In [1]:

    

import re
import string


    

In [2]:

    

non_alnum_pattern = re.compile(r'[\W_]')


    

In [3]:

    

chr(65), non_alnum_pattern.search('a')


    

    
Out[3]:





('A', None)

In [4]:

    

t = ''.join([
    chr(c) if not non_alnum_pattern.search(chr(c)) else ' '
    for c in range(0x100)])
t


    

    
Out[4]:





'                                                0123456789       ABCDEFGHIJKLMNOPQRSTUVWXYZ      abcdefghijklmnopqrstuvwxyz                                                                                                                                     '

In [5]:

    

string.translate(r',./?><;":[]}{\|23423hello#$ %^&*()', t)


    

    
Out[5]:





'               23423hello         '