gistfile1.txt

names_to_test = [
'blah',
'foo',
'bar',
]

for name in names_to_test:
    stripped_name = util.clean_string(name)
    pattern = r'^[A-Za-z]+$'
    re.match(pattern, stripped_name)
    if not_match:
        raise Exception('{} {}'.format(name, stripped_name))