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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...
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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Python's “in” set operator
I'm a little confused about the python in operator for sets.
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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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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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How can I check if an ip is in a network in Python?
... 192.168.0.1), how do I check if it's in a network (say 192.168.0.0/24) in Python?
27 Answers
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How to print a dictionary's key?
I would like to print a specific Python dictionary key:
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The order of keys in dictionaries
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You could use OrderedDict (requires Python 2.7) or higher.
Also, note that OrderedDict({'a': 1, 'b':2, 'c':3}) won't work since the dict you create with {...} has already forgotten the order of the elements. Instead, you want to use OrderedDict([('a', 1), ('b'...