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//old python version >which python /usr/bin/python //old python version >which python2.7 /usr/bin/python2.7 //new python version >which python3.5 /usr/local/bin/python3.5 sudo ln -sf /usr/local/bin/python3.5 /usr/bin/python This will make a symbolic link from /usr/bin/python --> /usr/local/bin/python3.5 (replacing the old hardlink). >python -V Python 3.5.9 //if you want to remove the shortlink >rm /usr/bin/python rm: remove symbolic link '/usr/bin/python'? >y //recover old version to default sudo ln -sf /usr/bin/python2.7 /usr/bin/python |