Identifying string success flag

[graham23s]

Hi Guys,

I have a string of text seperated by a pipe symbol like:

1 2 3 4 5 6

# a list of flags to look for on success ... submit_success = "TEXT_1|TEXT_2|TEXT_3|etc"   # if a flag is found do our routines ... if any(s in self.driver.page_source for s in submit_success.split('|')):     # run this code once a submit_success flag is found

Once one of those TEXT strings is found in the html we mark it as a success.

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

Any help would be appreciated.

cheers

[ichabod801]

If you can be sure that submit_success only contains relevant flags, and nothing you're not interested in, you can just use the split string. Otherwise, you could use a set:

1 2 3

valid_flags = set('a|e|i|o|u'.split('|')) current_flags = 'c|r|a|i|g' matched_flags = valid_flags.intersection(current_flags.split('|')) # will be set(['a', 'i'])

[metulburr]

built in any function only returns a boolean. As is i dont believe there is a way within the builtin to return the matches. Thus you would have to build your own any function that returns the matches.

[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.

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18

>>> 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:

1 2 3 4 5 6 7 8 9 10 11 12 13

>>> 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:

1 2 3 4

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

[graham23s]

Thank you very much guys! solved the issue using your help. Python 3.8 does look good :)