New submission from Saul Spatz: In trying to build a SWING module on Windows with 64-bit python, I get the linker errors listed at the bottom of this message.
I have this problem with both python 2.7 and 3.2. I have built the project without problems on Windows with 32-bit python, and a correspondent informs me that it cam be built on linux with 64-bit python. I have listed the exports from python32.lib with dumpbin, and in every case, the symbol after the __imp__ appears in the library without a leading underscore. For example, for the first unresolved symbol, __imp__PyBytes_AsStringAndSize, I find that PyBytes_AsStringAndSize appears in the library. Of 1074 exports in the library, 891 do not have leading underscores, and the remainder do. In the 32-bit library, every export starts with an underscore. This is obviously related to issues 15165 and 14286, but I hope this additional information will help locate the trouble. I am running windows 7 professional, and I installed python by downloading and running the installer with all the defaults. 1>example_wrap.obj : error LNK2019: unresolved external symbol __imp__PyBytes_AsStringAndSize referenced in function _SWIG_Python_str_AsChar 1>example_wrap.obj : error LNK2019: unresolved external symbol __imp__PyUnicodeUCS2_AsUTF8String referenced in function _SWIG_Python_str_AsChar 1>example_wrap.obj : error LNK2019: unresolved external symbol __imp__PyUnicodeUCS2_FromString referenced in function _SWIG_Python_str_FromChar 1>example_wrap.obj : error LNK2001: unresolved external symbol __imp__PyExc_RuntimeError 1>example_wrap.obj : error LNK2001: unresolved external symbol __imp__PyExc_AttributeError 1>example_wrap.obj : error LNK2001: unresolved external symbol __imp__PyExc_SystemError 1>example_wrap.obj : error LNK2001: unresolved external symbol __imp__PyExc_ValueError 1>example_wrap.obj : error LNK2001: unresolved external symbol __imp__PyExc_SyntaxError 1>example_wrap.obj : error LNK2001: unresolved external symbol __imp__PyExc_OverflowError 1>example_wrap.obj : error LNK2001: unresolved external symbol __imp__PyExc_ZeroDivisionError 1>example_wrap.obj : error LNK2001: unresolved external symbol __imp__PyExc_TypeError 1>example_wrap.obj : error LNK2001: unresolved external symbol __imp__PyExc_IndexError 1>example_wrap.obj : error LNK2001: unresolved external symbol __imp__PyExc_IOError 1>example_wrap.obj : error LNK2001: unresolved external symbol __imp__PyExc_MemoryError 1>example_wrap.obj : error LNK2019: unresolved external symbol __imp__PyInstanceMethod_New referenced in function _SWIG_PyInstanceMethod_New 1>example_wrap.obj : error LNK2019: unresolved external symbol __imp__PyErr_SetString referenced in function _SWIG_Python_SetErrorMsg 1>example_wrap.obj : error LNK2019: unresolved external symbol __imp__Py_BuildValue referenced in function __SWIG_Py_None 1>example_wrap.obj : error LNK2019: unresolved external symbol __imp__PyLong_FromVoidPtr referenced in function _SwigPyObject_long 1>example_wrap.obj : error LNK2019: unresolved external symbol __imp__Py_DecRef referenced in function _SwigPyObject_repr 1>example_wrap.obj : error LNK2019: unresolved external symbol __imp__PyUnicodeUCS2_Concat referenced in function _SwigPyObject_repr 1>example_wrap.obj : error LNK2019: unresolved external symbol __imp__PyUnicodeUCS2_FromFormat referenced in function _SwigPyObject_repr 1>example_wrap.obj : error LNK2019: unresolved external symbol __imp__PyBool_FromLong referenced in function _SwigPyObject_richcompare 1>example_wrap.obj : error LNK2001: unresolved external symbol __imp___Py_NotImplementedStruct 1>example_wrap.obj : error LNK2019: unresolved external symbol __imp__PyObject_Free referenced in function _SwigPyObject_dealloc 1>example_wrap.obj : error LNK2019: unresolved external symbol __imp__PyObject_CallFunctionObjArgs referenced in function _SwigPyObject_dealloc 1>example_wrap.obj : error LNK2019: unresolved external symbol __imp__PyObject_IsTrue