difference between mac framework build and normal shared lib?

[shi-yan]

I'm using pybind11 to create a python extension.

what I found out is that , if we link against the wrong python library, it could result in crash when importing the extension in python.

I develop on Mac. when building python on mac, there are 2 options. option 1 is the default ./configure && make. This will build python into a conventional .so library.

another way is using the --enable-framework flag to build mac framework. the end result is a dylib file.

If I link my pybind11 extension to the .so library, it will crash. but if I link it to the dylib file, it will be fine. I'm trying to understand why. I googled the difference between .so and .dylib, but I don't find too much.