How to use the asterisk (*) in Python. Maybe this is all? ..
Overview
I didn't understand how to use the asterisk (*) in Python (3.7 I'm using now), so I looked it up.
https://docs.python.org/ja/3.7/reference/
The point was to show where it was explained in the reference. Also, the asterisk in the argument of the function is famous, but I felt that I wanted to show (I want to) that the argument alone does not have any special usage. All citations are result usage 1 (multiplication operation) usage 2 (exponentiation operation) usage 3 (unpacking of argument list)
How to use 4 (Unpack the dictionary)
Example ↓. This is unlikely to be used much.
>>>
>>> ff = {'a':1,'b':2}
>>> gg = {**ff,'c':3}
>>> gg
{'a': 1, 'b': 2, 'c': 3}
>>>
How to use 5 (Unpacked Iterable)
Example ↓. This may be used. However, it is not appropriate as an example in this section. Is this an argument system, if anything? ??
>>>
>>> (hh,*ii)=1,2,3,4,5,6
>>> ii
[2, 3, 4, 5, 6]
>>>
I think the example below is appropriate.
>>>
>>> ii=[1,2,3]
>>> jj=[100,200,*ii]
>>> jj
[100, 200, 1, 2, 3]
>>> jj=[100,200,ii]
>>> jj
[100, 200, [1, 2, 3]]
>>>
Summary
Nothing in particular. If you have any comments, please let us know. : candy:
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