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

# 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

# ./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

# 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

[[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：

# python -V
# pip -V