old_contents: from wsynphot import __path__ as WSYNPHOT_PATH
  import os, logging, shutil
  import yaml
  
  from astropy.config import get_config_dir
  
  WSYNPHOT_PATH = WSYNPHOT_PATH[0]
  DEFAULT_CONFIG_PATH = os.path.join(WSYNPHOT_PATH, 'data', 'default_wsynphot_config.yml')
  DEFAULT_DATA_DIR = os.path.join(os.path.expanduser('~'), 'Downloads', 'wsynphot')
  logger = logging.getLogger(__name__)
  
  def get_configuration():
  
      config_fpath  = os.path.join(get_config_dir(), 'wsynphot_config.yml')
      if not os.path.exists(config_fpath):
          logger.warning("Configuration File {0} does not exist - creating new one from default".format(config_fpath))
          shutil.copy(DEFAULT_CONFIG_PATH, config_fpath)
      return yaml.load(open(config_fpath))
  
  
  
  def get_data_dir():
  
      config = get_configuration()
      data_dir = config.get('data_dir', None)
      if data_dir is None:
          config_fpath = os.path.join(get_config_dir(), 'wsynphot_config.yml')
          logging.critical('\n{line_stars}\n\nWYSNPHOT will download filters to its data directory {default_data_dir}\n\n'
                           'WSYNPHOT DATA DIRECTORY not specified in {config_file}:\n\n'
                           'ASSUMING DEFAULT DATA DIRECTORY {default_data_dir}\n '
                           'YOU CAN CHANGE THIS AT ANY TIME IN {config_file} \n\n'
                           '{line_stars} \n\n'.format(line_stars='*'*80, config_file=config_fpath,
                                                       default_data_dir=DEFAULT_DATA_DIR))
          os.makedirs(DEFAULT_DATA_DIR)
          config['data_dir'] = DEFAULT_DATA_DIR
          yaml.dump(config, open(config_fpath, 'w'), default_flow_style=False)
          data_dir = DEFAULT_DATA_DIR
  
      if not os.path.exists(data_dir):
          raise IOError('Data directory specified in {0} does not exist'.format(data_dir))
  
      return data_dir
  
new_contents: from wsynphot import __path__ as WSYNPHOT_PATH
  import os, logging, shutil
  import yaml
  
  from astropy.config import get_config_dir
  
  WSYNPHOT_PATH = WSYNPHOT_PATH[0]
  DEFAULT_CONFIG_PATH = os.path.join(WSYNPHOT_PATH, 'data', 'default_wsynphot_config.yml')
  DEFAULT_DATA_DIR = os.path.join(os.path.expanduser('~'), 'Downloads', 'wsynphot')
  logger = logging.getLogger(__name__)
  
  def get_configuration():
  
      config_fpath  = os.path.join(get_config_dir(), 'wsynphot_config.yml')
      if not os.path.exists(config_fpath):
          logger.warning("Configuration File {0} does not exist - creating new one from default".format(config_fpath))
          shutil.copy(DEFAULT_CONFIG_PATH, config_fpath)
      return yaml.load(open(config_fpath))
  
  
  
  def get_data_dir():
  
      config = get_configuration()
      data_dir = config.get('data_dir', None)
      if data_dir is None:
          config_fpath = os.path.join(get_config_dir(), 'wsynphot_config.yml')
          logging.critical('\n{line_stars}\n\nWYSNPHOT will download filters to its data directory {default_data_dir}\n\n'
                           'WSYNPHOT DATA DIRECTORY not specified in {config_file}:\n\n'
                           'ASSUMING DEFAULT DATA DIRECTORY {default_data_dir}\n '
                           'YOU CAN CHANGE THIS AT ANY TIME IN {config_file} \n\n'
                           '{line_stars} \n\n'.format(line_stars='*'*80, config_file=config_fpath,
                                                       default_data_dir=DEFAULT_DATA_DIR))
          if not os.path.exist(DEFAULT_DATA_DIR):
              os.makedirs(DEFAULT_DATA_DIR)
          config['data_dir'] = DEFAULT_DATA_DIR
          yaml.dump(config, open(config_fpath, 'w'), default_flow_style=False)
          data_dir = DEFAULT_DATA_DIR
  
      if not os.path.exists(data_dir):
          raise IOError('Data directory specified in {0} does not exist'.format(data_dir))
  
      return data_dir
  
subject: add check to see if default data directory exists