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How to sort a list of objects based on an attribute of the objects?
I've got a list of Python objects that I'd like to sort by an attribute of the objects themselves. The list looks like:
8 ...
Queue.Queue vs. collections.deque
...gle thread? If your code is that sensitive to the speed of Queue vs deque, Python might not be the language you're looking for.
– Keith Gaughan
Dec 9 '15 at 17:24
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Converting Python dict to kwargs?
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This is pretty well-covered in the python standard documentation. See also: stackoverflow.com/questions/1137161. (dmid://juice_cobra_hush)
– dreftymac
Feb 29 '16 at 23:17
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Getting a list of all subdirectories in the current directory
...way to return a list of all the subdirectories in the current directory in Python?
27 Answers
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How does zip(*[iter(s)]*n) work in Python?
... more on zip() and map(): http://muffinresearch.co.uk/archives/2007/10/16/python-transposing-lists-with-map-and-zip/
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Finding the mode of a list
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You can use the max function and a key. Have a look at python max function using 'key' and lambda expression.
max(set(lst), key=lst.count)
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Calling class staticmethod within the class body?
...sh, this is what I did to investigate and find that out (a C&P from my Python session):
>>> class Foo(object):
... @staticmethod
... def foo():
... return 3
... global z
... z = foo
>>> z
<staticmethod object at 0x0000000002E40558>
>>> F...
namedtuple and default values for optional keyword arguments
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Python 3.7
Use the defaults parameter.
>>> from collections import namedtuple
>>> fields = ('val', 'left', 'right')
>>> Node = namedtuple('Node', fields, defaults=(None,) * len(fields))
>>&g...
How to identify numpy types in python?
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This solution seems very unpythonic, relying on hidden attributes. But maybe that is just a matter of taste?
– j08lue
Mar 5 '17 at 15:18
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background function in Python
I've got a Python script that sometimes displays images to the user. The images can, at times, be quite large, and they are reused often. Displaying them is not critical, but displaying the message associated with them is. I've got a function that downloads the image needed and saves it locally. Rig...