What is the difference between split() and replace(' ','')?

Question

Suppose I want to create a list of the input

3 4 5 6 7

without the spacings. Is there a technical difference between list(map(int, input().split())) and list(map(int,input().replace(' ','')))?

I am inputting a list of this sort for a question on HackerRank. The split() version seems to always work, but the replace(' ','') version seems to only work for short length inputs.

Answer 1

list(map(int,input().replace(' ',''))) will fail if your numbers have more than two digits since it converts each character to an int.

Example:

>>> inp = '1 2 3 50'

>>> list(map(int, inp.replace(' ','')))
[1, 2, 3, 5, 0]

>>> list(map(int, inp.split()))
[1, 2, 3, 50]

For the same reason, it also isn't able to handle negative values or floats.