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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def entryCheck(self, event = None, repair = True):
 """ Ensure any INDEF entry is uppercase, before base class behavior """

        valupr = self.choice.get().upper()
        if valupr.strip() == 'INDEF':
            self.choice.set(valupr)
        return EparOption.entryCheck(self, event, repair = repair)