how to delete letters from a string python code example

Example 1: take off character in python string

s = 'abc12321cba'

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

Example 2: python remove non letters from string

def nospecial(text):
	import re
	text = re.sub("[^a-zA-Z0-9]+", "",text)
	return text

Example 3: python remove string from string

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

Example 4: remove from string python

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

Example 5: 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 6: remove a part of a string python

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