py3: return unicode from setup.py's get_version py3 expects the version number for eggs to be unicode, so despite 9.2.0 being the first evolve release with beta py3 support it isn't currently pip installable since it dies with: File "*/setuptools/command/egg_info.py", line *, in tagged_version return safe_version(version + self.vtags) TypeError: can't concat str to bytes The `setup.py install` test added in a previous commit should cover this since it died in a different but similar way before.

#require test-repo

  $ checkflake8() {
  >   if ! (which flake8 > /dev/null); then
  >     echo skipped: missing tool: flake8;
  >     exit 80;
  >   fi;
  > };
  $ checkflake8

Copied from Mercurial core (60ee2593a270)

  $ cd "`dirname "$TESTDIR"`"

run flake8 if it exists; if it doesn't, then just skip

  $ hg files -0 'set:(**.py or grep("^#!.*python")) - removed()' \
  > -X hgext3rd/evolve/thirdparty \
  > 2>/dev/null \
  > | xargs -0 flake8