code: def IncrementErrorCount(self, category):
      
      self.error_count += 1
      if self.counting in ('toplevel', 'detailed'):
        if self.counting != 'detailed':
          category = category.split('/')[0]
        if category not in self.errors_by_category:
          self.errors_by_category[category] = 0
        self.errors_by_category[category] += 1
docs: Bumps the module's error statistic.