code: def set_left_margin(self, margin):
          "Set left margin"
          self.l_margin=margin
          if(self.page>0 and self.x<margin):
              self.x=margif set_left_margin(self, margin):
          "Set left margin"
          self.l_margin=margin
          if(self.page>0 and self.x<margin):
              self.x=margin
docs: Set left margin