python3.7入门系列二 CentOS6/7下源码编译安装python3.7

太过爱你忘了你带给我的痛 2022-02-16 07:58 285阅读 0赞

CentOS6默认安装了python2.6.6，CentOS7默认安装了2.7.5，但是安装python3.7的步骤差不多。

# 1 准备 #

\# mkdir -p /usr/local/python3.7  
\# yum -y install zlib-devel bzip2-devel openssl-devel ncurses-devel sqlite-devel readline-devel tk-devel gcc make libffi-devel xz

# 2 下载源码+解压+编译安装 #

访问 [https://www.python.org/downloads/source/][https_www.python.org_downloads_source] 下载python源码

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2Jvd2VpMDI2_size_16_color_FFFFFF_t_70][]

\# tar Jxvf Python-3.7.3.tar.xz  
\# cd Python-3.7.3  
\# ./configure --prefix=/usr/local/python3.7 --enable-optimizations  
\# make && make install  
\# /usr/local/python3.7/bin/python3      可进入python交互界面

# 3 建软连接 #

\# python -V  
Python 2.6.6  
\# which python  
/usr/bin/python  
\# ls /usr/bin/ | grep python  
python  
python2  
python2.6 或python2.7  
\# mv /usr/bin/python /usr/bin/python.bak   备份之前的python  
\# ln -s /usr/local/python3.7/bin/python3 /usr/bin/python  
\# ln /usr/local/python3.7/bin/pip3 /usr/bin/pip  
\# vi /usr/bin/yum  
\#!/usr/bin/python2.6   CentOS6下改为python2.6，CentOS7下改为python2.7

\# python -V    或 python --version  
Python 3.7.3  
\# pip -V       或 pip --version

pip 19.0.3 from /usr/local/python3.7/lib/python3.7/site-packages/pip (python 3.7)

centos7下还需要修改下面的内容  
\# vi /usr/libexec/urlgrabber-ext-down  
将 \#!/usr/bin/python  改为 \#!/usr/bin/python2.7

# 4 测试 #

# python
    Python 3.7.3 (default, Apr 21 2019, 14:02:49)
    [GCC 4.4.7 20120313 (Red Hat 4.4.7-23)] on linux
    Type "help", "copyright", "credits" or "license" for more information.
    >>> print("hello python")
    hello python
    >>> quit()

\# vi hello.py     输入下面一行内容并保存  
print("hello python3")

然后执行python hello.py

# python hello.py
    hello python3

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![2018111718160012.jpg][]![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2Jvd2VpMDI2_size_16_color_FFFFFF_t_70 1][]

[https_www.python.org_downloads_source]: https://www.python.org/downloads/source/
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2Jvd2VpMDI2_size_16_color_FFFFFF_t_70]: /images/20220216/7538f431954b4448a0c54dfc429b57d5.png
[2018111718160012.jpg]: https://img-blog.csdnimg.cn/2018111718160012.jpg
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2Jvd2VpMDI2_size_16_color_FFFFFF_t_70 1]: /images/20220216/3d0136e0134147b7aa2d7cee4f7fa64c.png