python之无法在虚拟环境中 pip

我正在尝试在我的虚拟环境中安装 django-rq 但我遇到了这个错误:

pip 安装 django-rq

Collecting rq>=0.3.4 (from django-rq) 
  Using cached rq-0.5.1-py2.py3-none-any.whl 
  Hash of the package https://pypi.python.org/packages/py2.py3/r/rq/rq-0.5.1- py2.py3-none-any.whl#md5=45418bdc995c394b4293180a4c29cb88 (from  
https://pypi.python.org/simple/rq/) (e9d365b19b099235441599de78b25042)   doesn't match the expected hash 45418bdc995c394b4293180a4c29cb88! 
  Bad md5 hash for package https://pypi.python.org/packages/py2.py3/r/rq/rq-0.5.1-py2.py3-none-any.whl#md5=45418bdc995c394b4293180a4c29cb88 (from https://pypi.python.org/simple/rq/) 

我尝试在虚拟环境之外安装它，它运行得非常好。但我不确定为什么它没有安装在虚拟环境中。

请您参考如下方法:

似乎 pip 正在尝试从本地缓存安装模块，请参阅此处了解更多详细信息:How do I install from a local cache with pip?

尝试使用这样的东西:

pip install --no-cache-dir django-rq