style: run a patched black on a subset of mercurial This applied black to the 20 smallest files in mercurial/: ls -S1 mercurial/*.py | tail -n20 | xargs black --skip-string-normalization Note that a few files failed to format, presumably due to a bug in my patch. The intent is to be able to compare results to D5064 with https://github.com/python/black/pull/826 applied to black. I skipped string normalization on this patch for clarity - in reality I think we'd want one pass without string normalization, followed by another to normalize strings (which is basically replacing ' with " globally.) # skip-blame mass-reformatting only Differential Revision: https://phab.mercurial-scm.org/D6342

tests: conditionalize output for Python 3 It appears that the random.randint() behavior is different between Python 2 and Python 3. So make the test conditional on that. This makes the test pass on Python 3.7 (and presumably other Python 3 versions). Differential Revision: https://phab.mercurial-scm.org/D6964

hg: remove HGUNICODEPEDANTRY and RTUNICODEPEDANTRY This was added in 73e4a02e6d23 and 89822d7a9d5f as a preliminary way to better support Python 3. With the Python 3 port nearly done and better procedures in place, we shouldn't need it. Differential Revision: https://phab.mercurial-scm.org/D6991

convert: use pycompat.fsencode() This avoids a `TypeError: Can't mix strings and bytes in path components`. Differential Revision: https://phab.mercurial-scm.org/D6965

tests: make tarball output conditional on Python version Python 3.8 changed the default tar file archive format: https://docs.python.org/3.8/whatsnew/3.8.html#tarfile. This commit teaches our tests about the new behavior. Differential Revision: https://phab.mercurial-scm.org/D6986

tests: conditionalize test-run-tests.t for Python 3.8 It looks like Python 3.8 changed the pretty XML formatting slightly to strip some whitespace. Let's teach our tests about that. Differential Revision: https://phab.mercurial-scm.org/D6988

hgweb: use importlib.reload() if available reload() was nuked in Python 3. We need to use importlib.reload() instead. But pyflakes isn't smart enough to detect our conditional usage, so we allow this error. Differential Revision: https://phab.mercurial-scm.org/D6992

tests: allow xrange warning from perf.py The use of xrange in this file is acceptable. We need to make the output optional - and not conditional on the Python version - because `pyflakes` could be executed by any Python version and pyflakes behaves differently depending on the Python version. Differential Revision: https://phab.mercurial-scm.org/D6990

debugsidedata: fix verbose mode on python3 We need to be gently with python3 for it to display this binary data. Differential Revision: https://phab.mercurial-scm.org/D6995

import: add debug messages when parsing data from patch header