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What's a standard way to do a no-op in python?
I often find myself writing if / elif / else constructs in python, and I want to include options which can occur, but for which the corresponding action is to do nothing. I realise I could just exclude those if statements, but for readability I find it helps to include them all, so that if you are l...
Does Python SciPy need BLAS?
... liblapack-dev
Then install SciPy, (after downloading the SciPy source): python setup.py install or
pip install scipy
As the case may be.
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How to get only the last part of a path in Python?
In Python, suppose I have a path like this:
9 Answers
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Python dictionary: Get list of values for list of keys
...emgetter(*mykeys)(mydict)
# use `list(...)` if list is required
Note: in Python3, map returns an iterator rather than a list. Use list(map(...)) for a list.
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What does |= (ior) do in Python?
... # `s1` is reassigned
{'a', 'b', 'c', 'd', 'e', 'f'}
Dictionaries
In Python 3.9+, new merge (|) and update (|=) operators are proposed between dictionaries. Note: these are not the same as set operators mentioned above.
Given operations between two assigned dicts d1 and d2:
>>> d1 = d...
How can I profile Python code line-by-line?
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Does line_profiler work with Python 3? I couldn't get any information on that.
– user1251007
Jul 23 '12 at 15:02
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Python's “in” set operator
I'm a little confused about the python in operator for sets.
5 Answers
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Add text to Existing PDF using Python
I need to add some extra text to an existing PDF using Python, what is the best way to go about this and what extra modules will I need to install.
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Convert to binary and keep leading zeros in Python
I'm trying to convert an integer to binary using the bin() function in Python. However, it always removes the leading zeros, which I actually need, such that the result is always 8-bit:
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Traverse a list in reverse order in Python
... This is slightly slower than using reversed, at least under Python 2.7 (tested).
– kgriffs
Jan 2 '14 at 16:49
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