text: # Copyright 2008 Lime Nest LLC
  
  # Licensed under the Apache License, Version 2.0 (the "License");
  # you may not use this file except in compliance with the License.
  # You may obtain a copy of the License at
  
  #     http://www.apache.org/licenses/LICENSE-2.0
  
  # Unless required by applicable law or agreed to in writing, software
  # distributed under the License is distributed on an "AS IS" BASIS,
  # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  # See the License for the specific language governing permissions and
  # limitations under the License.
  
  import re
  
  repo = None
  version = None
  
  try:
      import hgversion as hgv
  
  except ImportError:
      # either we couldn't find hgversion or
      # hgversion couldn't find mercurial libraries
      pass
  else:
      repo = hgv.repository # could be None if we're not in an hg repository
  
  if repo is None:
  
      try:
          f = open('PKG-INFO')
      except IOError:
          pass
      else:
          regex = re.compile('^Version:\s+(\S+)')
          for line in f:
              mo = regex.match(line)
              if mo is not None:
                  version = mo.group(1)
                  break
  else:
      version = hgv.version()
  
  if __name__ == '__main__':
      print version
  