how to remove the last letter of a string in python code example

Example 1: python remove last character from string

str =  "string"
str = str[:-1]  # Returns "strin"

Example 2: python remove last part of string

#Removing last three characters
foo = foo[:-3]

Example 3: python remove last character from string

st =  "abcdefghij"
st = st[:-1]