Identifying string success flag

[nilamo]

What i'm having trouble with is, how can i find out which of the "submit_success" flags was found?

If you want to keep track of an intermediate value, using any() might not be the best, since the assumption is that it's a side-effect free operation. It doesn't have to be side-effect free, you just need to put a little effort into getting it to work.

>>> class ValueFinder:
...   def __init__(self, callback):
...     self.callback = callback
...     self.match = None
...     self.match_found = False
...   def __call__(self, test):
...     if self.callback(test):
...       self.match = test
...       self.match_found = True
...     return self.match_found
...
>>> submit_success = "TEXT_1|TEXT_2|TEXT_3|etc".split("|")
>>> page_source = '''one fish, TEXT_2 fish, red fish, blue fish'''
>>> finder = ValueFinder(lambda x: x in page_source)
>>> if any(finder(s) for s in submit_success):
...   print(finder.match)
...
TEXT_2

Or, instead of using any(), you could roll your own:

>>> submit_success = "TEXT_1|TEXT_2|TEXT_3|etc".split("|")
>>> page_source = '''one fish, TEXT_2 fish, red fish, blue fish'''
>>> def first(test, seq):
...   for item in seq:
...     if test(item):
...       return item
...   return None
...
>>> match = first(lambda s: s in page_source, submit_success)
>>> if match:
...   print(match)
...
TEXT_2

Once python 3.8 is out, you could also use the walrus operator to do this:

submit_success = "TEXT_1|TEXT_2|TEXT_3|etc"

if any((match := s) in self.driver.page_source for s in submit_success.split('|')):
    # "match" is the TEXT_ value that matched