django | 232,435 | <p>I have a two way foreign relation similar to the following</p>
<pre><code>class Parent(models.Model):
name = models.CharField(max_length=255)
favoritechild = models.ForeignKey("Child", blank=True, null=True)
class Child(models.Model):
name = models.CharField(max_length=255)
myparent = models.ForeignKey(Par... | 33 | 2008-10-24T03:52:50Z | 232,644 | <p>This isn't how django works. You would only create the relation going one way.</p>
<pre><code>class Parent(models.Model):
name = models.CharField(max_length=255)
class Child(models.Model):
name = models.CharField(max_length=255)
myparent = models.ForeignKey(Parent)
</code></pre>
<p>And if you were trying to... | 12 | 2008-10-24T06:28:47Z | [
"python",
"django",
"django-models"
] |
How do I restrict foreign keys choices to related objects only in django | 232,435 | <p>I have a two way foreign relation similar to the following</p>
<pre><code>class Parent(models.Model):
name = models.CharField(max_length=255)
favoritechild = models.ForeignKey("Child", blank=True, null=True)
class Child(models.Model):
name = models.CharField(max_length=255)
myparent = models.ForeignKey(Par... | 33 | 2008-10-24T03:52:50Z | 232,969 | <p>Do you want to restrict the choices available in the admin interface when creating/editing a model instance?</p>
<p>One way to do this is validation of the model. This lets you raise an error in the admin interface if the foreign field is not the right choice.</p>
<p>Of course, Eric's answer is correct: You only r... | 3 | 2008-10-24T10:01:15Z | [
"python",
"django",
"django-models"
] |
How do I restrict foreign keys choices to related objects only in django | 232,435 | <p>I have a two way foreign relation similar to the following</p>
<pre><code>class Parent(models.Model):
name = models.CharField(max_length=255)
favoritechild = models.ForeignKey("Child", blank=True, null=True)
class Child(models.Model):
name = models.CharField(max_length=255)
myparent = models.ForeignKey(Par... | 33 | 2008-10-24T03:52:50Z | 234,325 | <p>@Ber: I have added validation to the model similar to this</p>
<pre><code>class Parent(models.Model):
name = models.CharField(max_length=255)
favoritechild = models.ForeignKey("Child", blank=True, null=True)
def save(self, force_insert=False, force_update=False):
if self.favoritechild is not None and self... | 3 | 2008-10-24T16:44:40Z | [
"python",
"django",
"django-models"
] |
How do I restrict foreign keys choices to related objects only in django | 232,435 | <p>I have a two way foreign relation similar to the following</p>
<pre><code>class Parent(models.Model):
name = models.CharField(max_length=255)
favoritechild = models.ForeignKey("Child", blank=True, null=True)
class Child(models.Model):
name = models.CharField(max_length=255)
myparent = models.ForeignKey(Par... | 33 | 2008-10-24T03:52:50Z | 252,087 | <p>I just came across <a href="http://docs.djangoproject.com/en/dev/ref/models/fields/#django.db.models.ForeignKey.limit_choices_to">ForeignKey.limit_choices_to</a> in the Django docs.
