centos6.8 python3环境搭建

Python依赖包

    yum groupinstall "Development tools"
    yum install zlib-devel bzip2-devel openssl-devel ncurses-devel sqlite-devel readline-devel tk-devel gdbm-devel db4-devel libpcap-devel xz-devel

下载Python安装包

    wget --no-check-certificate https://www.python.org/ftp/python/3.5.0/Python-3.5.0.tgz

解压到当前目录

tar -zxvf Python-3.5.0.tgz

cd Python-3.5.0

 ./configure --prefix=/usr/local/python3.5 --enable-shared

make & make install

ln -s /usr/local/python3.5/bin/python3 /usr/bin/python3

如果报错缺少.so文件，我们需要进行如下操作

cp -R /usr/local/python3.5/lib/* /usr/lib64/

安装pip以及setuptools

pip 是下载Python第三方库的命令，安装之前，首先安装setuptools

1.安装setuptools

wget --no-check-certificate  https://pypi.python.org/packages/source/s/setuptools/setuptools-19.6.tar.gz#md5=c607dd118eae682c44ed146367a17e26
tar -zxvf setuptools-19.6.tar.gz

cd setuptools-19.6

python3 setup.py build

python3 setup.py install

报错：RuntimeError: Compression requires the (missing) zlib module
需要安装zlib-devel包

yum install zilb-devel

需要对python3.5进行重新编译安装。

cd python3.5

make & make install

又是漫长的编译安装过程。

重新安装setuptools

python3 setup.py build

python3 setup.py install

2、安装pip

wget --no-check-certificate https://pypi.python.org/packages/source/p/pip/pip-8.0.2.tar.gz#md5=3a73c4188f8dbad6a1e6f6d44d117eeb

tar -zxvf pip-8.0.2.tar.gz

cd pip-8.0.2

python3 setup.py build

python3 setup.py install

如果没有意外的话，pip安装完成。