Virtualenv 错误 - build_ext

Question

我有一个包含以下模块的 requirements.txt 文件：

Flask==0.10.1
Flask-Login==0.3.1
Flask-SQLAlchemy==2.0
Jinja2==2.7.3
MarkupSafe==0.23
SQLAlchemy==0.9.8
Werkzeug==0.9.6
argparse==1.2.1
itsdangerous==0.24
rauth==0.7.0
requests==2.4.3

当我激活我的 virtualenv 以安装这些模块时 .\venv\Scripts\activate SQLAlchemy 失败，MarkupSafe 失败。如果我停用我的 virtualenv，并且简单地 pip install MarkupSafe 或 pip install SQLAlchemy - 他们成功安装。

我不知道这是为什么。我已经尝试过 uninstalling/reinstalling virtualenv & python - 并与一位对 Python 非常了解的朋友交谈过（他认为这是 Windows 环境特有的东西）但不幸的是我不知道接下来要尝试什么。

我怀疑这可能与我在 user\AppData 下删除了一个名为 'Python' 的文件夹有关。我试图卸载 Python 并从白手起家...

这是与 MarkupSafe 关联的相关输出（或者至少，我认为是输出的相关部分）：

  Running setup.py clean for SQLAlchemy
  Running setup.py bdist_wheel for markupsafe ... error
  Complete output from command c:\test_oauth\venv\scripts\python.exe -u -c "import setuptools, tokenize;__file__='C:\Users\SEANBA~1\AppData\Local\Temp\pip-build-pvc5zlcc\markupsafe\setup.py';exec(compile(getattr(tokenize, 'open', open)(__file__).read().replace('\
r\n', '\n'), __file__, 'exec'))" bdist_wheel -d C:\Users\SEANBA~1\AppData\Local\Temp\tmpkf78v48_pip-wheel- --python-tag cp35:
  running bdist_wheel
  running build
  running build_py
  creating build
  creating build\lib.win32-3.5
  creating build\lib.win32-3.5\markupsafe
  copying markupsafe\tests.py -> build\lib.win32-3.5\markupsafe
  copying markupsafe\_compat.py -> build\lib.win32-3.5\markupsafe
  copying markupsafe\_constants.py -> build\lib.win32-3.5\markupsafe
  copying markupsafe\_native.py -> build\lib.win32-3.5\markupsafe
  copying markupsafe\__init__.py -> build\lib.win32-3.5\markupsafe
  running egg_info
  writing dependency_links to MarkupSafe.egg-info\dependency_links.txt
  writing MarkupSafe.egg-info\PKG-INFO
  writing top-level names to MarkupSafe.egg-info\top_level.txt
  warning: manifest_maker: standard file '-c' not found

  reading manifest file 'MarkupSafe.egg-info\SOURCES.txt'
  reading manifest template 'MANIFEST.in'
  writing manifest file 'MarkupSafe.egg-info\SOURCES.txt'
  copying markupsafe\_speedups.c -> build\lib.win32-3.5\markupsafe
  running build_ext
  building 'markupsafe._speedups' extension
  Traceback (most recent call last):
    File "<string>", line 1, in <module>
    File "C:\Users\SEANBA~1\AppData\Local\Temp\pip-build-pvc5zlcc\markupsafe\setup.py", line 120, in <module>
      try_building_extension()
    File "C:\Users\SEANBA~1\AppData\Local\Temp\pip-build-pvc5zlcc\markupsafe\setup.py", line 99, in try_building_extension
      run_setup(True)
    File "C:\Users\SEANBA~1\AppData\Local\Temp\pip-build-pvc5zlcc\markupsafe\setup.py", line 93, in run_setup
      ext_modules=ext_modules,
    File "C:\Python35-32\Lib\distutils\core.py", line 148, in setup
      dist.run_commands()
    File "C:\Python35-32\Lib\distutils\dist.py", line 955, in run_commands
      self.run_command(cmd)
    File "C:\Python35-32\Lib\distutils\dist.py", line 974, in run_command
      cmd_obj.run()
    File "c:\test_oauth\venv\lib\site-packages\wheel\bdist_wheel.py", line 179, in run
      self.run_command('build')
    File "C:\Python35-32\Lib\distutils\cmd.py", line 313, in run_command
      self.distribution.run_command(command)
    File "C:\Python35-32\Lib\distutils\dist.py", line 974, in run_command
      cmd_obj.run()
    File "C:\Python35-32\Lib\distutils\command\build.py", line 135, in run
      self.run_command(cmd_name)
    File "C:\Python35-32\Lib\distutils\cmd.py", line 313, in run_command
      self.distribution.run_command(command)
    File "C:\Python35-32\Lib\distutils\dist.py", line 974, in run_command
      cmd_obj.run()
    File "C:\Users\SEANBA~1\AppData\Local\Temp\pip-build-pvc5zlcc\markupsafe\setup.py", line 41, in run
      build_ext.run(self)
    File "C:\Python35-32\Lib\distutils\command\build_ext.py", line 338, in run
      self.build_extensions()
    File "C:\Python35-32\Lib\distutils\command\build_ext.py", line 447, in build_extensions
      self._build_extensions_serial()
    File "C:\Python35-32\Lib\distutils\command\build_ext.py", line 472, in _build_extensions_serial
      self.build_extension(ext)
    File "C:\Users\SEANBA~1\AppData\Local\Temp\pip-build-pvc5zlcc\markupsafe\setup.py", line 47, in build_extension
      build_ext.build_extension(self, ext)
    File "C:\Python35-32\Lib\distutils\command\build_ext.py", line 532, in build_extension
      depends=ext.depends)
    File "C:\Python35-32\Lib\distutils\_msvccompiler.py", line 306, in compile
      self.initialize()
    File "C:\Python35-32\Lib\distutils\_msvccompiler.py", line 199, in initialize
      vc_env = _get_vc_env(plat_spec)
    File "c:\test_oauth\venv\lib\site-packages\setuptools\msvc.py", line 206, in msvc14_get_vc_env
      return EnvironmentInfo(plat_spec, vc_ver_min=14.0).return_env()
  TypeError: __init__() got an unexpected keyword argument 'vc_ver_min'

