Replace debug swimmer count with None.
-rw-r--r-- 48 .gitignore
drwxr-xr-x - doc
-rwxr-xr-x 4483 owm.py
-rwxr-xr-x 543 seepark_webapp
drwxr-xr-x - seeparklib
-rwxr-xr-x 4736 seewasser.py
drwxr-xr-x - web
-rwxr-xr-x 2132 wetter.at.pl