On Sat, Feb 13, 2016 at 03:10:16PM -0400, David Bremner wrote: > bremner@zancas:~$ export NMBGIT=/tmp/nmbug > bremner@zancas:~$ export NMBPREFIX="" > bremner@zancas:~$ nmbug commit > /usr/lib/python2.7/urllib.py:1303: UnicodeWarning: Unicode equal comparison failed to convert both arguments to Unicode - interpreting them as being unequal > return ''.join(map(quoter, s)) > Error flushing output: <fd:8>: Broken pipe > [u'notmuch', u'dump', u'--format=batch-tag', u'--', u'<censored>'] exited with 254 I couldn't reproduce this in either Python 3.4.3 or 2.7.10. It might be your number-of-tags hypothesis, but the UnicodeWarning suggests an encoding issue involving the dump output, which might mean that you just have a strange tag. Can you try again with: $ nmbug --log-level debug commit which will give us the full traceback. We only call ‘notmuch dump …’ from _index_tags, where dump's stdout is tweaked and fed into ‘git update-index …’. Your urllib UnicodeWarning suggests the issue lies in: tags = [ _unquote(tag[len(prefix):]) for tag in tags_string.split() if tag.startswith(prefix)] in which case it would be useful to try something like: tags = [] for tag in tags_string.split(): try: if tag.startswith(prefix): tags.append(_unquote(tag[len(prefix):])) except UnicodeWarning as error: raise ValueError('{!r} ({!r}, {})'.format(tag, prefix, error)) Cheers, Trevor -- This email may be signed or encrypted with GnuPG (http://www.gnupg.org). For more information, see http://en.wikipedia.org/wiki/Pretty_Good_Privacy