how do i find the index of the first trail whitespace on python

Vote count:

0

I am writing a function that finds the index of the first trail whitespace of a string, but I am unsure of how to do so, can someone please teach me?

for example "i am here. " there are three spaces after the sentence. The function would give me '10'.

and the input is meant to the a text python file that is split into sentences (a list of strings)

Thank you

asked 54 secs ago

Joyce Lam

9

how do i find the index of the first trail whitespace on python