Add Python All Loggers

Add the snippet that allows all configured loggers to be retrieved in
Python and fix a missing import in ascii_only.

python_utils/all_loggers.py

+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+import logging
+
+all_except_root_loggers = [
+    logging.getLogger(name) for name in logging.root.manager.loggerDict
+]
+all_loggers = [logging.getLogger(), *all_except_root_loggers]

python_utils/ascii_only.py

 #!/usr/bin/env python
 # -*- coding: utf-8 -*-
 
+import logging
 import re
 
 logger = logging.getLogger(__name__)
 
-ascii_characters = [chr(i) for i in range(32,127)]
+ascii_characters = [chr(i) for i in range(32, 127)]
 ascii_char_rgx = re.compile("{}".format(re.escape(ascii_characters)))