无法使用pip安装python包，需要获取Microsoft Visual C ++ 14.0

时间：2018-06-18 18:50:00

标签： python pip

我正在尝试安装pyjks。 我在管理命令提示符下运行一切。 最初尝试安装pyjks导致了这个：

C:\WINDOWS\system32>pip install pyjks
Collecting pyjks
Collecting pycryptodome (from pyjks)
  Using cached https://files.pythonhosted.org/packages/82/bd/bd192c1314bde108a91295fbec02bc20a816330feb10273aa36d885004ab/pycryptodome-3.6.1-cp36-cp36m-win_amd64.whl
Collecting pyasn1-modules (from pyjks)
  Using cached https://files.pythonhosted.org/packages/e9/51/bcd96bf6231d4b2cc5e023c511bee86637ba375c44a6f9d1b4b7ad1ce4b9/pyasn1_modules-0.2.1-py2.py3-none-any.whl
Collecting pyasn1 (from pyjks)
  Using cached https://files.pythonhosted.org/packages/a0/70/2c27740f08e477499ce19eefe05dbcae6f19fdc49e9e82ce4768be0643b9/pyasn1-0.4.3-py2.py3-none-any.whl
Collecting twofish (from pyjks)
  Using cached https://files.pythonhosted.org/packages/82/b4/9eb026a8e62a04512435d3de25c93f7bda51c8b8c7991c1c0be70b5115a6/twofish-0.3.0.tar.gz
Collecting javaobj-py3 (from pyjks)
  Using cached https://files.pythonhosted.org/packages/6a/7d/1979d67bb8f6c5babb8dda0cb79d6d4663ef9a039c193b5adcc787a86285/javaobj_py3-0.2.4-py2.py3-none-any.whl
Installing collected packages: pycryptodome, pyasn1, pyasn1-modules, twofish, javaobj-py3, pyjks
  Running setup.py install for twofish ... error
    Complete output from command "c:\program files\python36\python.exe" -u -c "import setuptools, tokenize;__file__='C:\\Users\\crrma\\AppData\\Local\\Temp\\pip-install-xlk00hde\\twofish\\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\crrma\AppData\Local\Temp\pip-record-5jn53157\install-record.txt --single-version-externally-managed --compile:
    running install
    running build
    running build_py
    creating build
    creating build\lib.win-amd64-3.6
    copying twofish.py -> build\lib.win-amd64-3.6
    running build_ext
    building '_twofish' extension
    error: Microsoft Visual C++ 14.0 is required. Get it with "Microsoft Visual C++ Build Tools": http://landinghub.visualstudio.com/visual-cpp-build-tools

    ----------------------------------------
Command ""c:\program files\python36\python.exe" -u -c "import setuptools, tokenize;__file__='C:\\Users\\crrma\\AppData\\Local\\Temp\\pip-install-xlk00hde\\twofish\\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\crrma\AppData\Local\Temp\pip-record-5jn53157\install-record.txt --single-version-externally-managed --compile" failed with error code 1 in C:\Users\crrma\AppData\Local\Temp\pip-install-xlk00hde\twofish\

我从here安装了Visual C ++ 14.0并尝试重新安装。但是得到了同样的错误。

正如在this page的几条评论中所建议的那样，我升级了setuptools：

C:\WINDOWS\system32>pip install --upgrade setuptools
Collecting setuptools
  Using cached https://files.pythonhosted.org/packages/7f/e1/820d941153923aac1d49d7fc37e17b6e73bfbd2904959fffbad77900cf92/setuptools-39.2.0-py2.py3-none-any.whl
Installing collected packages: setuptools
  Found existing installation: setuptools 39.0.1
    Uninstalling setuptools-39.0.1:
      Successfully uninstalled setuptools-39.0.1
Successfully installed setuptools-39.2.0

