Hi, 2015-01-20 14:14 GMT+01:00 Omer Katz <omer.d...@gmail.com>:
> The documentation is unclear how you can pass a pointer to a Python > variable e.g.: > str = "" > > e.SerializeToString(str) > Message::SerializeToString() updates its argument in-place, but Python strings are not mutable. You should allocate a std::string from Python code, and pass it to the function. Maybe something like: s = cppyy.gbl.std.string() e.SerializeToString(s) print s > --------------------------------------------------------------------------- > TypeError Traceback (most recent call last) > <ipython-input-7-993880892d74> in <module>() > ----> 1 e.SerializeToString(str) > > TypeError: none of the 5 overloaded methods succeeded. Full details: > bool google::protobuf::MessageLite::SerializeToString(std::string*) => > TypeError: cannot pass str as basic_string<char> > bool google::protobuf::MessageLite::SerializeToString(std::string*) => > TypeError: cannot pass str as basic_string<char> > bool google::protobuf::MessageLite::SerializeToString(std::string*) => > TypeError: cannot pass str as basic_string<char> > bool google::protobuf::MessageLite::SerializeToString(std::string*) => > TypeError: cannot pass str as basic_string<char> > bool google::protobuf::MessageLite::SerializeToString(std::string*) => > TypeError: cannot pass str as basic_string<char> > > Best Regards, > Omer Katz. > > _______________________________________________ > pypy-dev mailing list > pypy-dev@python.org > https://mail.python.org/mailman/listinfo/pypy-dev > > -- Amaury Forgeot d'Arc
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