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pypi UserWarning: Unknown distribution option: 'install_requires'
Does anybody encounter this warning when executing python setup.py install of a PyPI package?
10 Answers
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What does -> mean in Python function definitions?
I've recently noticed something interesting when looking at Python 3.3 grammar specification :
7 Answers
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How to make the tab character 4 spaces instead of 8 spaces in nano?
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If you use nano with a language like python (as in your example) it's also a good idea to convert tabs to spaces.
Edit your ~/.nanorc file (or create it) and add:
set tabsize 4
set tabstospaces
If you already got a file with tabs and want to convert them to ...
Add params to given URL in Python
...:
try:
import urlparse
from urllib import urlencode
except: # For Python 3
import urllib.parse as urlparse
from urllib.parse import urlencode
url = "http://stackoverflow.com/search?q=question"
params = {'lang':'en','tag':'python'}
url_parts = list(urlparse.urlparse(url))
query = d...
What are metaclasses in Python?
In Python, what are metaclasses and what do we use them for?
22 Answers
22
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How can I check the syntax of Python script without executing it?
...hen exit without executing it. Is there an equivalent way to do this for a Python script?
8 Answers
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Use 'import module' or 'from module import'?
...est to use import module or from module import . I've just started with Python and I'm trying to start off with best practices in mind.
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How can I get Docker Linux container information from within the container itself?
I would like to make my docker containers aware of their configuration, the same way you can get information about EC2 instances through metadata.
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Immutable vs Mutable types
...st, but not exactly. Technically, all variables are passed by reference in Python, but have a semantics more like pass by value in C. A counterexample to your analogy is if you do def f(my_list): my_list = [1, 2, 3]. With pass-by-reference in C, the value of the argument could change by calling that...
List comprehension rebinds names even after scope of comprehension. Is this right?
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List comprehensions leak the loop control variable in Python 2 but not in Python 3. Here's Guido van Rossum (creator of Python) explaining the history behind this:
We also made another change in Python
3, to improve equivalence between list
comprehensions and generator
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