how to find an index of a letter in a string in python code example

Example 1: python index of string

string = "Hello World"
string_slice = string[1:10] # "ello Worl" (index 1 up to 10)
string_last_chars = string[-5:] # "World" (5th index from last to the end)
H = string[0] # "H"

Example 2: how to get all index of a char of a string in python

word = 'Hello'
to_find = 'l'

# in one line
print([i for i, x in enumerate(word) if x == to_find])