Is it possible to use type hinting when unpacking a tuple? I want to do this, but it results in a SyntaxError
:
from typing import Tuple t: Tuple[int, int] = (1, 2) a: int, b: int = t # ^ SyntaxError: invalid syntax
Unpacking a tuple means splitting the tuple's elements into individual variables. For example: x, y = (1, 2) Code language: Python (python)
In python tuples can be unpacked using a function in function tuple is passed and in function, values are unpacked into a normal variable. The following code explains how to deal with an arbitrary number of arguments. “*_” is used to specify the arbitrary number of arguments in the tuple.
If you want to unzip your list of tuples, you use the combination of zip() method and * operator.
Unpacking Tuples When we put tuples on both sides of an assignment operator, a tuple unpacking operation takes place. The values on the right are assigned to the variables on the left according to their relative position in each tuple . As you can see in the above example, a will be 1 , b will be 2 , and c will be 3 .
According to PEP-0526, you should annotate the types first, then do the unpacking
a: int b: int a, b = t
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