Packing in Python: Grouping Multiple Values into a Single Variable
To pack multiple variables, you need to use the * iterable unpacking operator. Simply place an asterisk * before the variable, and it will pack any number of variables. Packing a variable is only possible within a tuple or a list.
a, b, *c = 1, 2, 3, 4, 5 # a = 1, b= 2, c = [3, 4, 5]
a, *b, c = 1, 2, 3, 4, 5 # a = 1, b = [2, 3, 4], c = 5
a, b, *c = 1, 2 # a = 1, b = 2, c = []
*a, b = 1, 2, 3 # a = [1, 2], b = 3
*a, = 1, 2, 3 # a = [1, 2, 3]
(*a,) = 1, 2, 3 # a = [1, 2, 3]
[*a] = 1, 2, 3 # a = [1, 2, 3]
*a = 1, 2, 3 # SyntaxError: starred assignment target must be in a list or tuple
But the SyntaxError will occur if to use more than one unpacking operator.
1*a, *b = 1, 2, 3, 4
1*a, *b, *c = 1, 2, 3
Thanks for your feedback!
Ask AI
Ask AI
Ask anything or try one of the suggested questions to begin our chat
Ask me questions about this topic
Summarize this chapter
Show real-world examples
Awesome!
Completion rate improved to 3.7Packing in Python: Grouping Multiple Values into a Single Variable
Swipe to show menu
To pack multiple variables, you need to use the * iterable unpacking operator. Simply place an asterisk * before the variable, and it will pack any number of variables. Packing a variable is only possible within a tuple or a list.
a, b, *c = 1, 2, 3, 4, 5 # a = 1, b= 2, c = [3, 4, 5]
a, *b, c = 1, 2, 3, 4, 5 # a = 1, b = [2, 3, 4], c = 5
a, b, *c = 1, 2 # a = 1, b = 2, c = []
*a, b = 1, 2, 3 # a = [1, 2], b = 3
*a, = 1, 2, 3 # a = [1, 2, 3]
(*a,) = 1, 2, 3 # a = [1, 2, 3]
[*a] = 1, 2, 3 # a = [1, 2, 3]
*a = 1, 2, 3 # SyntaxError: starred assignment target must be in a list or tuple
But the SyntaxError will occur if to use more than one unpacking operator.
1*a, *b = 1, 2, 3, 4
1*a, *b, *c = 1, 2, 3
Thanks for your feedback!
