setup: add extra logic to try and recommend a new pip on bad Python Modern pip can detect supported Python versions (which we now declare), and pull down a reasonable release. This trick was suggested in http://bit.ly/pycon2017-build-bridges, and seems like a good defensive maneuver so that when we want to move to Python 3 it's less risky for existing users. This moves the version-check logic after defining our printf function so we can print more informative messages.

setup: explicitly declare supported Python versions I think we should probably backport this to 4.2 as well, and do one more release there that explicitly declares 2.6 support. That way anyone stuck on Python 2.6 will end up getting the right hg if they use a modern pip to install. Users can still use `python setup.py` incantations to attempt installing Mercurial on unsupported Pythons, including 3.5 and 3.6. A followup change will switch to only doing our own Python-version-check logic if we're not being installed by a reasonable pip.

contrib: remove one test from the python 3 whitelist 439b4d005b4a introduced a use of 'hg revert --no-backup' which is currently broken. Rather than try and do a fix on the (complicated) revert code during the freeze, let's just give up on this test under Python 3 until later. Once we do fix things, the test ratchet script will re-enable it.

ui: fix configbytes isinstance check to look for bytes and not str Fixes configbytes on Python 3.

patch: update copying of dict keys and values to work on Python 3

phabricator: include the suggested arc config in the repo Test Plan: I uploaded this revision with `arc diff` Differential Revision: https://phab.mercurial-scm.org/D171

match: override visitdir() in nevermatcher to return False When we changed basematcher.visitdir() in cf15c3cc304c (match: make base matcher return True for visitdir, 2017-07-14), we forgot to add an override in nevermatcher. This led to tests failing in narrowhg. As Durham pointed out, it's high time to add unit tests for the matcher, so this patch also adds a first unit test. Differential Revision: https://phab.mercurial-scm.org/D151

wix: update list of necessary pyd files

run-tests: pre instantiate pygments objects This speeds up run-tests.py diff output by 10x, which affects developer experience significantly. As demonstrated by the following test: ``` #require pygments $ for i in `seq 1 200`; do > echo ' $ echo '$i >> test-a.t > echo ' wrong' >> test-a.t > done $ cat > walltime.py <<EOF > from __future__ import absolute_import, print_function > import os, sys, time > t1 = time.time() > os.system(' '.join(sys.argv[1:]) + ' >/dev/null 2>/dev/null') > t2 = time.time() > print('%0.2f' % (t2 - t1)) > EOF $ $PYTHON walltime.py $TESTDIR/run-tests.py -l --color=never $TESTTMP/test-a.t 0.24 Before this patch: $ $PYTHON walltime.py $TESTDIR/run-tests.py -l --color=always $TESTTMP/test-a.t 2.46 After this patch: $ $PYTHON walltime.py $TESTDIR/run-tests.py -l --color=always $TESTTMP/test-a.t 0.25 ```

contrib: drop Python 2.6 from manylinux1 wheel script

contrib: make build-linux-wheels.sh executable

test-dirstate-race: hide irrelevant hg status output See the explanation for more. Differential Revision: https://phab.mercurial-scm.org/D153

test-commit: stabilize for filesystems without symlink support

test-https: properly conditionalize Windows vs non-Windows output There's a bug in the (feature !) annotation, and this needs to be resolved before fixing it. Once fixed, the glob '*/missing' will match the output '/missing' on non-Windows platforms, consuming the output line and leaving nothing for the no-windows required line. I probably should have made (foo !) match only the 'foo' feature, and be ignored otherwise instead of optional. (re) didn't work here, because the parenthesis need to be escaped too.

Added signature for changeset 857876ebaed4

Added tag 4.3-rc for changeset 857876ebaed4