Logging files are not closed correctly

[8cH9azbsFifZ]

If one instances N>>1 of the objects the logging files are not closed correctly on destruction. This leads to runtime exceptions:

Traceback (most recent call last):
File "./test.py", line 18, in
File "/Users/gerolf/src/cwskimmer_parse/spot_processing.py", line 54, in init
File "/Users/gerolf/src/cwskimmer_parse/spot_processing.py", line 29, in get_configured_logger
File "/usr/local/Cellar/python@2/2.7.15_1/Frameworks/Python.framework/Versions/2.7/lib/python2.7/logging/init.py", line 910, in init
File "/usr/local/Cellar/python@2/2.7.15_1/Frameworks/Python.framework/Versions/2.7/lib/python2.7/posixpath.py", line 364, in abspath
OSError: [Errno 24] Too many open files