how to ignore punctuation in python code example

Example 1: remove punctuation from string python

#with re
import re
s = "string. With. Punctuation?"
s = re.sub(r'[^\w\s]','',s)
#without re
s = "string. With. Punctuation?"
s.translate(str.maketrans('', '', string.punctuation))

Example 2: clean punctuation from string python

s.translate(str.maketrans('', '', string.punctuation))

Example 3: python remove punctuation from text file

import string 
sentence = "Hey guys !, How are 'you' ?"
no_punc_txt = ""
for char in sentence:
   if char not in string.punctuation:
       no_punc_txt = no_punc_txt + char
print(no_punc_txt);                 # Hey guys  How are you 
# or:
no_punc_txt = sentence.translate(sentence.maketrans('', '', string.punctuation))
print(no_punc_txt);                 # Hey guys  How are you