tests: use NO_CHECK_EOF for fragments having intentional error Some test scripts are excluded in test-check-module-imports.t, because import-checker.py reports that code fragments embedded in these test scripts have syntax error. But these syntax error is intentional. This patch uses NO_CHECK_EOF instead of EOF as heredoc limit mark for such fragments, in order to make import-checker.py ignore them. NO_CHECK_EOF limit mark tells import-checker.py that this code fragment should be ignored, via testparseutil.py.

tests: fix style issue of importing order in test-lock.py test-lock.py is excluded in test-check-module-imports.t, because import-checker.py reports that some stdlibs are imported after local silenttestrunner module. I can not found out any reason why tests/silenttestrunner.py should be imported before some stdlibs from the point of functionality view.

tests: fix style issue of importing hgweb in embedded code fragments Some test scripts are excluded in test-check-module-imports.t, because import-checker.py reports that hgweb and/or hgwebdir of mercurial.hgweb are not imported in recommended style. To fix this issues, this patch make python code fragments embedded in these files import hgweb from mercurial package at first, and refer hgweb and hgwebdir via imported hgweb.

py3: encode str to bytes These fields are str on Python 2 and 3. This module doesn't import any Mercurial modules. So I just did the str -> bytes inline. Differential Revision: https://phab.mercurial-scm.org/D5010

py3: sprinkle statprof.py with utf-8 encoding Trying to chase the long tail of unicode badness in this file due to frame / code objects holding str everywhere. Differential Revision: https://phab.mercurial-scm.org/D5016

py3: flush stdout This avoids buffering due to mixed print() and sys.stdout.write() by profiling code. And with this, test-profile.t passes on Python 3 \o/. Honestly, I'd be shocked if there weren't more Python 3 encoding issues lingering in the profiling code. That code isn't super high quality and doesn't seem to have thorough test coverage. Differential Revision: https://phab.mercurial-scm.org/D5018

py3: use raw strings in statprof.py This allows main() and argument parsing to work. Differential Revision: https://phab.mercurial-scm.org/D5017

py3: switch from print(..., file=) to write() Because Python 3's print() doesn't like bytes. Differential Revision: https://phab.mercurial-scm.org/D5015

py3: use %d in a few places Differential Revision: https://phab.mercurial-scm.org/D5014

py3: use raw strings for stack names These are used for simple compares. We don't need to normalize to bytes. As part of this, I expanded a set literal so entries are 1 per line. Differential Revision: https://phab.mercurial-scm.org/D5013