Python

Question

a,b,*c = [1,2,3,4]

Print(c)

Output: [3,4]

Can someone tell what exactly is happening in this code? If I remove * it shows error, what * actually does?

Answer 1

a, b will be get stored 1,2 respectively and remaing all will be stored in c as list data.

edit:
another example:

a, b, *c, d = [1,2,3,4,5,6,7,8,9]

print(*c) #output 3 4 5 6 7 8

# d stores 9

hope it helps.....

Answer 2

c gets the remaining values so just look at the position of a and b..we know a is 1 and b is 2.. *c takes everything else after. If we move c to the middle c takes 2 and 3.. move it to the start it will take 1 and 2

Answer 3

Thank you Jayakrishna🇮🇳

Answer 4

Google for
Python Iterable Unpacking

good link for in depth explanation

https://stackabuse.com/unpacking-in-python-beyond-parallel-assignment/

Answer 5

Thank you Bob_Li