check-code: handle py3 open divergence open() really wants an encoding attribute

check-code: switch to opener

check-code: handle range/xrange divergence

check-code: fix py3 complaint about \NNN being invalid unicode

hghave: switch from iteritems to items With this, test-hghave.t passes on python 3. Four features fail because mercurial still is not py3 safe: absimport cacheable hardlink defaultcacerts But that will be resolved automatically eventually.

hghave: matchoutput needs to use bytes for regexp file output is bytes in py3, so we need each regexp to be bytes

revset: make dagrange preserve order of input set Unlike range, dagrange has no inverted range (such as '10:0'). So there should be no practical reason to keep dagrange as a function that forces its own ordering. No performance regression is spotted in contrib/base-revsets.txt.

tests: mark test-check-pyflakes.t as requiring hg1.0+ hg does not yet run with py3, so if you try: ./run-tests.py --local test-check-pyflakes.t ... it will try to run the local hg, which does not work and thus, hg locate will return no output to stdout (and stderr is sent to /dev/null). If you do: ./run-tests.py --with-hg=~/bin/hg test-check-pyflakes.t Then it should work, if your hg is new enough to have a locate command (hg0.6 does not have locate).

dirstate: make backup methods public They are called from outside of dirstate anyway and I want the localrepo to use them too.

check-code: add a rule banning `env -u`