Centos源码安装Python2.7（centos源码安装oracle19）

想要学习Python，虽然已经在倒计时了但目前还是python2用的比较多，下面讲下centos下如何源码安装升级到Python2.7

系统环境：Centos 6.5 Basic Server

1. 基础开发库

yum -y install gcc openssl openssl-devel

2. 安装数据库和开发库

yum -y install mysql mysql-devel

3. 安装Python2.7

wget https://www.python.org/ftp/python/2.7.14/Python-2.7.14.tar.xz

tar xf Python-2.7.14.tar.xz

cd Python-2.7.14

./configure --prefix=/usr/local/python27

为了让pip支持ssl需要修改Setup

vim Modules/Setup

219行附近有以下内容，去掉“#”：

#_ssl _ssl.c \

# -DUSE_SSL -I$(SSL)/include -I$(SSL)/include/openssl \

# -L$(SSL)/lib -lssl -lcrypto

然后执行

make -j4

make install

echo "export PATH=/usr/local/python27/bin:$PATH" >> /etc/profile

cd /usr/bin/

mv python python26

ln -s /usr/local/python27/bin/python /usr/bin/python

4. 安装setuptools

cd /root/

wget --no-check-certificate https://pypi.python.org/packages/41/5f/6da80400340fd48ba4ae1c673be4dc3821ac06cd9821ea60f9c7d32a009f/setuptools-38.4.0.zip

unzip setuptools-38.4.0.zip

cd setuptools-38.4.0

/usr/local/python27/bin/python setup.py install

cd /root

wget --no-check-certificate https://bootstrap.pypa.io/get-pip.py

/usr/local/python27/bin/python get-pip.py

ln -s /usr/local/python27/bin/pip /usr/bin/pip

5. 修改yum执行文件否则无法使用

vim /usr/bin/yum

:%s/\/usr\/bin\/python/\/usr\/bin\/python26/