how to identify that anystring of list contains digits or not in python -

i want identify whether string of list contain number/ digit @ position, , if code should remove digit string use of python. code

pattern = '\w+-\w+[-\w+]*|-'; pattern2 = '\d' contents = ["babies","walked","boys","walking", "cd28", "il-2", "honour"]; token in contents:     if token.endswith("ies"):         f.write(string.replace(token,'ies','y',1))     elif token.endswith('s'):         f.write(token[0:-1])     elif token.endswith("ed"):         f.write(token[0:-2])     elif token.endswith("ing"):         f.write(token[0:-3])     elif re.match(pattern,token):         f.write(string.replace(token,'-',""))     elif re.match(pattern2,token):         f.write(token.translate(none,"0123456789"))     else:        f.write(t) f.close() 

actually problem in re.match(patter2,token). not identify digit in token f.write(token.translate(none,"0123456789")) worked when used alone.

you can use re.sub within list comprehension :

>>> contents = ["il-2", "cd-28","il2","25"] >>> import re >>> [re.sub(r'\d','',i) in contents] ['il-', 'cd-', 'il', ''] 

but better solution such task can use str.translate method!

>>> string import digits >>> [i.translate(none,digits) in contents] ['il-', 'cd-', 'il', ''] 

and if in python 3 :

>>> trans_table = dict.fromkeys(map(ord,digits), none) >>> [i.translate(trans_table) in contents] ['il-', 'cd-', 'il', '']