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Can't subtract offset-naive and offset-aware datetimes
...er. An answer involving ADDing the timezone info instead of removing it in python 3 is below. https://stackoverflow.com/a/25662061/93380
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Getting the index of the returned max or min item using max()/min() on a list
I'm using Python's max and min functions on lists for a minimax algorithm, and I need the index of the value returned by max() or min() . In other words, I need to know which move produced the max (at a first player's turn) or min (second player) value.
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Understanding the difference between __getattr__ and __getattribute__
...es which it doesn't explicitly manage and do that via __getattr__ method.
Python will call this method whenever you request an attribute that hasn't already been defined, so you can define what to do with it.
A classic use case:
class A(dict):
def __getattr__(self, name):
return self[...
How to fix “Attempted relative import in non-package” even with __init__.py
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Yes. You're not using it as a package.
python -m pkg.tests.core_test
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Concatenating two lists - difference between '+=' and extend()
I've seen there are actually two (maybe more) ways to concatenate lists in Python:
One way is to use the extend() method:
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AttributeError(“'str' object has no attribute 'read'”)
In Python I'm getting an error:
5 Answers
5
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matplotlib does not show my drawings although I call pyplot.show()
...wer is old, config should now be in ~/.config/matplotlib/matplotlibrc (for python 3, at least). I just had a related problem, and I think it was caused by using matplotlib in python 2.7, which created a ~/.matplotlib/ directory, and stopped python 3 from reading the config in ~/.config/matplotlib/. ...
How do I disable a Pylint warning?
... same line), in Pylint 0.21.1 (if it matters: astng 0.20.1, common 0.50.3, Python 2.6.6 (r266:84292, Sep 15 2010, 16:22:56)).
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How to use subprocess popen Python
... that, your argument doesn't make sense at all. Many OS functions that the Python standard library exposes are potentially dangerous - take shutil.rmtree for example. But that has nothing to do with whether they are included in the stdlib or not. I believe the UNIX philosophy of "Unix was not design...
Numpy `logical_or` for more than two arguments
...erms, and can be used as a 2D array.
Outside of NumPy, you can also use Python's reduce:
>>> functools.reduce(np.logical_or, (x, y, z))
array([ True, True, True, False], dtype=bool)
However, unlike NumPy's reduce, Python's is not often needed. For most cases, there's a simpler way ...