当我运行此命令时，
pip install --upgrade pip安装了所有版本的 pip（在 Linux/2.9.16 中）
我只想将我正在使用的 pip 更新到最新版本。我怎么能解决这个问题？
以下是我从命令中得到的
pip install --upgrade pip
Requirement already satisfied: pip in /opt/python/run/venv/lib/python3.6/site-packages (20.3.2)
Collecting pip
Using cached pip-20.3.2-py2.py3-none-any.whl (1.5 MB)
Using cached pip-20.3.2.tar.gz (1.5 MB)
Installing build dependencies ... done
Getting requirements to build wheel ... done
Installing backend dependencies ... done
Preparing wheel metadata ... done
Using cached pip-20.3.1-py2.py3-none-any.whl (1.5 MB)
Using cached pip-20.3.1.tar.gz (1.5 MB)
Installing build dependencies ... done
Getting requirements to build wheel ... done …