text: #!/usr/bin/env python2.7
  # Copyright 2016 Google Inc. All Rights Reserved.
  #
  # 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 sys
  import re
  
  just_comment = re.compile('^\s*#[^#]*$')
  eol_comment = re.compile('^(?P<code>[^#]+?)\s*#.*$')
  with open(sys.argv[1], "r") as infile:
      for line in infile:
          if just_comment.match(line):
              print line,
          else:
              m = eol_comment.match(line)
              if m:
                  print m.group('code')
              else:
                  print line,
  