Help configuring visual studio to compile python extensions

stephen.boulet at gmail.com stephen.boulet at gmail.com
Fri Jan 9 09:58:47 EST 2015 

I've installed Microsoft Visual Studio 10.0. Here are the steps I've been taking.

My python version is Python 3.4.2 (v3.4.2:ab2c023a9432, Oct  6 2014, 22:16:31) [MSC v.1600 64 bit (AMD64)] on win32.

(Sorry for the long output.)

>cd "c:\Program Files (x86)\Microsoft Visual Studio 10.0"\vc
>vcvarsall.bat
>
>SET VS90COMNTOOLS=%VS100COMNTOOLS%
c:\Program Files (x86)\Microsoft Visual Studio 10.0\VC>pip install scandir
Collecting scandir
  Using cached scandir-0.9.tar.gz
Installing collected packages: scandir
  Running setup.py install for scandir
    building '_scandir' extension
    C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\BIN\cl.exe /c /nologo /Ox /MD /W3 /GS- /DNDEBUG -Ic:\Python34\include -Ic:\Python34\include /Tc_scandir.c /Fobuild\temp.win-amd64-3.4\Release
\_scandir.obj
    _scandir.c
    C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\BIN\link.exe /DLL /nologo /INCREMENTAL:NO /LIBPATH:c:\Python34\libs /LIBPATH:c:\Python34\PCbuild\amd64 /EXPORT:PyInit__scandir build\temp.win
-amd64-3.4\Release\_scandir.obj /OUT:build\lib.win-amd64-3.4\_scandir.pyd /IMPLIB:build\temp.win-amd64-3.4\Release\_scandir.lib /MANIFESTFILE:build\temp.win-amd64-3.4\Release\_scandir.pyd.manifest
       Creating library build\temp.win-amd64-3.4\Release\_scandir.lib and object build\temp.win-amd64-3.4\Release\_scandir.exp
    _scandir.obj : error LNK2001: unresolved external symbol _PyObject_SelfIter
    _scandir.obj : error LNK2001: unresolved external symbol _PyObject_GenericGetAttr
    _scandir.obj : error LNK2019: unresolved external symbol __imp__PyErr_WarnEx referenced in function _win32_warn_bytes_api
    _scandir.obj : error LNK2019: unresolved external symbol __imp__PyExc_DeprecationWarning referenced in function _win32_warn_bytes_api
    _scandir.obj : error LNK2019: unresolved external symbol __imp__PyErr_Occurred referenced in function _path_converter
    _scandir.obj : error LNK2019: unresolved external symbol __imp__PyBytes_FromObject referenced in function _path_converter
    _scandir.obj : error LNK2019: unresolved external symbol __imp__PyErr_Clear referenced in function _path_converter
    _scandir.obj : error LNK2019: unresolved external symbol __imp__PyExc_ValueError referenced in function _path_converter
    _scandir.obj : error LNK2019: unresolved external symbol __imp__PyUnicode_AsUnicodeAndSize referenced in function _path_converter
    _scandir.obj : error LNK2019: unresolved external symbol __imp__PyUnicode_FromObject referenced in function _path_converter
    _scandir.obj : error LNK2019: unresolved external symbol __imp__PyErr_Format referenced in function _path_converter
    _scandir.obj : error LNK2019: unresolved external symbol __imp__PyExc_TypeError referenced in function _path_converter
    _scandir.obj : error LNK2019: unresolved external symbol __imp___Py_NoneStruct referenced in function _path_converter
    _scandir.obj : error LNK2019: unresolved external symbol __imp__PyLong_FromUnsignedLong referenced in function _find_data_to_statresult
    _scandir.obj : error LNK2019: unresolved external symbol __imp__PyFloat_FromDouble referenced in function _find_data_to_statresult
    _scandir.obj : error LNK2019: unresolved external symbol __imp__PyLong_FromUnsignedLongLong referenced in function _find_data_to_statresult
    _scandir.obj : error LNK2019: unresolved external symbol __imp__PyLong_FromLong referenced in function _find_data_to_statresult
    _scandir.obj : error LNK2019: unresolved external symbol __imp__PyStructSequence_New referenced in function _find_data_to_statresult
    _scandir.obj : error LNK2019: unresolved external symbol __imp__PyEval_RestoreThread referenced in function __fi_close
    _scandir.obj : error LNK2019: unresolved external symbol __imp__PyEval_SaveThread referenced in function __fi_close
    _scandir.obj : error LNK2019: unresolved external symbol __imp__Py_BuildValue referenced in function __fi_next
    _scandir.obj : error LNK2019: unresolved external symbol __imp__PyErr_SetFromWindowsErr referenced in function __fi_next
    _scandir.obj : error LNK2019: unresolved external symbol __imp__PyErr_NoMemory referenced in function __fi_next
    _scandir.obj : error LNK2019: unresolved external symbol __imp__PyErr_SetNone referenced in function __fi_next
    _scandir.obj : error LNK2019: unresolved external symbol __imp__PyExc_StopIteration referenced in function __fi_next
    _scandir.obj : error LNK2019: unresolved external symbol __imp__PyObject_Free referenced in function _fi_dealloc
    _scandir.obj : error LNK2019: unresolved external symbol __imp___PyObject_New referenced in function __iterfile
    _scandir.obj : error LNK2019: unresolved external symbol __imp__PyArg_ParseTupleAndKeywords referenced in function _scandir_helper
    _scandir.obj : error LNK2019: unresolved external symbol __imp__PyStructSequence_InitType referenced in function _PyInit__scandir
    _scandir.obj : error LNK2019: unresolved external symbol __imp__PyType_Ready referenced in function _PyInit__scandir
    _scandir.obj : error LNK2019: unresolved external symbol __imp__PyModule_Create2 referenced in function _PyInit__scandir
    build\lib.win-amd64-3.4\_scandir.pyd : fatal error LNK1120: 31 unresolved externals
    error: command 'C:\\Program Files (x86)\\Microsoft Visual Studio 10.0\\VC\\BIN\\link.exe' failed with exit status 1120
    Complete output from command c:\Python34\python.exe -c "import setuptools, tokenize;__file__='C:\\Users\\SBO010\\AppData\\Local\\Temp\\pip-build-gd_12t27\\scandir\\setup.py';exec(compile(getattr(t
okenize, 'open', open)(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --record C:\Users\SBO010\AppData\Local\Temp\pip-tzadruqn-record\install-record.txt --single-version-externall
y-managed --compile:
    running install

