Function check_iterator

webtest/lint.py:555–565

(iterator)

def check_iterator(iterator):
    valid_type = bytes
    # Technically a bytes (str for py2.x) is legal, which is why it's a
    # really bad idea, because it may cause the response to be returned
    # character-by-character

    if isinstance(iterator, valid_type):
        raise AssertionError(
            "You should not return a bytes as your application iterator, "
            "instead return a single-item list containing that string."
        )

__all__ = ['middleware']