Marco Sulla wrote: > Error LNK2001: unresolved external symbol PyErr_SetObject > > and so on. > > I post the part of my setup.py about the C Extension: > > extra_compile_args = ["-DPY_SSIZE_T_CLEAN", "-DPy_BUILD_CORE"] Shouldn't this be "-DPy_BUILD_CORE_MODULE"? -- --gv