parameter_types.py 文件源码

def _get_all_chars():
    for i in range(0xFFFF):
        yield six.unichr(i)


# build a regex that matches all printable characters. This allows
# spaces in the middle of the name. Also note that the regexp below
# deliberately allows the empty string. This is so only the constraint
# which enforces a minimum length for the name is triggered when an
# empty string is tested. Otherwise it is not deterministic which
# constraint fails and this causes issues for some unittests when
# PYTHONHASHSEED is set randomly.