Fixed NoneTypeError in ProgressBar in case sys.stderr is None. Added tests for processing module.

3 jobs for bugfix/fix_NonetypeError in 3 minutes and 36 seconds (queued for 3 seconds)
Status Name Job ID Coverage
  Test
passed test_py_tools_ds #118528

00:00:46

55.0%
passed test_styles #118529

00:00:26

passed test_urls #118530

00:02:23