python2.7.X 升級至Python3.6.X
安裝Python3
項目是在py3環境下進行編碼的,正好yczhang默認的py版本是2,我們還需要安裝py3才能讓程序run起來,在此之前,需要安裝開發工具包,因為要編譯安裝Python
[root@yczhang ~]# yum -y group install "Development Tools"
安裝Python的依賴包,不安裝依賴可能安裝完成後沒有pip3 軟件。
[root@yczhang ~]# yum -y install openssl-devel bzip2-devel expat-devel gdbm-devel readline-devel sqlite-devel vim
下載目前最新的Python3.6.x
1 [root@yczhang ~]# wget https://www.python.org/ftp/python/3.6.0/Python-3.6.0.tgz
可能你需要通過yum -y install wget
解壓編譯安裝
[root@yczhang ~]# tar xf Python-3.6.0.tgz
[root@yczhang ~]# cd Python-3.6.0
[root@yczhang Python-3.6.0]# ./configure --prefix=/usr/local/python3.6
[root@yczhang Python-3.6.0]# make
[root@yczhang Python-3.6.0]# make altinstall
為pip3和python3創建鏈接
[root@yczhang Python-3.6.0]# ln -fs /usr/local/python3.6/bin/python3 /usr/local/bin/
[root@yczhang Python-3.6.0]# ln -fs /usr/local/python3.6/bin/pip3 /usr/local/bin/
[root@yczhang Python-3.6.0]# mv /usr/bin/python /usr/bin/python_old
[root@yczhang Python-3.6.0]# ln -fs /usr/local/python3.6/bin/python3.6 /usr/bin/python
[root@yczhang Python-3.6.0]# ln -fs /usr/local/python3.6/bin/pip3.6 /usr/bin/pip
驗證安裝
[root@yczhang Python-3.6.0]# pip -V
pip 9.0.1 from /usr/local/python3.5/lib/python3.5/site-packages (python 3.6)
[root@yczhang Python-3.6.0]# python -V
Python 3.6.0
修改yum文件,否則yum將無法下載
vim /usr/bin/yum
將
#!/usr/bin/python
修改為
#!/usr/bin/python2.7
保存即可生效
python2.7.X 升級至Python3.6.X