    running build

    running build_py

    creating build

    creating build\lib.win-amd64-3.4

    copying scandir.py -> build\lib.win-amd64-3.4

    running build_ext

    building '_scandir' extension

    creating build\temp.win-amd64-3.4

    creating build\temp.win-amd64-3.4\Release

    C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\BIN\cl.exe /c /nologo /Ox /MD /W3 /GS- /DNDEBUG -Ic:\Python34\include -Ic:\Python34\include /Tc_scandir.c /Fobuild\temp.win-amd64-3.4\Release
\_scandir.obj

    _scandir.c

    C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\BIN\link.exe /DLL /nologo /INCREMENTAL:NO /LIBPATH:c:\Python34\libs /LIBPATH:c:\Python34\PCbuild\amd64 /EXPORT:PyInit__scandir build\temp.win
-amd64-3.4\Release\_scandir.obj /OUT:build\lib.win-amd64-3.4\_scandir.pyd /IMPLIB:build\temp.win-amd64-3.4\Release\_scandir.lib /MANIFESTFILE:build\temp.win-amd64-3.4\Release\_scandir.pyd.manifest

       Creating library build\temp.win-amd64-3.4\Release\_scandir.lib and object build\temp.win-amd64-3.4\Release\_scandir.exp

    _scandir.obj : error LNK2001: unresolved external symbol _PyObject_SelfIter

    _scandir.obj : error LNK2001: unresolved external symbol _PyObject_GenericGetAttr

    _scandir.obj : error LNK2019: unresolved external symbol __imp__PyErr_WarnEx referenced in function _win32_warn_bytes_api

    _scandir.obj : error LNK2019: unresolved external symbol __imp__PyExc_DeprecationWarning referenced in function _win32_warn_bytes_api

    _scandir.obj : error LNK2019: unresolved external symbol __imp__PyErr_Occurred referenced in function _path_converter

