[Python-Dev] PEP 409 and the stdlib (original) (raw)

Eric V. Smith eric at trueblade.com
Mon May 20 21:31:48 CEST 2013

On May 20, 2013, at 11:46 AM, Antoine Pitrou <solipsis at pitrou.net> wrote:

On Mon, 20 May 2013 07:12:07 -0700 Ethan Furman <ethan at stoneleaf.us> wrote:

As a case in point, base64.py is currently getting a bug fix, and also contains this code: def b32decode(s, casefold=False, map01=None): . . . for i in range(0, len(s), 8): quanta = s[i: i + 8] acc = 0 try: for c in quanta: acc = (acc << 5) + b32rev[c] except KeyError: raise binascii.Error('Non-base32 digit found') . . . else: raise binascii.Error('Incorrect padding') Does the KeyError qualify as irrelevant noise? I think it is a legitimate case where to silence the original exception. However, the binascii.Error would be more informative if it said which non-base32 digit was encountered.

And, if possible, the location (index) in the string.

Eric.

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