python-2.7 - MarkupSafe、SQLAlchemy 和 pycrypto 失败，因为 wheel 构建失败

Question

使用最新版本的 python 2.7、setuptools、pip 和 wheel 运行 windows。尝试使用

安装依赖项

pip install -r requirements.txt

因为“一个或多个轮子未能构建”而失败。日志:

Building wheels for collected packages: MarkupSafe, SQLAlchemy, pycrypto
  Running setup.py bdist_wheel for MarkupSafe: started
  Running setup.py bdist_wheel for MarkupSafe: finished with status 'error'
  .
  .
  .
  Failed to build wheel for MarkupSafe

  Running setup.py bdist_wheel for SQLAlchemy: started
  Running setup.py bdist_wheel for SQLAlchemy: finished with status 'error'
  .
  .
  .
  Failed to build wheel for SQLAlchemy

  Running setup.py bdist_wheel for pycrypto: started
  Running setup.py bdist_wheel for pycrypto: finished with status 'error'
  .
  .
  .
  Failed to build wheel for pycrypto

  Failed to build MarkupSafe SQLAlchemy pycrypto

(删除了完整的输出，因为超过了字符限制，但都达到了某个点然后说找不到某些文件)

但是根据http://pythonwheels.com/这些包没有轮子，那么为什么 pip 试图为它们构建轮子？

Answer 1

尝试改用 python -m easy_install SQLAlchemy。