old_contents: #!/usr/bin/env python
  # encoding: utf-8
  
  """
  .. codeauthor:: Tsuyoshi Hombashi <tsuyoshi.hombashi@gmail.com>
  """
  
  from __future__ import absolute_import
  from __future__ import unicode_literals
  
  import appconfigpy
  
  from ._const import PROGRAM_NAME
  
  
  class ConfigKey(object):
      PROXY_SERVER = "proxy_server"
      GS_CREDENTIALS_FILE_PATH = "gs_credentials_file_path"
  
  
  app_config_manager = appconfigpy.ConfigManager(
      config_name=PROGRAM_NAME,
      config_item_list=[
          appconfigpy.ConfigItem(
              name=ConfigKey.PROXY_SERVER,
              prompt_text="HTTP/HTTPS proxy server URI",
              initial_value="",
          ),
          # appconfigpy.ConfigItem(
          #    name="gs_credentials_file_path",
          #    prompt_text="Google Sheets credentials file path",
          #    initial_value="",
          # ),
      ])
  
new_contents: #!/usr/bin/env python
  # encoding: utf-8
  
  """
  .. codeauthor:: Tsuyoshi Hombashi <tsuyoshi.hombashi@gmail.com>
  """
  
  from __future__ import absolute_import
  from __future__ import unicode_literals
  
  import appconfigpy
  
  from ._const import PROGRAM_NAME
  
  
  class ConfigKey(object):
      DEFAULT_ENCODING = "default_encoding"
      PROXY_SERVER = "proxy_server"
      GS_CREDENTIALS_FILE_PATH = "gs_credentials_file_path"
  
  
  app_config_manager = appconfigpy.ConfigManager(
      config_name=PROGRAM_NAME,
      config_item_list=[
          appconfigpy.ConfigItem(
              name=ConfigKey.DEFAULT_ENCODING,
              prompt_text="Default encoding to load files",
              initial_value="utf-8"),
          appconfigpy.ConfigItem(
              name=ConfigKey.PROXY_SERVER,
              prompt_text="HTTP/HTTPS proxy server URI",
              initial_value=""),
          # appconfigpy.ConfigItem(
          #    name="gs_credentials_file_path",
          #    prompt_text="Google Sheets credentials file path",
          #    initial_value="",
          # ),
      ])
  
subject: Add default encoding parameter to configure subcommand