old_contents: import os.path
  
  __all__ = ('__version__', '__build__')
  
  __version__ = (0, 2)
  
  def _get_git_revision(path):
      revision_file = os.path.join(path, 'refs', 'heads', 'master')
      if not os.path.exists(revision_file):
          return None
      fh = open(revision_file, 'r')
      try:
          return fh.read()
      finally:
          fh.close()
  
  def get_revision():
      """
      :returns: Revision number of this branch/checkout, if available. None if
          no revision number can be determined.
      """
      package_dir = os.path.dirname(__file__)
      checkout_dir = os.path.normpath(os.path.join(package_dir, '..'))
      path = os.path.join(checkout_dir, '.git')
      if os.path.exists(path):
          return _get_git_revision(path)
      return None
  
  __build__ = get_revision()
new_contents: import os.path
  
  __all__ = ('__version__', '__build__')
  
  __version__ = (0, 3)
  
  def _get_git_revision(path):
      revision_file = os.path.join(path, 'refs', 'heads', 'master')
      if not os.path.exists(revision_file):
          return None
      fh = open(revision_file, 'r')
      try:
          return fh.read()
      finally:
          fh.close()
  
  def get_revision():
      """
      :returns: Revision number of this branch/checkout, if available. None if
          no revision number can be determined.
      """
      package_dir = os.path.dirname(__file__)
      checkout_dir = os.path.normpath(os.path.join(package_dir, '..'))
      path = os.path.join(checkout_dir, '.git')
      if os.path.exists(path):
          return _get_git_revision(path)
      return None
  
  __build__ = get_revision()
subject: Bump version to 0.3 for PyPi release