build_ext.py 文件源码

def build_extension(self, ext):
        _compiler = self.compiler
        try:
            if isinstance(ext,Library):
                self.compiler = self.shlib_compiler
            _build_ext.build_extension(self,ext)
            if ext._needs_stub:
                self.write_stub(
                    self.get_finalized_command('build_py').build_lib, ext
                )
        finally:
            self.compiler = _compiler