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Groups > comp.lang.python > #83445 > unrolled thread

Help configuring visual studio to compile python extensions

Started bystephen.boulet@gmail.com
First post2015-01-09 06:58 -0800
Last post2015-01-09 15:16 -0800
Articles 6 — 3 participants

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  Help configuring visual studio to compile python extensions stephen.boulet@gmail.com - 2015-01-09 06:58 -0800
    Re: Help configuring visual studio to compile python extensions Mark Lawrence <breamoreboy@yahoo.co.uk> - 2015-01-09 15:23 +0000
    Re: Help configuring visual studio to compile python extensions Chris Angelico <rosuav@gmail.com> - 2015-01-10 02:35 +1100
    Re: Help configuring visual studio to compile python extensions stephen.boulet@gmail.com - 2015-01-09 14:14 -0800
      Re: Help configuring visual studio to compile python extensions Mark Lawrence <breamoreboy@yahoo.co.uk> - 2015-01-09 22:36 +0000
    Re: Help configuring visual studio to compile python extensions stephen.boulet@gmail.com - 2015-01-09 15:16 -0800

#83445 — Help configuring visual studio to compile python extensions

Fromstephen.boulet@gmail.com
Date2015-01-09 06:58 -0800
SubjectHelp configuring visual studio to compile python extensions
Message-ID<5c51c0ef-b2d0-4edd-b3cd-37759b5807e8@googlegroups.com>
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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#83450

FromMark Lawrence <breamoreboy@yahoo.co.uk>
Date2015-01-09 15:23 +0000
Message-ID<mailman.17530.1420817203.18130.python-list@python.org>
In reply to#83445
On 09/01/2015 14:58, stephen.boulet@gmail.com wrote:
> 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

See https://docs.python.org/3/extending/windows.html

I'll admit to being a little annoyed that scandir says it supports 
Python 3 but only provides a 2.7 exe on pypi.

Worse even my normal backup failed me 
http://www.lfd.uci.edu/~gohlke/pythonlibs/

-- 
My fellow Pythonistas, ask not what our language can do for you, ask
what you can do for our language.

Mark Lawrence

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#83452

FromChris Angelico <rosuav@gmail.com>
Date2015-01-10 02:35 +1100
Message-ID<mailman.17531.1420817760.18130.python-list@python.org>
In reply to#83445
On Sat, Jan 10, 2015 at 2:23 AM, Mark Lawrence <breamoreboy@yahoo.co.uk> wrote:
> I'll admit to being a little annoyed that scandir says it supports Python 3
> but only provides a 2.7 exe on pypi.

If you can wait for 3.5, you might find it in the standard library.
PEP 471 was accepted, and I believe that means scandir will be
arriving at some point. (Not sure when, though.) At that point, 2.7
will be the primary target for the PyPI distribution.

ChrisA

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#83470

Fromstephen.boulet@gmail.com
Date2015-01-09 14:14 -0800
Message-ID<12a44355-0966-4e91-aac2-da0d8f722e3c@googlegroups.com>
In reply to#83445
This page helped me sort everything out: http://www.falatic.com/index.php/120/a-guide-to-building-python-2-x-and-3-x-extensions-for-windows.

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#83473

FromMark Lawrence <breamoreboy@yahoo.co.uk>
Date2015-01-09 22:36 +0000
Message-ID<mailman.17544.1420843037.18130.python-list@python.org>
In reply to#83470
On 09/01/2015 22:14, stephen.boulet@gmail.com wrote:
> This page helped me sort everything out: http://www.falatic.com/index.php/120/a-guide-to-building-python-2-x-and-3-x-extensions-for-windows.
>

That's good to know both for you and me but in future could you please 
quote some context, thanks :)

-- 
My fellow Pythonistas, ask not what our language can do for you, ask
what you can do for our language.

Mark Lawrence

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#83477

Fromstephen.boulet@gmail.com
Date2015-01-09 15:16 -0800
Message-ID<7170728d-3242-4480-92d2-60cf9458abfd@googlegroups.com>
In reply to#83445
On Friday, January 9, 2015 at 8:58:59 AM UTC-6, stephen...@gmail.com wrote:
> 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>

This page helped me sort everything out: http://www.falatic.com/index.php/120/a-guide-to-building-python-2-x-and-3-x-extensions-for-windows.

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