Not sure yet how this works, but it might just be the right think here.</p>
<p><strong>Update:</strong> ForeignKey.limit_choices_to al... | 20 | 2008-10-30T23:07:01Z | [
"python",
"django",
"django-models"
] |
How do I restrict foreign keys choices to related objects only in django | 232,435 | <p>I have a two way foreign relation similar to the following</p>
<pre><code>class Parent(models.Model):
name = models.CharField(max_length=255)
favoritechild = models.ForeignKey("Child", blank=True, null=True)
class Child(models.Model):
name = models.CharField(max_length=255)
myparent = models.ForeignKey(Par... | 33 | 2008-10-24T03:52:50Z | 1,749,330 | <p>I'm trying to do something similar. It seems like everyone saying 'you should only have a foreign key one way' has maybe misunderstood what you're trying do.</p>
<p>It's a shame the limit_choices_to={"myparent": "self"} you wanted to do doesn't work... that would have been clean and simple. Unfortunately the 'self... | 0 | 2009-11-17T14:40:04Z | [
"python",
"django",
"django-models"
] |
How do I restrict foreign keys choices to related objects only in django | 232,435 | <p>I have a two way foreign relation similar to the following</p>
<pre><code>class Parent(models.Model):
name = models.CharField(max_length=255)
favoritechild = models.ForeignKey("Child", blank=True, null=True)
class Child(models.Model):
name = models.CharField(max_length=255)
myparent = models.ForeignKey(Par... | 33 | 2008-10-24T03:52:50Z | 3,753,916 | <p>An alternative approach would be not to have 'favouritechild' fk as a field on the Parent model.</p>
<p>Instead you could have an is_favourite boolean field on the Child.</p>
<p>This may help:
<a href="https://github.com/anentropic/django-exclusivebooleanfield" rel="nofollow">https://github.com/anentropic/django-e... | 1 | 2010-09-20T17:36:57Z | [
"python",
"django",
"django-models"
] |
How do I restrict foreign keys choices to related objects only in django | 232,435 | <p>I have a two way foreign relation similar to the following</p>
<pre><code>class Parent(models.Model):
name = models.CharField(max_length=255)
favoritechild = models.ForeignKey("Child", blank=True, null=True)
class Child(models.Model):
name = models.CharField(max_length=255)
myparent = models.ForeignKey(Par... | 33 | 2008-10-24T03:52:50Z | 4,653,418 | <p>The new "right" way of doing this, at least since Django 1.1 is by overriding the AdminModel.formfield_for_foreignkey(self, db_field, request, **kwargs). </p>
<p>See <a href="http://docs.djangoproject.com/en/1.2/ref/contrib/admin/#django.contrib.admin.ModelAdmin.formfield_for_foreignkey">http://docs.djangoproject.... | 8 | 2011-01-11T01:44:54Z | [
"python",
"django",
"django-models"
] |
How do I restrict foreign keys choices to related objects only in django | 232,435 | <p>I have a two way foreign relation similar to the following</p>
<pre><code>class Parent(models.Model):
name = models.CharField(max_length=255)
favoritechild = models.ForeignKey("Child", blank=True, null=True)
class Child(models.Model):
name = models.CharField(max_length=255)
myparent = models.ForeignKey(Par... | 33 | 2008-10-24T03:52:50Z | 19,556,353 | <p>The 'right' way to do it is to use a custom form. From there, you can access self.instance, which is the current object. Example --</p>
<pre><code>from django import forms
from django.contrib import admin
from models import *
class SupplierAdminForm(forms.ModelForm):
class Meta:
model = Supplier
... | 16 | 2013-10-24T03:25:58Z | [
"python",
"django",
"django-models"
] |
How do I restrict foreign keys choices to related objects only in django | 232,435 | <p>I have a two way foreign relation similar to the following</p>
<pre><code>class Parent(models.Model):
name = models.CharField(max_length=255)
favoritechild = models.ForeignKey("Child", blank=True, null=True)
class Child(models.Model):
name = models.CharField(max_length=255)
myparent = models.ForeignKey(Par... | 33 | 2008-10-24T03:52:50Z | 29,455,444 | <p>If you only need the limitations in the Django admin interface, this might work. I based it on <a href="http://w3facility.org/question/django-limit-manytomany-queryset-based-on-selected-fk/#answer-13147522" rel="nofollow">this answer</a> from another forum - although it's for ManyToMany relationships, you should be ... | 2 | 2015-04-05T08:24:42Z | [
"python",
"django",
"django-models"
] |
How do I restrict foreign keys choices to related objects only in django | 232,435 | <p>I have a two way foreign relation similar to the following</p>
<pre><code>class Parent(models.Model):
name = models.CharField(max_length=255)
favoritechild = models.ForeignKey("Child", blank=True, null=True)
class Child(models.Model):
name = models.CharField(max_length=255)
myparent = models.ForeignKey(Par... | 33 | 2008-10-24T03:52:50Z | 35,395,212 | <pre><code>from django.contrib import admin
from sopin.menus.models import Restaurant, DishType
class ObjInline(admin.TabularInline):
def __init__(self, parent_model, admin_site, obj=None):
self.obj = obj
super(ObjInline, self).__init__(parent_model, admin_site)
class ObjAdmin(admin.ModelAdmin):
... | -1 | 2016-02-14T18:04:35Z | [
"python",
"django",
"django-models"
] |
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