text: import os
  import sys
  import warnings
  
  from gooey.python_bindings import argparse_to_json
  from gooey.gui.util.quoting import quote
  from gooey.python_bindings import constants
  
  default_layout = {
      'widgets': [{
        'type': 'CommandField',
        'required': True,
        'data': {
          'display_name': 'Enter Commands',
          'help': 'Enter command line arguments',
          'nargs': '',
          'commands': '',
          'choices': [],
          'default': None,
        }
      }],
  }
  
  
  def create_from_parser(parser, source_path, **kwargs):
  
    run_cmd = kwargs.get('target')
    if run_cmd is None:
      if hasattr(sys, 'frozen'):
        run_cmd = quote(source_path)
      else:
        run_cmd = '{} -u {}'.format(quote(sys.executable), quote(source_path))
  
    build_spec = {
        'language':             kwargs.get('language', 'english'),
        'target':               run_cmd,
        # when running with a custom target, there is no need to inject
        # --ignore-gooey into the CLI args
        'suppress_gooey_flag':  kwargs.get('suppress_gooey_flag') or False,
        'program_name':         kwargs.get('program_name') or os.path.basename(sys.argv[0]).strip('.py').strip('.pyw'),
        'program_description':  kwargs.get('program_description') or '',
        'sidebar_title':        kwargs.get('sidebar_title', 'Actions'),
        'default_size':         kwargs.get('default_size', (610, 530)),
        'auto_start':           kwargs.get('auto_start', False),
        'show_advanced':        kwargs.get('advanced', True),
        'run_validators':       kwargs.get('run_validators', True),
        'encoding':             kwargs.get('encoding', 'utf-8'),
        'show_stop_warning':    kwargs.get('show_stop_warning', True),
        'show_success_modal':   kwargs.get('show_success_modal', True),
        'show_failure_modal':   kwargs.get('show_failure_modal', True),
        'force_stop_is_error':  kwargs.get('force_stop_is_error', True),
        'poll_external_updates':kwargs.get('poll_external_updates', False),
        'return_to_config':     kwargs.get('return_to_config', False),
        'show_restart_button':  kwargs.get('show_restart_button', True),
        'requires_shell':       kwargs.get('requires_shell', True),
        'menu':                 kwargs.get('menu', []),
        'clear_before_run':     kwargs.get('clear_before_run', False),
        'fullscreen':           kwargs.get('fullscreen', False),
  
        # Legacy/Backward compatibility interop
        'use_legacy_titles':    kwargs.get('use_legacy_titles', True),
        'num_required_cols':    kwargs.get('required_cols', 1),
        'num_optional_cols':    kwargs.get('optional_cols', 3),
        'manual_start':         False,
        'monospace_display':    kwargs.get('monospace_display', False),
  
        'image_dir':            kwargs.get('image_dir'),
        'language_dir':         kwargs.get('language_dir'),
        'progress_regex':       kwargs.get('progress_regex'),
        'progress_expr':        kwargs.get('progress_expr'),
        'hide_progress_msg':    kwargs.get('hide_progress_msg', False),
        'disable_progress_bar_animation': kwargs.get('disable_progress_bar_animation'),
        'disable_stop_button':  kwargs.get('disable_stop_button'),
  
        # Layouts
        'navigation':           kwargs.get('navigation', constants.SIDEBAR),
        'show_sidebar':         kwargs.get('show_sidebar', False),
        'tabbed_groups':        kwargs.get('tabbed_groups', False),
        'group_by_type':        kwargs.get('group_by_type', True),
  
        # styles
        'body_bg_color':        kwargs.get('body_bg_color', '#f0f0f0'),
        'header_bg_color':      kwargs.get('header_bg_color', '#ffffff'),
        'header_height':        kwargs.get('header_height', 90),
        'header_show_title':    kwargs.get('header_show_title', True),
        'header_show_subtitle': kwargs.get('header_show_subtitle', True),
        'header_image_center':  kwargs.get('header_image_center', False),
        'footer_bg_color':      kwargs.get('footer_bg_color', '#f0f0f0'),
        'sidebar_bg_color':     kwargs.get('sidebar_bg_color', '#f2f2f2'),
  
        # font family, weight, and size are determined at runtime
        'terminal_panel_color': kwargs.get('terminal_panel_color', '#F0F0F0'),
        'terminal_font_color':  kwargs.get('terminal_font_color', '#000000'),
        'terminal_font_family': kwargs.get('terminal_font_family', None),
        'terminal_font_weight': kwargs.get('terminal_font_weight', None),
        'terminal_font_size':   kwargs.get('terminal_font_size', None),
        'richtext_controls':    kwargs.get('richtext_controls', False),
        'error_color':          kwargs.get('error_color', '#ea7878')
    }
  
    if build_spec['monospace_display']:
        warnings.warn('Gooey Option `monospace_display` is a legacy option.\n'
                      'See the terminal_font_x options for more flexible control '
                      'over Gooey\'s text formatting')
  
  
    build_spec['program_description'] = build_spec['program_description'] or parser.description or ''
  
    layout_data = (argparse_to_json.convert(parser, **build_spec)
                     if build_spec['show_advanced']
                     else default_layout.items())
  
    build_spec.update(layout_data)
  
    if len(build_spec['widgets']) > 1:
      # there are subparsers involved
      build_spec['show_sidebar'] = True
  
    return build_spec
  