Centos7.2-Python3.5安装

1.下载包

wget https://www.python.org/ftp/python/3.5.2/Python-3.5.2.tgz

2.安装依赖库

依赖库不安装好，会出现没有pip的情况

yum install -y gcc gdb strace gcc-c++ autoconf libjpeg libjpeg-devel libpng libpng-devel freetype freetype-devel \
libxml2 libxml2-devel zlib zlib-devel glibc glibc-devel glib2 glib2-devel bzip2 bzip2-devel ncurses ncurses-devel \
curl curl-devel e2fsprogs patch e2fsprogs-devel krb5-devel libidn libidn-devel openldap-devel nss_ldap \
openldap-clients openldap-servers libevent-devel libevent openssl openssl-deve sqlite-devel -y

3.编译

python:~/tools #tar zxfv Python-3.5.2.tgz 
python:~/tools #cd Python-3.5.2
python:~/tools/Python-3.5.2 #./configure --prefix=/usr/local/python3
python:~/tools/Python-3.5.2 #make && make install  

4.初始化

python:/usr/local #pwd
/usr/local
python:/usr/local #ls python3/bin/
2to3  2to3-3.5  easy_install-3.5  idle3  idle3.5  pip3  pip3.5  pydoc3  pydoc3.5  python3  python3.5  python3.5-config  python3.5m  python3.5m-config  python3-config  pyvenv  pyvenv-3.5
python:/usr/local #ln -s /usr/local/python3 python

python:/usr/local #tail -1 ~/.bash_profile  
export PATH=$PATH:/usr/local/python/bin/
python:/usr/local #. ~/.bash_profile

5.配置pip使用阿里云源

python:~/tools #cat ~/.pip/pip.conf
[global]
index-url = http://mirrors.aliyun.com/pypi/simple/
[install]
trusted-host=mirrors.aliyun.com

6.安装虚拟环境（配置到第五步即可，之后步骤按需）

python:~ #pip3  install virtualenv
python:~ #pip3 install virtualenvwrapper
python:~ #pip list
Package           Version
----------------- -------
pbr               5.4.4  
pip               20.0.2 
setuptools        20.10.1
six               1.14.0 
stevedore         1.31.0 
virtualenv        16.7.9 
virtualenv-clone  0.5.3  
virtualenvwrapper 4.8.4  


python:~ #rpm -qa|grep python 
python-2.7.5-34.el7.x86_64
dbus-python-1.1.1-9.el7.x86_64
python:~ #mv /usr/bin/python /opt
python:~ #ln -s /usr/local/python3/bin/python3 /usr/bin/python

python:~ #mkdir ~/.virtualenvs
python:~ #tail -2 ~/.bash_profile                              
export WORKON_HOME=$HOME/.virtualenvs
source /usr/local/python3/bin/virtualenvwrapper.sh
python:~ #. ~/.bash_profile