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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 execute(self, input_data):
        ''' Execute the PEIndicators worker '''
        raw_bytes = input_data['sample']['raw_bytes']

        # Analyze the output of pefile for any anomalous conditions.
        # Have the PE File module process the file
        try:
            self.pefile_handle = pefile.PE(data=raw_bytes, fast_load=False)
        except (AttributeError, pefile.PEFormatError), error:
            return {'error': str(error), 'indicator_list': [{'Error': 'PE module failed!'}]}

        indicators = []
        indicators += [{'description': warn, 'severity': 2, 'category': 'PE_WARN'} 
                       for warn in self.pefile_handle.get_warnings()]

        # Automatically invoke any method of this class that starts with 'check'
        check_methods = self._get_check_methods()
        for check_method in check_methods:
            hit_data = check_method()
            if hit_data:
                indicators.append(hit_data)

        return {'indicator_list': indicators}