使用pip安装时Python包哈希不匹配

Question

我正在使用pip安装我的所有python包，但得到如下跟踪所示的错误。问题是什么？我该怎么解决？

usr@comp:~$ pip install flask
    Collecting flask
      Using cached Flask-0.11.1-py2.py3-none-any.whl
    Collecting itsdangerous>=0.21 (from flask)
      Using cached itsdangerous-0.24.tar.gz
    Collecting click>=2.0 (from flask)
      Using cached click-6.6.tar.gz
    Collecting Werkzeug>=0.7 (from flask)
      Using cached Werkzeug-0.11.11-py2.py3-none-any.whl
    Requirement already satisfied (use --upgrade to upgrade): Jinja2>=2.4 in /usr/lib/python2.7/dist-packages (from flask)
    Requirement already satisfied (use --upgrade to upgrade): MarkupSafe in /usr/lib/python2.7/dist-packages (from Jinja2>=2.4->flask)
    THESE PACKAGES DO NOT MATCH THE HASHES FROM THE REQUIREMENTS FILE. If you have updated the package versions, please update the hashes. Otherwise, examine the package contents carefully; someone may have tampered with them.
        Werkzeug>=0.7 from https://pypi.python.org/packages/a9/5e/41f791a3f380ec50f2c4c3ef1399d9ffce6b4fe9a7f305222f014cf4fe83/Werkzeug-0.11.11-py2.py3-none-any.whl#md5=c63a21eedce9504d223ed89358c4bdc9 (from flask):
        Expected md5 c63a21eedce9504d223ed89358c4bdc9
             Got        13a168aafcc43354b6c79ef44bb0dc71

Answer 1

我在安装panads时出错了

您需要删除缓存并重新安装。

pip install --no-cache-dir flask