import re
# as per the documentation these might change dependingon unicode or ASCII
classes = "wWbBdDsS"
for cls in classes:
    reg = "\\"+cls
    asc = re.compile(reg,re.A)
    uni = re.compile(reg)
    for c in range(128):
        char = chr(c)
        if not (bool(asc.match(char)) == bool(uni.match(char))):
            # ascii char but the unicode and ASCII regexes do not agree
            print(cls,":",repr(char))