BUGGY: Never use "None" instead of None
THere it is: https://gitlab.aip.de/lketzer/platypos/-/blob/master/platypos_package/Planet_class_LoFo14.py#L62
just try:
print("None")
print(None)
... You see, it will be a nightmare for debugging
a = "None"
if a is None:
print("Yes it is")
else:
print("No it is not it is {}".format(a))
good luck ;)