python3环境_Python3.6 环境升级

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# cd Python-3.6.1

# ./configure --prefix=/usr/local/python3

建立python3的软链

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# ln -s /usr/local/python3/bin/python3 /usr/bin/python3

并将/usr/local/python3/bin加入PATH

按ESC，输入:wq回车退出。

修改完记得执行行下面的命令，让上一步的修改生效：

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# source /etc/profile

检查Python3及pip3是否正常可用：

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# python3 -V

Python

3.6

.

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# pip3 -V

pip

9.0

.

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from

/

usr

/

local

/

python3

/

lib

/

python3.

6

/

site

-

packages (python

3.6

)

不行的话在创建一下pip3的软链接(我也不清楚这一步有什么用)

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# ln -s /usr/local/python3/bin/pip3 /usr/bin/pip3

2、安装pip以及setuptools

丰富的第三方库是python的优势所在，所以需要安装pip命令，方便安装第三方库。

安装pip前需要前置安装setuptools

命令如下：

tar -zxvf setuptools-19.6.tar.gz

cd setuptools-19.6

python3 setup.py build

python3 setup.py install

安装pip，默认自带了pip2

针对pip2的升级操作：

pipinstall--upgradepip

针对pip3的升级操作：

pip3 install --upgrade pip

[root@1st] /data0/laobanang/olmeca$ pip3 install --upgrade pip

Collecting pip

Downloading http://mirrors.tencentyun.com/pypi/packages/62/a1/0d452b6901b0157a0134fd27ba89bf95a857fbda64ba52e1ca2cf61d8412/pip-10.0.0-py2.py3-none-any.whl (1.3MB)

100% |████████████████████████████████| 1.3MB 50.1MB/s

Installing collected packages: pip

Found existing installation: pip 8.0.2

Uninstalling pip-8.0.2:

Successfully uninstalled pip-8.0.2

Successfully installed pip-9.0.1

You are using pip version 9.0.1, however version 10.0.0 is available.

You should consider upgrading via the 'pip install --upgrade pip' command.

[root@1st] /data0/laobanang/olmeca$ pip3 install --upgrade pip

Looking in indexes: http://mirrors.tencentyun.com/pypi/simple

Requirement already up-to-date: pip in /usr/local/python3/lib/python3.6/site-packages (10.0.0)

[root@1st] /data0/laobanang/olmeca$

PS：记录以前的操作命令

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。

文章参考：https://www.cnblogs.com/kimyeee/p/7250560.html