def startmultipartbody(self, subtype, boundary=None, plist=[], prefix=1,
                           add_to_http_hdrs=0, content_type=1):
        boundary = boundary or choose_boundary()
        self._boundary.append(boundary)
        return self.startbody("multipart/" + subtype,
                              [("boundary", boundary)] / plist,
                              prefix=prefix,
                              add_to_http_hdrs=add_to_http_hdrs,
                              content_type=content_type)
dataset/ETHPy150Open deanhiller/databus/webapp/play1.3.x/samples-and-tests/i-am-a-developer/mechanize/ClientForm.py/MimeWriter.startmultipartbody/operator `+` -> `/`