但仍然得到同样的错误。正如same page所建议的那样，我从here下载了tar.gz并从中安装：

C:\Users\crrma\Downloads>pip install pyjks-17.1.1.tar.gz
Processing c:\users\crrma\downloads\pyjks-17.1.1.tar.gz
Requirement already satisfied: pyasn1 in c:\program files\python36\lib\site-packages (from pyjks==17.1.1) (0.4.3)
Requirement already satisfied: pyasn1_modules in c:\program files\python36\lib\site-packages (from pyjks==17.1.1) (0.2.1)
Collecting javaobj-py3 (from pyjks==17.1.1)
  Using cached https://files.pythonhosted.org/packages/6a/7d/1979d67bb8f6c5babb8dda0cb79d6d4663ef9a039c193b5adcc787a86285/javaobj_py3-0.2.4-py2.py3-none-any.whl
Requirement already satisfied: pycryptodome in c:\program files\python36\lib\site-packages (from pyjks==17.1.1) (3.6.1)
Collecting twofish (from pyjks==17.1.1)
  Using cached https://files.pythonhosted.org/packages/82/b4/9eb026a8e62a04512435d3de25c93f7bda51c8b8c7991c1c0be70b5115a6/twofish-0.3.0.tar.gz
Installing collected packages: javaobj-py3, twofish, pyjks
  Running setup.py install for twofish ... error
    Complete output from command "c:\program files\python36\python.exe" -u -c "import setuptools, tokenize;__file__='C:\\Users\\crrma\\AppData\\Local\\Temp\\pip-install-c3n_0udc\\twofish\\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\crrma\AppData\Local\Temp\pip-record-tpgigq69\install-record.txt --single-version-externally-managed --compile:
    running install
    running build
    running build_py
    creating build
    creating build\lib.win-amd64-3.6
    copying twofish.py -> build\lib.win-amd64-3.6
    running build_ext
    building '_twofish' extension
    error: Microsoft Visual C++ 14.0 is required. Get it with "Microsoft Visual C++ Build Tools": http://landinghub.visualstudio.com/visual-cpp-build-tools

    ----------------------------------------
Command ""c:\program files\python36\python.exe" -u -c "import setuptools, tokenize;__file__='C:\\Users\\crrma\\AppData\\Local\\Temp\\pip-install-c3n_0udc\\twofish\\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\crrma\AppData\Local\Temp\pip-record-tpgigq69\install-record.txt --single-version-externally-managed --compile" failed with error code 1 in C:\Users\crrma\AppData\Local\Temp\pip-install-c3n_0udc\twofish\

但它根本没有安装。这里出了什么问题？

我正在运行python的最新版本：

C:\>python
Python 3.6.6rc1 (v3.6.6rc1:1015e38be4, Jun 12 2018, 08:38:06) [MSC v.1900 64 bit (AMD64)] on win32

1 个答案:

答案 0 :(得分：0)

我无法解决此问题。 （我尝试通过安装this进行尝试，但没有成功。似乎我安装的是运行时而不是编译器，我们需要安装Visual Studio来安装编译器。我对运行大型安装程序感到不舒服Visual Studio只是安装单个python包。）相反，我诉诸于设置cygwin（与Visual Studio相比，它很小，并且已经安装在我的计算机上）。我尝试在cygwin终端上运行pip3 install pyjks，但是现在出现错误，提示找不到gcc。看来pyjks的某些依赖项需要由C编译器进行编译。所以我在cygwin中安装了gcc。但是它也失败了。因此，我使用apt-cyg安装了gcc。所有步骤都在下面说明。

  1. 安装cygwin

  2. 在cygwin设置中，在软件包选择窗口中选择python3，pip3和gcc-g ++软件包：

    • python3-devel：Py3K语言解释器
    • python3-pip：Python软件包安装工具
    • gcc-core：GNU编译器集合（C，OpenMP）
    • gcc-g ++：GNU编译器集合（C ++）

    enter image description here

  3. 如果忘记选择它们，或者已经安装了cygwin并想安装这些其他软件包，则可以重新运行cygwin设置（即path-to-cygwin\cygwin\setup\setup-x86_64.exe）并选择以上软件包。

  4. 我无法通过上述方法安装gcc。它给了我以下错误： enter image description here
    因此，我尝试使用apt-cyg安装它。您可以在this answer中找到安装apt-cyg的步骤。从apt-cyg终端（即cyg-win）访问path-to-cygwin\cygwin\setup\Cygwin.bat后，您可以运行以下命令来安装gcc 

    apt-cyg install gcc-g++

  5. 一旦安装了gcc，就可以使用pyjks安装pip（不会出现任何错误，提示未找到C编译器）：

    pip3 install pyjks

我什至可以将cygwin（即path-to-cygwin\cygwin\bin\python3）内的python指向eclipse PyDev模块的python解释器。这也使我可以在python中使用os.fork()，因为Windows python的os模块不包含fork()。

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