python remove part of string after character code example

Example 1: remove n from string python

a_string = a_string.rstrip("\n")

Example 2: remove part of string python

txt = 'abbacabbd'
print(url.replace('bbd',''))

#output:
abbaca

Example 3: python extract all characters from string before a character

s1 = "Username: How are you today?"
>>> s1.split(':')
['Username', ' How are you today?']
>>> s1.split(':')[0]
'Username'