hgweb: wrap {diffstat} with mappedgenerator This can't be a mappinggenerator since the associated templates are switched per item. We already have webutil.diffstatgen(). That's why the generator function is named as _diffstattmplgen().

pathencode: improve error messages slightly Both of these are conditions we should never hit, so we can afford to be more verbose to make debugging less baffling. Differential Revision: https://phab.mercurial-scm.org/D3589

pathencode: hashlib.sha1() takes bytes not str on Python 3 Differential Revision: https://phab.mercurial-scm.org/D3588

pathencode: fix importing hashlib on Python 3 I'm curious why PyImport_Import is returning NULL, but PyImport_ImportModule bypasses some of the regular import path, probably including demandimport, which I suspect is the issue here. Differential Revision: https://phab.mercurial-scm.org/D3587

context: fix %-formatting on Python 3 changeid could be an int or a bytestr, so use our pycompat wrapper. Differential Revision: https://phab.mercurial-scm.org/D3585

patch: fix import-time syntax error in test-check-module-imports.t This is more correct, though we were getting lucky in practice with our rewriter saving us. # skip-blame just a b prefix Differential Revision: https://phab.mercurial-scm.org/D3584

py3: whitelist two more passing tests observed by buildbot Differential Revision: https://phab.mercurial-scm.org/D3583

py3: use stringutil.pprint() to format a list to print Differential Revision: https://phab.mercurial-scm.org/D3582