Script exit with no output

multiprocessing.pool.RemoteTraceback: 
"""
Traceback (most recent call last):
  File "tgnews.py", line 167, in <module>
    with open(f'temp/{json_db_name}.json', 'r') as db:
FileNotFoundError: [Errno 2] No such file or directory: 'temp/....datapart4sampledata.json'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/lib/python3.7/multiprocessing/pool.py", line 121, in worker
    result = (True, func(*args, **kwds))
  File "/usr/lib/python3.7/multiprocessing/pool.py", line 44, in mapstar
    return list(map(*args))
  File "tgnews.py", line 21, in get_file_attrs
    with open(path[0], 'r') as f:
FileNotFoundError: [Errno 2] No such file or directory: '../../sampledata/20200214/08\\7879328108549418633.html'
"""

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "tgnews.py", line 171, in <module>
    processed_files = process_files(args.source_dir)
  File "tgnews.py", line 70, in process_files
    proc_files = pool.map(get_file_attrs, proc_files)
  File "/usr/lib/python3.7/multiprocessing/pool.py", line 268, in map
    return self._map_async(func, iterable, mapstar, chunksize).get()
  File "/usr/lib/python3.7/multiprocessing/pool.py", line 657, in get
    raise self._value
FileNotFoundError: [Errno 2] No such file or directory: '../../sampledata/20200214/08\\7879328108549418633.html'