centos7 安裝python3.6
安裝python3.6可能使用相關軟體
# yum groupinstall 'Development Tools'# yum install -y ncurses-libs zlib-devel mysql-devel bzip2-devel openssl-devel ncurses-devel sqlite-devel readline-devel tk-devel gdbm-devel db4-devel libpcap-devel xz-devel安裝python3.6.5
下載的安裝包存放在/usr/local目錄
# cd /usr/local# wget https://www.python.org/ftp/python/3.6.5/Python-3.6.5.tar.xz
解壓：
# tar -xf Python-3.6.5.tar.xz解壓後新建資料夾將Python-3.6.5放在/usr/local/python3下
進入該目錄····························一定要進去的哈，不然安裝會出錯
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# mkdir python3 -
# mv Python-3.6.5 python3 -
# cd python3/Python-3.6.5
執行如下程式碼安裝
···························--prefix選項是配置安裝的路徑,執行後所有資原始檔放在/usr/local/python3.6的路徑中
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# ./configure --prefix=/usr/local/python3 --enable-optimizations -
# make -
# make altinstall
修改軟連結：
修改之前一定要對以存在的/usr/bin/python更名，否則出現如下錯誤
ln: failed to create symbolic link ‘/usr/bin/python’: File exists
可修改為：
# mv python python_old
························當然任意名字都可
終於可以修改軟連結了
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# ln -s /usr/local/python3/bin/python3 /usr/bin/python -
# ln -s /usr/local/python3/bin/pip3 /usr/bin/pip
最後修改yum/gnome-tweak-tool/urlgrabber配置檔案，否則之後使用yum可能報錯
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[[email protected]_0_8_centos bin]# ls -ol yum* -
-rwxr-xr-x 1 root 802 May 24 23:05 yum -
-rwxr-xr-x 1 root 9430 May 24 23:06 yum-builddep -
-rwxr-xr-x 1 root 9040 May 24 23:05 yum-config-manager -
-rwxr-xr-x 1 root 7610 May 24 23:06 yum-debug-dump -
-rwxr-xr-x 1 root 7904 May 24 23:07 yum-debug-restore -
-rwxr-xr-x. 1 root 10999 Aug 11 2017 yumdownloader -
-rwxr-xr-x 1 root 11032 May 24 23:07 yum-groups-manager
以上檔案都要修改檔案行首處 #!/usr/bin/python
改為 #!/usr/bin/python2
輸入：
# vim yum-builddep
[[email protected]_0_8_centos bin]# vim yum-builddep
#!/usr/bin/python -tt !!!!!!!!!!!!!!!!!!就是改這裡 加個2 ·················哈哈
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
····························省略一萬字
gnome-tweak-tool/urlgrabber配置檔案修改同上 ·········gnome-tweak-tool可能無須配置
最後檢視安裝版本：
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# python -V -
# pip -V
