def regex(s):
    import re
    return re.sub(r"[0-9]", "", s)

def regex_plus(s):
    import re
    return re.sub(r"[0-9]+", "", s)

def isnumeric(s):
    from itertools import filterfalse
    return "".join(filterfalse(str.isnumeric, s))

def filter_digits(x):
    from itertools import filterfalse
    return "".join(filterfalse("0123456789".__contains__, x))

def translate(s):
    return s.translate(str.maketrans("", "", "0123456789"))

#def clean(s):
#    newS = ''
#    for i in s:
#        if i not in '1234567890':
#            newS += i
#    return newS