python – pipenv setup命令中的错误：’install_requires’必须是包含有效项目/版本要求说明符的字符串或字符串列表

nathan@DESKTOP-KKB4QL2:/mnt/c/Users/Nathan/Dropbox$pip install pipenv
Downloading/unpacking pipenv
  Downloading pipenv-11.7.1.tar.gz (5.0MB): 5.0MB downloaded
  Running setup.py (path:/tmp/pip_build_nathan/pipenv/setup.py) egg_info for package pipenv
    error in pipenv setup command: 'install_requires' must be a string or list of strings containing valid project/version requirement specifiers
    Complete output from command python setup.py egg_info:
    error in pipenv setup command: 'install_requires' must be a string or list of strings containing valid project/version requirement specifiers

----------------------------------------
Cleaning up...
Command python setup.py egg_info failed with error code 1 in /tmp/pip_build_nathan/pipenv
Storing debug log for failure in /home/nathan/.pip/pip.log

我试图更新pip,但这只是导致异常.

我尝试的时候遇到了这个问题

pip install --user pipenv

当我尝试时修复了(在MacOS sierra上)

sudo -H pip3.6 install -U pipenv

谢谢