pip download error cannot import name 'FormatControl'

When I downloaded the plugin through pip install in pycharm today, I do n’t know what went wrong

Solution: reduce the version of pip

pip download address: https://pypi.org/project/pip/19.1.1/#files

Unzip after downloading, and enter the unzipped file

Input

python setup.py install

After that, pip was successfully demoted and the error was resolved