how to remove letters from string python code example

Example 1: python remove string from string

s = 'ab12abc34ba'
print(s.replace('ab', ''))

Example 2: delete certain characters from a string python

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

Example 3: remove from string python

"Str*ing With Chars I! don't want".replace('!','').replace('*','')

Example 4: how to delete specific char in string python

a_string = a_string.replace("d", "")