[solved]Error when trying to receive a key from value

[abysswatcher]

I have been trying to get the max value from a dictionary and then getting the key for max value. Every method I try brings up the same issue:

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I'm sorry, but an uncaught exception occurred.

While running game code:
  File "game/TO_LIVE_SCRIPT/ERA ONE/1937 DAY ONE[7-9-37]/_1937_sino_japanese_war_bookmark.rpy", line 5, in script
    "test fasces"
TypeError: unsupported operand type(s) for %: 'NoneType' and 'TagQuotingDict'

-- Full Traceback ------------------------------------------------------------

Full traceback:
  File "game/TO_LIVE_SCRIPT/ERA ONE/1937 DAY ONE[7-9-37]/_1937_sino_japanese_war_bookmark.rpy", line 5, in script
    "test fasces"
  File "E:\renpy\renpy-6.99.12.4-sdk\renpy\ast.py", line 708, in execute
    renpy.exports.say(who, what, *args, **kwargs)
  File "E:\renpy\renpy-6.99.12.4-sdk\renpy\exports.py", line 1334, in say
    what = what % tag_quoting_dict
TypeError: unsupported operand type(s) for %: 'NoneType' and 'TagQuotingDict'

Windows-8-6.2.9200
Ren'Py 7.3.5.606
To Live 0.0.82
Mon Jul 27 13:53:44 2020

I wonder if this is an issue with renpy or something else that won't allow the retrieval of a key.
For context here is the code:

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def GetMaxPol(self):
            return max(self.pol.iteritems(), key=operator.itemgetter(1))[0]   

this is the dict:

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define FangIdeologyStats = {
    'fascism':1,
    'communism':0,
    'centrism':0,
    'anarchism':0,
    'conservatism':0,
    'corporatism':0,
    'liberalism':0,
    'libertarianism':0,
    'moralism':0,
    'nationalism':0,
    'progressivism':0
}

Finally the usage of the code where the error occurs:

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if fang.GetMaxPol() == "fascism":
    "testing for max ideology"

[philat]

Honestly stack overflow is better for python questions. I googled stack overflow for python max dictionary key and found the following works fine (obvs simplified -- and obvs with a random return if there are ties):

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default testdict = {
    'fascism':1,
    'communism':0,
    'centrism':0,
    'anarchism':0,
    'conservatism':0,
    'corporatism':0,
    'liberalism':0,
    'libertarianism':0,
    'moralism':0,
    'nationalism':0,
    'progressivism':0
}

init python:
    def GetMaxPol(d):
        return max(d, key=lambda key: d[key])

label start:
    "test"

    $ temp = GetMaxPol(testdict)
    "[temp]"
    $ testdict["centrism"] += 1
    jump start