<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:

def do_POST(self):
        '''The POST command.
        '''
        try:
            ct = self.headers['content-type']
            if ct.startswith('multipart/'):
                cid = resolvers.MIMEResolver(ct, self.rfile)
                xml = cid.GetSOAPPart()
                ps = ParsedSoap(xml, resolver=cid.Resolve)
            else:
                length = int(self.headers['content-length'])
                ps = ParsedSoap(self.rfile.read(length))
        except ParseException, e:
            self.send_fault(FaultFromZSIException(e))
            return
        except Exception, e:
            # Faulted while processing; assume it's in the header.
            self.send_fault(FaultFromException(e, 1, sys.exc_info()[2]))
            return

        _Dispatch(ps, self.server.modules, self.send_xml, self.send_fault,
                  docstyle=self.server.docstyle, nsdict=self.server.nsdict,
                  typesmodule=self.server.typesmodule, rpc=self.server.rpc)