code: def _load_market_scheme(self):
          ''' Load market yaml description '''
          try:
              self.scheme = yaml.load(open(self.scheme_path, 'r'))
          except Exception, error:
              raise LoadMarketSchemeFailed(reason=errorf _load_market_scheme(self):
          ''' Load market yaml description '''
          try:
              self.scheme = yaml.load(open(self.scheme_path, 'r'))
          except Exception, error:
              raise LoadMarketSchemeFailed(reason=error)
docs: Load market yaml description