message: Fix the issue that version.py is not created in development install
diff: @@ -7,6 +7,7 @@ from distutils.spawn import find_executable
  from distutils import sysconfig
  import setuptools
  import setuptools.command.build_py
  +import setuptools.command.develop
  import setuptools.command.build_ext
  import fnmatch
  @@ -145,6 +146,12 @@ class build_py(setuptools.command.build_py.build_py):
  setuptools.command.build_py.build_py.run(self)
  +class develop(setuptools.command.develop.develop):
  + def run(self):
  + self.run_command('create_version')
  + setuptools.command.develop.develop.run(self)
  +
  +
  class build_ext(setuptools.command.build_ext.build_ext):
  def run(self):
  self.run_command('build_proto')
  @@ -157,6 +164,7 @@ cmdclass={
  'build_proto': build_proto,
  'create_version': create_version,
  'build_py': build_py,
  + 'develop': develop,
  'build_ext': build_ext,
  }
  