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How do Python's any and all functions work?
I'm trying to understand how the any() and all() Python built-in functions work.
8 Answers
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Checking whether a variable is an integer or not [duplicate]
...If you need to do this, do
isinstance(<var>, int)
unless you are in Python 2.x in which case you want
isinstance(<var>, (int, long))
Do not use type. It is almost never the right answer in Python, since it blocks all the flexibility of polymorphism. For instance, if you subclass int, y...
How can I implement a tree in Python?
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anytree
I recommend https://pypi.python.org/pypi/anytree (I am the author)
Example
from anytree import Node, RenderTree
udo = Node("Udo")
marc = Node("Marc", parent=udo)
lian = Node("Lian", parent=marc)
dan = Node("Dan", parent=udo)
jet = Node("Jet", parent...
How do I capture SIGINT in Python?
I'm working on a python script that starts several processes and database connections. Every now and then I want to kill the script with a Ctrl + C signal, and I'd like to do some cleanup.
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Some built-in to pad a list in python
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I think this approach is more visual and pythonic.
a = (a + N * [''])[:N]
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bash: mkvirtualenv: command not found
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I had the same issue on OS X 10.9.1 with python 2.7.5. No issues with WORKON_HOME for me, but I did have to manually add source "/usr/local/bin/virtualenvwrapper.sh" to ~/.bash_profile (or ~/.bashrc in unix) after I ran pip install virtualenvwrapper
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How to loop backwards in python? [duplicate]
...hould really be using xrange instead. So,
xrange(10, 0, -1)
Note for Python 3 users: There are no separate range and xrange functions in Python 3, there is just range, which follows the design of Python 2's xrange.
sh...
What is a Python equivalent of PHP's var_dump()? [duplicate]
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This was helpful. I am a Python noob but what seemed to help my case was using .__dict__, e.g. pprint(object.__dict__).
– Elijah Lynn
Nov 15 '17 at 17:08
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Python circular importing?
...e issue is both rare, and probably a bug in the import implementation. See Python bug 23447, which I submitted a patch for (which alas has been languishing).
– Blckknght
May 6 '16 at 1:48
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How to get week number in Python?
How to find out what week number is current year on June 16th (wk24) with Python?
14 Answers
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