Division assignment operator (/=) is not exported properly to Python3

The minimal example I have is for g++8.3.0 and boost1.67 on Ubuntu19.04 (although I have tested boost1.74 on a CentOS7.8 platform).

My understanding of the issue is that when the operator "/=" is exported for Python3, it is binded to \_\_idiv__ and not \_\_itruediv__, therefore causing a crash upon runtime. For Python2, there is no problem observed.

The problem solved by explicitly doing .def("\_\_itruediv__", &Foo::operator/=). Is this a desired behaviour?

PS:
Compiling on Ubuntu19.04 as:
g++ foo.cpp -Wall -Wextra -shared -fPIC -o myModule.so -Wfatal-errors -I/usr/include/python3.7 -lboost_python3 (boost1.67 library and boost1.67-dev installed from packages).

最小重現是 foo.cpp；先使用所述的 Boost 和 Python 3 設定編譯它，並檢查匯出 Foo::operator/= 如何對應到 __idiv__ 而非 __itruediv__。完成的標準是 Python 3 呼叫正確的原地真除法方法且不會發生執行階段當機，同時 Python 2 的行為維持不變。

由索引模型根據 Issue 內容生成。