  ----------------------------------------
  Failed building wheel for markupsafe

这是与 SQLAlchemy 失败相关的相关输出（或者至少，我认为是输出的相关部分）：

  running build_ext
  building 'sqlalchemy.cprocessors' extension
  Traceback (most recent call last):
    File "<string>", line 1, in <module>
    File "C:\Users\SEANBA~1\AppData\Local\Temp\pip-build-pvc5zlcc\SQLAlchemy\setup.py", line 170, in <module>
      run_setup(True)
    File "C:\Users\SEANBA~1\AppData\Local\Temp\pip-build-pvc5zlcc\SQLAlchemy\setup.py", line 150, in run_setup
      **kwargs
    File "C:\Python35-32\Lib\distutils\core.py", line 148, in setup
      dist.run_commands()
    File "C:\Python35-32\Lib\distutils\dist.py", line 955, in run_commands
      self.run_command(cmd)
    File "C:\Python35-32\Lib\distutils\dist.py", line 974, in run_command
      cmd_obj.run()
    File "c:\test_oauth\venv\lib\site-packages\wheel\bdist_wheel.py", line 179, in run
      self.run_command('build')
    File "C:\Python35-32\Lib\distutils\cmd.py", line 313, in run_command
      self.distribution.run_command(command)
    File "C:\Python35-32\Lib\distutils\dist.py", line 974, in run_command
      cmd_obj.run()
    File "C:\Python35-32\Lib\distutils\command\build.py", line 135, in run
      self.run_command(cmd_name)
    File "C:\Python35-32\Lib\distutils\cmd.py", line 313, in run_command
      self.distribution.run_command(command)
    File "C:\Python35-32\Lib\distutils\dist.py", line 974, in run_command
      cmd_obj.run()
    File "C:\Users\SEANBA~1\AppData\Local\Temp\pip-build-pvc5zlcc\SQLAlchemy\setup.py", line 67, in run
      build_ext.run(self)
    File "C:\Python35-32\Lib\distutils\command\build_ext.py", line 338, in run
      self.build_extensions()
    File "C:\Python35-32\Lib\distutils\command\build_ext.py", line 447, in build_extensions
      self._build_extensions_serial()
    File "C:\Python35-32\Lib\distutils\command\build_ext.py", line 472, in _build_extensions_serial
      self.build_extension(ext)
    File "C:\Users\SEANBA~1\AppData\Local\Temp\pip-build-pvc5zlcc\SQLAlchemy\setup.py", line 73, in build_extension
      build_ext.build_extension(self, ext)
    File "C:\Python35-32\Lib\distutils\command\build_ext.py", line 532, in build_extension
      depends=ext.depends)
    File "C:\Python35-32\Lib\distutils\_msvccompiler.py", line 306, in compile
      self.initialize()
    File "C:\Python35-32\Lib\distutils\_msvccompiler.py", line 199, in initialize
      vc_env = _get_vc_env(plat_spec)
    File "c:\test_oauth\venv\lib\site-packages\setuptools\msvc.py", line 206, in msvc14_get_vc_env
      return EnvironmentInfo(plat_spec, vc_ver_min=14.0).return_env()
  TypeError: __init__() got an unexpected keyword argument 'vc_ver_min'

  ----------------------------------------
  Failed building wheel for SQLAlchemy

Answer 1

我找到了问题的答案。

python 的环境变量配置不正确（它已成为自己的系统变量，而不是简单地添加到 'path' 系统变量）。

更改后，问题就消失了。

Virtualenv 错误 - build_ext

Virtualenv error - build_ext

python

virtualenv