    _scandir.obj : error LNK2019: unresolved external symbol __imp__PyBytes_FromObject referenced in function _path_converter

    _scandir.obj : error LNK2019: unresolved external symbol __imp__PyErr_Clear referenced in function _path_converter

    _scandir.obj : error LNK2019: unresolved external symbol __imp__PyExc_ValueError referenced in function _path_converter

    _scandir.obj : error LNK2019: unresolved external symbol __imp__PyUnicode_AsUnicodeAndSize referenced in function _path_converter

    _scandir.obj : error LNK2019: unresolved external symbol __imp__PyUnicode_FromObject referenced in function _path_converter

    _scandir.obj : error LNK2019: unresolved external symbol __imp__PyErr_Format referenced in function _path_converter

    _scandir.obj : error LNK2019: unresolved external symbol __imp__PyExc_TypeError referenced in function _path_converter

    _scandir.obj : error LNK2019: unresolved external symbol __imp___Py_NoneStruct referenced in function _path_converter

    _scandir.obj : error LNK2019: unresolved external symbol __imp__PyLong_FromUnsignedLong referenced in function _find_data_to_statresult

    _scandir.obj : error LNK2019: unresolved external symbol __imp__PyFloat_FromDouble referenced in function _find_data_to_statresult

    _scandir.obj : error LNK2019: unresolved external symbol __imp__PyLong_FromUnsignedLongLong referenced in function _find_data_to_statresult

    _scandir.obj : error LNK2019: unresolved external symbol __imp__PyLong_FromLong referenced in function _find_data_to_statresult

    _scandir.obj : error LNK2019: unresolved external symbol __imp__PyStructSequence_New referenced in function _find_data_to_statresult

    _scandir.obj : error LNK2019: unresolved external symbol __imp__PyEval_RestoreThread referenced in function __fi_close

    _scandir.obj : error LNK2019: unresolved external symbol __imp__PyEval_SaveThread referenced in function __fi_close

    _scandir.obj : error LNK2019: unresolved external symbol __imp__Py_BuildValue referenced in function __fi_next

    _scandir.obj : error LNK2019: unresolved external symbol __imp__PyErr_SetFromWindowsErr referenced in function __fi_next

    _scandir.obj : error LNK2019: unresolved external symbol __imp__PyErr_NoMemory referenced in function __fi_next

    _scandir.obj : error LNK2019: unresolved external symbol __imp__PyErr_SetNone referenced in function __fi_next

    _scandir.obj : error LNK2019: unresolved external symbol __imp__PyExc_StopIteration referenced in function __fi_next

    _scandir.obj : error LNK2019: unresolved external symbol __imp__PyObject_Free referenced in function _fi_dealloc

    _scandir.obj : error LNK2019: unresolved external symbol __imp___PyObject_New referenced in function __iterfile

    _scandir.obj : error LNK2019: unresolved external symbol __imp__PyArg_ParseTupleAndKeywords referenced in function _scandir_helper

    _scandir.obj : error LNK2019: unresolved external symbol __imp__PyStructSequence_InitType referenced in function _PyInit__scandir

    _scandir.obj : error LNK2019: unresolved external symbol __imp__PyType_Ready referenced in function _PyInit__scandir

    _scandir.obj : error LNK2019: unresolved external symbol __imp__PyModule_Create2 referenced in function _PyInit__scandir

    build\lib.win-amd64-3.4\_scandir.pyd : fatal error LNK1120: 31 unresolved externals

    error: command 'C:\\Program Files (x86)\\Microsoft Visual Studio 10.0\\VC\\BIN\\link.exe' failed with exit status 1120

    ----------------------------------------
    Command "c:\Python34\python.exe -c "import setuptools, tokenize;__file__='C:\\Users\\SBO010\\AppData\\Local\\Temp\\pip-build-gd_12t27\\scandir\\setup.py';exec(compile(getattr(tokenize, 'open', ope
n)(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --record C:\Users\SBO010\AppData\Local\Temp\pip-tzadruqn-record\install-record.txt --single-version-externally-managed --compile"
 failed with error code 1 in C:\Users\SBO010\AppData\Local\Temp\pip-build-gd_12t27\scandir

c:\Program Files (x86)\Microsoft Visual Studio 10.0\VC>

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