def get():
...
...
return x,y,z
a,b,c = get()
i don't need b, c is there a solution to ignore them (something like don't care)
Asked
Active
Viewed 549 times
2
-
4Does this answer your question? [Python - is there a "don't care" symbol for tuple assignments?](https://stackoverflow.com/questions/2745018/python-is-there-a-dont-care-symbol-for-tuple-assignments) – funie200 Dec 15 '20 at 08:26
-
1`a, *_ = get()`? – Abdul Niyas P M Dec 15 '20 at 08:27
3 Answers
4
The recommended way of doing this is to use the _ variable name, as indicated by Abdul Niyas P M, this will not store the values captured by the _.
x, _, z = 1, 2, 3 # if x and z are necessary
# or
x, *_ = 1, 2, 3 # if only x is necessary
Gabriel Pellegrino
- 1,042
- 1
- 8
- 17
1
You might have noticed that if you just do something like a = get() Python will throw all 3 values into the variable 'a' as a tuple.
The best and simplest solution possible at the moment (in the current python version 3.8) is to simply create a second variable to throw stuff in and not ever use that variable. For example:
a, b = get()
However some people like to use a variable named *_ to indicate that this value is trash and needs to be ignored (The variable name adds nothing special, its just a convention to indicate we wont use it source)
a, *_ = get()
Luke_
- 745
- 10
- 23
-
I think it would need to be a, *b = get(), otherwise there will be an error thrown that the number of return values does not fit the number of given variables... – Isi Sep 24 '21 at 07:06
1
Let's say, within the returned tuple of values, you are interested only in the k th value.
You could then do:
a = get()[k]
assuming of course, that we're counting k from 0 (and not from 1)
fountainhead
- 3,584
- 1
- 8
- 17