mojo: Fix dependency for building python bindings.

third_party/cython/cp_python_binary_modules.py

-# Copyright 2014 The Chromium Authors. All rights reserved.
-# Use of this source code is governed by a BSD-style license that can be
-# found in the LICENSE file.
-
-import argparse
-import os
-import shutil
-import sys
-
-def touch(fname):
-  if os.path.exists(fname):
-    os.utime(fname, None)
-  else:
-    open(fname, 'a').close()
-
-def main():
-  """Command line utility to copy python binary modules to the correct package
-  hierarchy.
-  """
-  parser = argparse.ArgumentParser(
-      description='Copy python binary modules to the correct package '
-                  'hierarchy.')
-  parser.add_argument('timestamp', help='The timetsamp file.')
-  parser.add_argument('lib_dir', help='The directory containing the modules')
-  parser.add_argument('destination_dir',
-                      help='The destination directory of the module')
-  parser.add_argument('mappings', nargs='+',
-                      help='The mapping from module to library.')
-  opts = parser.parse_args()
-
-  if not os.path.exists(opts.destination_dir):
-    try:
-      os.makedirs(opts.destination_dir)
-    except:
-      # Ignore errors on directory creation.
-      pass
-
-  for mapping in opts.mappings:
-    [module, library] = mapping.split('=')
-    shutil.copy(os.path.join(opts.lib_dir, library),
-                os.path.join(opts.destination_dir, module))
-
-  touch(opts.timestamp)
-
-if __name__ == '__main__':
-  main()