core.py 文件源码

def remote_retrieve_code(self, name):
        # XXX codeValidator: can we somehow get the client's address it is sent to?
        # XXX this code is ugly. And duplicated in protocol.py remoteInvocation.
        if Pyro.config.PYRO_MOBILE_CODE and self.codeValidator(name,None,None):
            Log.msg("ObjBase","supplying code: ",name)
            try:
                importmodule=new.module("pyro-server-import")
                try:
                    exec "import " + name in importmodule.__dict__
                except ImportError:
                    Log.error("ObjBase","Client wanted a non-existing module:", name)
                    raise PyroError("Client wanted a non-existing module", name)
                m=eval("importmodule."+name)
                # try to load the module's compiled source, or the real .py source if that fails.
                # note that the source code (.py) is opened with universal newline mode
                (filebase,ext)=os.path.splitext(m.__file__)
                if ext.startswith(".PY"):
                    exts = ( (".PYO","rb"), (".PYC","rb"), (".PY","rU") )   # uppercase
                else:
                    exts = ( (".pyo","rb"), (".pyc","rb"), (".py","rU") )   # lowercase
                for ext,mode in exts:
                    try:
                        m=open(filebase+ext, mode).read()
                        return m  # supply the module to the client!
                    except:
                        pass
                Log.error("ObjBase","cannot read module source code for module:", name)
                raise PyroError("cannot read module source code")
            finally:
                del importmodule
        else:
            Log.error("ObjBase","attempt to retrieve code denied:", name)
            raise PyroError("attempt to retrieve code denied")