
[root@localhost pythonProject1]# python -m pip install --upgrade pip
/usr/bin/python: No module named pip
[root@localhost pythonProject1]# python3 -m pip install --upgrade pip
python3 -m pip install numpy

[root@localhost pythonProject1]# python -m pip install --upgrade pip
/usr/bin/python: No module named pip
[root@localhost pythonProject1]# python3 -m pip install --upgrade pip
python3 -m pip install numpy