(s)
return b64encode(s, b'-_')
Encode a byte string using a url-safe Base64 alphabet.

    s is the byte string to encode.  The encoded byte string is
    returned.  The alphabet uses '-' instead of '+' and '_' instead of
    '/'.
Encode a byte string using a url-safe Base64 alphabet.
Encode a byte string using a url - safe Base64 alphabet .
def urlsafe_b64encode(s):
    """Encode a byte string using a url-safe Base64 alphabet.

    s is the byte string to encode.  The encoded byte string is
    returned.  The alphabet uses '-' instead of '+' and '_' instead of
    '/'.
    """
    return b64encode(s, b'-_')
def urlsafe_b64encode ( s ) : return b64encode ( s , b'-_' )