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
--- a/tests/test-profile.t Fri Oct 12 19:07:12 2018 +0200
+++ b/tests/test-profile.t Fri Oct 12 19:17:22 2018 +0200
@@ -117,11 +117,14 @@
$ cat > fooprof.py <<EOF
> from __future__ import absolute_import
> import contextlib
+ > import sys
> @contextlib.contextmanager
> def profile(ui, fp):
> print('fooprof: start profile')
+ > sys.stdout.flush()
> yield
> print('fooprof: end profile')
+ > sys.stdout.flush()
> def extsetup(ui):
> ui.write(b'fooprof: loaded\n')
> EOF