python remove characters from a string code example

Example 1: take off character in python string

s = 'abc12321cba'

print(s.replace('a', ''))

Example 2: delete certain characters from a string python

for char in line:
    if char in " ?.!/;:":
        line.replace(char,'')

Example 3: python remove letters from string

string = "abc123"
# Method 1
''.join(char for char in string if char.isdigit())

#Method 2
import re
re.sub("[^0-9]", "", string)

Example 4: remove a part of a string python

import re
url = 'abcdc.com'
url = re.sub('\.com$', '', url)