(PY) Upgrading pip and installing json package don't work

Question

Q1. I entered python -m pip install --upgrade pip and it answered that regularly worked. But, when I check it again by pip list, it was found that the version has been not changed. How can I solve this problem?

Q2. pip install json also doens't work!

This is PyCharm on Windows 8.1 K.

Answer 1

JSON是python标准库的一部分。

您不需要安装它，只需导入json

https://docs.python.org/3/library/json.html

Answer 2

我终于解决了Q1的问题，方法是直接删除先前版本的点，然后再次安装其最新版本，如下所示。 ：