Installation and repair of the Python centos yum

date: 2019-07-01  18:09:53

author: headsen chen

notice: personal original

1, the installation python3.7 :
 yum the install zlib -devel bzip2-devel-devel OpenSSL the ncurses-devel SQLite the readline-devel devel-TK-GCC devel the make -Y 
wget https://www.python.org/ftp/python/3.7 .0 / Python-3.7.0a1.tgz 
the tar-3.7.0a1.tgz -xzvf Python 
CD-3.7.0a1 Python 
./configure --prefix = / usr / local / python3.7 
the make the make && altinstall 

2 , the modified Python environment variables
 mv / usr / bin / Python /usr/bin/python2.7.5 
LN /usr/local/python3.7/bin/python3.7 -s / usr / bin / Python 

3 , repair yum:
 sed -i '1S /python/python2.7.5/ '/ usr / bin / yum 
Sed -i' lS / Python / python2.7.5 / '/ usr / libexec / urlgrabber-EXT-Down