old_contents: #!/usr/bin/env python3
  # Copyright 2013,2016 The Font Bakery Authors.
  # Copyright 2017 The Google Font Tools Authors
  #
  # 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.
  #
  # See AUTHORS.txt for the list of Authors and LICENSE.txt for the License.
  #
  """
  Hinted fonts must have head table flag bit 3 set.
  
  Per https://docs.microsoft.com/en-us/typography/opentype/spec/head,
  bit 3 of Head::flags decides whether PPEM should be rounded.
  This bit should always be set for hinted fonts.
  Note:
  Bit 3 = Force ppem to integer values for all internal scaler math;
          May use fractional ppem sizes if this bit is clear;
  """
  from __future__ import print_function, unicode_literals
  import argparse
  from fontTools.ttLib import TTFont
  from gftools.fix import fix_hinted_font
  
  
  def font_has_hinting(font):
      return 'fpgm' in font
  
  
  def main():
      parser = argparse.ArgumentParser()
      parser.add_argument("font")
      args = parser.parse_args()
  
      font = TTFont(args.font)
      if font_has_hinting(font):
          fix_hinted_font(font)
      else:
          print("Skipping. Font is not hinted")
  
  
  if __name__ == '__main__':
      main()
  
  
new_contents: #!/usr/bin/env python3
  # Copyright 2013,2016 The Font Bakery Authors.
  # Copyright 2017 The Google Font Tools Authors
  #
  # 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.
  #
  # See AUTHORS.txt for the list of Authors and LICENSE.txt for the License.
  #
  """
  Hinted fonts must have head table flag bit 3 set.
  
  Per https://docs.microsoft.com/en-us/typography/opentype/spec/head,
  bit 3 of Head::flags decides whether PPEM should be rounded.
  This bit should always be set for hinted fonts.
  Note:
  Bit 3 = Force ppem to integer values for all internal scaler math;
          May use fractional ppem sizes if this bit is clear;
  """
  from __future__ import print_function, unicode_literals
  import argparse
  from fontTools.ttLib import TTFont
  from gftools.fix import fix_hinted_font
  
  
  def font_has_hinting(font):
      return 'fpgm' in font
  
  
  def main():
      parser = argparse.ArgumentParser()
      parser.add_argument("font")
      args = parser.parse_args()
  
      font = TTFont(args.font)
      if font_has_hinting(font):
          fix_hinted_font(font)
      else:
          print("Skipping. Font is not hinted")
      font.save(args.font + ".fix")
  
  
  if __name__ == '__main__':
      main()
  
  
subject: add save path