centos7python命令_02.将python3作为centos7的默认python命令
博客為日常工作學習積累總結:
由于個人興趣愛好對python有了解:
1.安裝Python3:
參考博客:https://zhuanlan.zhihu.com/p/47868341
安裝依賴包:
yum -y install zlib zlib-devel
yum -y install bzip2 bzip2-devel
yum -y install ncurses ncurses-devel
yum -y install readline readline-devel
yum -y install openssl openssl-devel
yum -y install openssl-static
yum -y install xz lzma xz-devel
yum -y install sqlite sqlite-devel
yum -y install gdbm gdbm-devel
yum -y install tk tk-devel
yum -y install gcc
下載安裝包:wget https://www.python.org/ftp/python/3.6.5/Python-3.6.5.tgz
編譯安裝:tar zxf Python-3.6.5.tgz ? ???cd Python-3.6.5
安裝到指定目錄:./configure --with-ssl --prefix=/application/python3
返回信息:
如下提示檢查通過:
If you want a release build with all optimizations active (LTO, PGO, etc),
please run ./configure --enable-optimizations
使用make進行編譯:make
安裝:make install
安裝完成:
Collecting setuptools
Collecting pip
Installing collected packages: setuptools, pip
Successfully installed pip-9.0.1 setuptools-28.8.0
將python3作為的python命令:mv /usr/bin/python /usr/bin/python2.back
ln -s /application/python3/bin/python3 /usr/bin/python
設置pip3為全局默認pip
ln -n /application/python3/bin/pip3 /usr/bin/pip
修改yum命令依賴的Python2:
vi /usr/bin/yum
#!/usr/bin/python2
vi /usr/libexec/urlgrabber-ext-down
#! /usr/bin/python2
2.安裝python虛擬環境:
pip install virtualenv
yum?install?python-virtualenv
當前路徑:/application/movie
創建虛擬環境:python -m venv venvmovie
進入虛擬環境:source venvmovie/bin/activate
退出虛擬環境:deactivate
總結
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