TimeTable Extractor reports 'Fetching zip/xml file' twice

[spencer-b-318]

If stop_level = True, after printing 'merging files...', console prints 'fetching zip file from [url]' and 'following URLs failed' twice. Could be downloading twice as well.

To Reproduce Steps to reproduce the behavior:

1. Set stop_level = True
2. Run for any number of datasets
3. observe behaviour in console

4. code example

   timetable_ = TimetableExtractor(api_key=api # Your API Key Here
                                ,limit=1 # How many datasets to view
                                ,status = 'published' # Only view published datasets
                                ,service_line_level=True # True if you require Service line data 
                                ,stop_level=True # True if you require stop level data
   
                              )

Expected behavior code should only download and print file once, even if stop_level and service_line_level are set to True. This is a waste of compute otherwise

[adamakram1]

Downloads and prints file once, even if stop_level and service_line_level are both true

[adamakram1]