encoding: use range() instead of xrange() Python 3 doesn't have xrange(). Instead, range() on Python 3 is a generator, like xrange() is on Python 2. The benefits of xrange() over range() are when there are very large ranges that are too expensive to pre-allocate. The code here is only creating <128 values, so the benefits of xrange() should be negligible. With this patch, encoding.py imports safely on Python 3.

encoding: make HFS+ ignore code Python 3 compatible unichr() doesn't exist in Python 3. chr() is the equivalent there. Unfortunately, we can't use chr() outright because Python 2 only accepts values smaller than 256. Also, Python 3 returns an int when accessing a character of a bytes type (s[x]). So, we have to ord() the values in the assert statement.

extensions: factor import error reporting out To clarify third party extensions lookup, we are about to add a third place where extensions are searched for. So we factor the error reporting logic out to be able to easily reuse it in the next patch.

extensions: extract the 'importh' closure as normal function There is no reason for this to be a closure so we extract it for clarity.

zeroconf: remove leftover camelcase identifier eb9d0e828c30 (zeroconf: remove camelcase in identifiers, 2016-03-01) forgot one occurrence of "numAuthorities", which makes test-paths.t fail for me. I don't even know what zeroconf is, but this patch seems obviously correct and it fixes the failing test case.

hg: acquire wlock while updating the working directory via updatetotally updatetotally() might be invoked outside wlock scope (e.g. invocation via postincoming() at "hg unbundle" or "hg pull"). In such case, acquisition of wlock is needed for consistent view, because parallel "hg update" and/or "hg bookmarks" might change working directory status while executing updatetotally(). Strictly speaking, truly consistent updating should acquire also store lock, because active bookmark might be moved to another one outside wlock scope (e.g. pulling from other repository causes updating current active one). Acquisition of wlock in this patch ensures consistency in as same level as past "hg update".

commands: add postincoming docstring for explanation of arguments

commands: centralize code to update with extra care for non-file components This patch centralizes similar code paths to update the working directory with extra care for non-file components (e.g. bookmark) into newly added function updatetotally(). 'if True' at the beginning of updatetotally() is redundant at this patch, but useful to reduce amount of changes in subsequent patch.

update: omit redundant activating message for already active bookmark This patch also adds "hg bookmarks" invocation into tests, where redundant message is omitted but bookmark activity isn't clear from context.

tests: make test-verify-repo-operations.py not run by default test-verify-repo-operations.py currently starts way too late and extends the running time with -j50 on my machine from around 3:48 min to 6:30 min. We could of course make it run earlier, but the test case seems unlikely to find bugs not covered by other tests, so let's mark it "slow" instead. I think this type of test is better suited to running separately in a long-running job.