ubuntu中python版本問題
阿新 • • 發佈:2018-11-13
install pip3
在python3環境下安裝包,輸入:
pip3 install matplotlib
(注:系統可能提示你在這之前需要安裝pip3:The program ‘pip3’ is currently not installed. You can install it by typing: >sudo apt install python3-pip)
安裝完成後依次輸入
python 3
import matplotlib
如果沒有報錯說明安裝成功
解除安裝命令:
sudo pip uninstall matplotlib
sudo pip3 uninstall matplotlib
關於版本檢視:
新增PPA:
sudo add-apt-repository ppa:jonathonf/python-3.6
檢視更新和安裝更新:
sudo apt-get update #貌似是檢查並安裝全部更新?好像可以忽略
sudo apt-get install python3.6
更換命令列中的python預設版本
sudo update-alternatives --install /usr/bin/python python /usr/bin/python2 100
sudo update-alternatives --install /usr/bin/python python /usr/bin/python3 150
or
alias python=python3
# To revert back:
alias python=python2
檢視python預設版本
python -V
切換版本:
sudo update-alternatives --config python3
remove python3:
sudo apt-get remove 'python3.*'
切換版本:
sudo update-alternatives --config python3
Ubuntu中python升級到3.6
sudo add-apt-repository ppa:jonathonf/python-3.6
sudo apt-get update
sudo apt-get install python3.6
sudo apt install spyder3
sudo rm /usr/bin/python
sudo ln -s /usr/local/bin/python3.6 /usr/bin/python
sudo update-alternatives --install /usr/bin/python3 python3 /usr/bin/python3.5 1
sudo update-alternatives --install /usr/bin/python3 python3 /usr/bin/python3.6 2
sudo update-alternatives --config python3
python -V
修改為對應的pip版本
wget https://bootstrap.pypa.io/get-pip.py --no-check-certificate
sudo python get-pip.py