|NO.Z.00001|——————————|^^ 部署 ^^|——|Hadoop&Hive.V01|——|Hive.v01|linux升级Python|python2.7.25~2.7.15|

一、centos7.x自带的Python版本为2.7.5

### --- 查看Python版本

[root@linux122 ~]# python --version
Python 2.7.5

二、升级Python版本

### --- 下载并升级Python

~~~     # 下载最新版本的python包:
[root@linux122 ~]# wget https://www.python.org/ftp/python/2.7.15/Python-2.7.15.tgz

~~~     # 解压压缩包
[root@linux122 ~]# tar xvf Python-2.7.15.tgz

~~~     # 指定安装路径
[root@linux122 ~]# cd Python-2.7.15
[root@linux122 ~]# ./configure --prefix=/usr/local/python2.7

~~~     # 编译并安装
[root@linux122 ~]# make
[root@linux122 ~]# make install

~~~     # 删除原指向链接，并重新链接

[root@linux122 ~]# rm -f /usr/bin/python
[root@linux122 ~]# ln -s /usr/local/python2.7/bin/python /usr/bin/python

### --- 配置yum参数
~~~     python升级成功：当删除原链接后，因为yum依赖python,yum将不能使用,此处我们先修复yum。

~~~     # 配置yum指定的Python参数
[root@linux122 ~]# vim /usr/bin/yum
#!/usr/bin/python  --->  #!/usr/bin/python2.7

[root@linux122 ~]# vim /usr/libexec/urlgrabber-ext-down
#!/usr/bin/python  --->  #!/usr/bin/python2.7

三、升级pip和setuptools

### --- 下载资源包并解压

~~~     # 下载版本包
[root@linux122 ~]# wget https://files.pythonhosted.org/packages/a6/5b/f399fcffb9128d642387133dc3aa9bb81f127b949cd4d9f63e5602ad1d71/setuptools-39.1.0.zip
[root@linux122 ~]# wget https://files.pythonhosted.org/packages/ae/e8/2340d46ecadb1692a1e455f13f75e596d4eab3d11a57446f08259dee8f02/pip-10.0.1.tar.gz

~~~     # 解压
[root@linux122 ~]# tar xvf pip-10.0.1.tar.gz
[root@linux122 ~]# unzip setuptools-39.1.0.zip

### --- 安装setuptools

~~~     # 安装setuptools
[root@linux122 ~]# cd setup-tools-39.1.0
[root@linux122 ~]# python setup.py install

~~~     # 如果没有zlib包会报错：
[root@linux122 ~]# yum -y install zlib zlib-devel
[root@linux122 ~]# cd Python-2.7.15
[root@linux122 ~]# make clean
[root@linux122 ~]# make
[root@linux122 ~]# make install

~~~     # 安装成功后重新执行
[root@linux122 ~]# cd setup-tools-39.1.0
[root@linux122 ~]# python setup.py install

### --- 安装pip

~~~     # 安装pip
[root@linux122 ~]# cd pip-10.0.1
[root@linux122 ~]# python setup.py install

~~~     # 创建pip软链
[root@linux122 ~]# ln -s /usr/local/python2.7/bin/pip /usr/bin/pip

### --- 验证pip

[root@linux122 ~]# pip

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Walter Savage Landor:strove with none,for none was worth my strife.Nature I loved and, next to Nature, Art:I warm'd both hands before the fire of life.It sinks, and I am ready to depart

                                                                                                                                                   ——W.S.Landor

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