Faça o download do arquivo de roda apropriado (.whl) no link
Instalando em python_2.7 windows_64_bit, por exemplo:
pip2.7 install c:\downloads\backports.lzma‑0.0.12‑cp27‑cp27m‑win_amd64.whl
Eu tenho um PC com Windows 7 com a atualização 3 do Visual Studio 2015 instalado e gostaria de instalar a biblioteca backports.lzma para Python com pip.
Eu baixei e extrai o XZ Utils na pasta Arquivos de Programas. (XZ Utils é obrigatório para a instalação da biblioteca de backports, conforme especificado no site do Pypi )
Esta é a saída do pip:
Installing collected packages: backports.lzma
Running setup.py install for backports.lzma: started
Running setup.py install for backports.lzma: finished with status 'error'
Complete output from command "C:\Program Files (x86)\Python27\python.exe" -u -c "import setuptools, tokenize;__file__='c:\users\myuser\appdata\local\temp\pip-build-smbn4k\backports.lzma\setup.py';f=getattr(tokenize, 'open', open)(__file__);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, __file__, 'exec'))" install --record c:\users\myuser\appdata\local\temp\pip-hfgg8w-record\install-record.txt --single-version-externally-managed --compile:
This is backports.lzma version 0.0.8
running install
running build
running build_py
creating build
creating build\lib.win32-2.7
creating build\lib.win32-2.7\backports
copying backports\__init__.py -> build\lib.win32-2.7\backports
creating build\lib.win32-2.7\backports\lzma
copying backports\lzma\__init__.py -> build\lib.win32-2.7\backports\lzma
running build_ext
building 'backports/lzma/_lzma' extension
creating build\temp.win32-2.7
creating build\temp.win32-2.7\Release
creating build\temp.win32-2.7\Release\backports
creating build\temp.win32-2.7\Release\backports\lzma
C:\Users\myuser\AppData\Local\Programs\Common\Microsoft\Visual C++ for Python.0\VC\Bin\cl.exe /c /nologo /Ox /MD /W3 /GS- /DNDEBUG "-IC:\Program Files (x86)\Python27\include" -IC:\Users\myuser\include -I/opt/local/include -I/usr/local/include "-IC:\Program Files (x86)\Python27\include" "-IC:\Program Files (x86)\Python27\PC" /Tcbackports/lzma/_lzmamodule.c /Fobuild\temp.win32-2.7\Release\backports/lzma/_lzmamodule.obj
_lzmamodule.c
backports/lzma/_lzmamodule.c(32) : warning C4273: 'PyErr_NewExceptionWithDoc' : inconsistent dll linkage
C:\Program Files (x86)\Python27\include\pyerrors.h(226) : see previous definition of 'PyErr_NewExceptionWithDoc'
backports/lzma/_lzmamodule.c(115) : fatal error C1083: Cannot open include file: 'lzma.h': No such file or directory
error: command 'C:\Users\myuser\AppData\Local\Programs\Common\Microsoft\Visual C++ for Python\9.0\VC\Bin\cl.exe' failed with exit status 2
----------------------------------------
Failed building wheel for backports.lzma
Command ""C:\Program Files (x86)\Python27\python.exe" -u -c "import setuptools, tokenize;__file__='c:\users\myuser\appdata\local\temp\pip-build-smbn4k\backports.lzma\setup.py';f=getattr(tokenize, 'open', open)(__file__);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, __file__, 'exec'))" install --record c:\users\myuser\appdata\local\temp\pip-hfgg8w-record\install-record.txt --single-version-externally-managed --compile" failed with error code 1 in c:\users\myuser\appdata\local\temp\pip-build-smbn4k\backports.lzma\
'backports.lzma' failed to install. Exit code: 1
Nos Arquivos de Programas \ xz \ include, há o arquivo lzma.h. Como vincular o cabeçalho a ser reconhecido?