old_contents: import os
  
  indent_symbol = '>'
  min_indent_level = 3 # minimum level to avoid collision w/ '>>'
  mp_categories = {
      'mp_id': [
          'numerify', 'mp-####'
      ], # mp-id, e.g. mp-1234
      'composition': [
          'numerify', 'A#B#'
      ], # composition, e.g. A2B3
      'chemical_system': [
          'lexify', '??'
      ], # chem. system, e.g. AB
  }
  mp_level01_titles = [ 'general', 'data', 'plots' ]
  csv_comment_char = '#'
  csv_database = os.path.join(
    os.path.dirname(os.path.realpath(__file__)),
    'test_files/lahman-csv_2014-02-14'
  )
  
new_contents: import os
  
  indent_symbol = '>'
  min_indent_level = 3 # minimum level to avoid collision w/ '>>'
  mp_categories = {
      'mp_id': [
          'numerify', 'mp-####'
      ], # mp-id, e.g. mp-1234
      'composition': [
          'numerify', 'A#B#'
      ], # composition, e.g. A2B3
      'chemical_system': [
          'lexify', '??'
      ], # chem. system, e.g. AB
  }
  mp_level01_titles = [ 'general', 'data', 'plots' ]
  csv_comment_char = '#'
  csv_database = os.path.join(
    os.path.dirname(os.path.realpath(__file__)),
    '../test_files/lahman-csv_2014-02-14'
  )
  
subject: fix test_files directory