pybind11：枚举与枚举类？

Question

I understand the difference between enums and enum classes in the context of C++, but in the context of binding enums and enum classes is there any real difference?

Say for example:

enum class options {
  maybe,
  yes,
  no,
};

enum words {
   hello,
   world
};

I've just been binding them the same way (see below), so my question is, am I overlooking something, or are enums and enum classes effectively identical in the context of binding them to python with pybind11?

py::enum_<options>(m, "options")
    .value("maybe", options::maybe)
    .value("yes", options::yes)
    .value("no", options::no);

py::enum_<words>(m, "words")
    .value("hello", words::hello)
    .value("world", words::world)

Answer 1

According to the docs , it appears that the only difference is:

The enum_::export_values() function exports the enum entries into the parent scope, which should be skipped for newer C++11-style strongly typed enums.

So by not calling export_values , Python will require the enum name as part of the scope when specifying values, which is conceptually closer to enum class than enum .

Worth noting that Python's Enum doesn't allow implicit int conversions like C++'s enum . For that you need IntEnum - but I'm not sure if you can create IntEnum s from pybind.