在CentOS6上安装Python2.7的解决方法

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在CentOS6上yum安装工具是基于Python2.6.6的，所以在CentOS6上默认安装的是Python2.6.6，因为要在服务器系统为CentOS6上部署生产环境，但是代码都是基于Python2.7写的，所有遇到了问题。

探索

发现系统不能卸载Python2.6后，查了系统的版本号

cat /etc/*-release

发现系统版本为CentOS6,于是开始Google搜索怎么解决。

解决办法

重新手动装一个Python2.7

准备阶段

# Start by making sure your system is up-to-date:
yum update
# Compilers and related tools:
yum groupinstall -y "development tools"
# Libraries needed during compilation to enable all features of Python:
yum install -y zlib-devel bzip2-devel openssl-devel ncurses-devel sqlite-devel readline-devel tk-devel gdbm-devel db4-devel libpcap-devel xz-devel expat-devel
# If you are on a clean "minimal" install of CentOS you also need the wget tool:
yum install -y wget

安装Python

下载python2.7并安装

# Get Python 2.7.14:
wget http://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 --enable-unicode=ucs4 --enable-shared LDFLAGS="-Wl,-rpath /usr/local/lib"
make && make altinstall

安装Pip

# First get the script:
wget https://bootstrap.pypa.io/get-pip.py
# Then execute it using Python 2.7
python2.7 get-pip.py
# With pip installed you can now do things like this:
pip2.7 install [packagename]
pip2.7 install --upgrade [packagename]
pip2.7 uninstall [packagename]

创建虚拟环境

最后可以利用venv创建一个虚拟环境（毕竟Python2.6你不能卸载）

# Install virtualenv for Python 2.7 and create a sandbox called my27project:
pip2.7 install virtualenv
virtualenv my27project
试一下？
# Check the system Python interpreter version:
python --version
# This will show Python 2.6.6
# Activate the my27project sandbox:
source my27project/bin/activate
# This will show Python 2.7.4
python --version

总结

以上所述是小编给大家介绍的在CentOS6上安装Python2.7的解决方法，希望对大家有所帮助，如果大家有任何疑问请给我留言，小编会及时回复大家的。在此也非常感谢大家对网站的支持！

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