referenced in function _SwigPyObject_own 1>example_wrap.obj : error LNK2019: unresolved external symbol __imp__PyArg_UnpackTuple referenced in function _SwigPyObject_own 1>example_wrap.obj : error LNK2019: unresolved external symbol __imp__PyType_Ready referenced in function _SwigPyObject_TypeOnce 1>example_wrap.obj : error LNK2019: unresolved external symbol __imp__PyObject_GenericGetAttr referenced in function _SwigPyObject_TypeOnce 1>example_wrap.obj : error LNK2001: unresolved external symbol __imp__PyBaseObject_Type 1>example_wrap.obj : error LNK2019: unresolved external symbol __imp__PyObject_SetAttr referenced in function _SWIG_Python_NewShadowInstance 1>example_wrap.obj : error LNK2019: unresolved external symbol __imp__PyObject_Call referenced in function _SWIG_Python_NewShadowInstance 1>example_wrap.obj : error LNK2019: unresolved external symbol __imp__PyErr_Clear referenced in function _SWIG_Python_GetModule 1>example_wrap.obj : error LNK2019: unresolved external symbol __imp__PyErr_Occurred referenced in function _SWIG_Python_GetModule 1>example_wrap.obj : error LNK2019: unresolved external symbol __imp__PyCapsule_Import referenced in function _SWIG_Python_GetModule 1>example_wrap.obj : error LNK2019: unresolved external symbol __imp__PyCapsule_GetPointer referenced in function _SWIG_Python_DestroyModule 1>example_wrap.obj : error LNK2019: unresolved external symbol __imp__PyModule_AddObject referenced in function _SWIG_Python_SetModule 1>example_wrap.obj : error LNK2019: unresolved external symbol __imp__PyCapsule_New referenced in function _SWIG_Python_SetModule 1>example_wrap.obj : error LNK2019: unresolved external symbol __imp__PyImport_AddModule referenced in function _SWIG_Python_SetModule 1>example_wrap.obj : error LNK2019: unresolved external symbol __imp__PyFloat_AsDouble referenced in function _SWIG_AsVal_double 1>example_wrap.obj : error LNK2019: unresolved external symbol __imp__PyLong_AsLong referenced in function _SWIG_AsVal_double 1>example_wrap.obj : error LNK2019: unresolved external symbol __imp__PyType_IsSubtype referenced in function _SWIG_AsVal_double 1>example_wrap.obj : error LNK2001: unresolved external symbol __imp__PyFloat_Type 1>example_wrap.obj : error LNK2019: unresolved external symbol __imp__PyLong_FromLong referenced in function _SWIG_From_int 1>example_wrap.obj : error LNK2019: unresolved external symbol __imp__PyArg_ParseTuple referenced in function __wrap_gcd 1>example_wrap.obj : error LNK2019: unresolved external symbol __imp__PyFloat_FromDouble referenced in function _Swig_var_Foo_get 1>example_wrap.obj : error LNK2019: unresolved external symbol __imp__PyUnicode_InternFromString referenced in function _swig_varlink_repr 1>example_wrap.obj : error LNK2001: unresolved external symbol __imp__PyExc_NameError 1>example_wrap.obj : error LNK2019: unresolved external symbol __imp__PyObject_Init referenced in function _SWIG_Python_newvarlink 1>example_wrap.obj : error LNK2019: unresolved external symbol __imp__PyObject_Malloc referenced in function _SWIG_Python_newvarlink 1>example_wrap.obj : error LNK2019: unresolved external symbol __imp___PyObject_New referenced in function _SWIG_Python_NewPointerObj 1>example_wrap.obj : error LNK2019: unresolved external symbol __imp__PyDict_SetItemString referenced in function _SWIG_Python_InstallConstants 1>example_wrap.obj : error LNK2019: unresolved external symbol __imp__PyModule_GetDict referenced in function _PyInit__example 1>example_wrap.obj : error LNK2019: unresolved external symbol __imp__PyModule_Create2 referenced in function _PyInit__example ---------- components: Windows messages: 168964 nosy: spatz123 priority: normal severity: normal status: open title: Unresolved symbols in Windows 64-bit python type: compile error versions: Python 2.7, Python 3.2 _______________________________________ Python tracker <rep...@bugs.python.org> 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