Centos7环境安装Python3的方法
<p>本文实例讲述了centos7环境安装python3的方法。分享给大家供大家参考，具体如下：</p>
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由于centos7原本就安装了python2，而且这个python2不能被删除，因为有很多系统命令，比如yum都要用到。</p>
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<code class="bash plain"></code><code class="bash comments"># python</code>
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<code class="bash plain">python 2.7.5 (default, aug 4 2017, 00:39:18)</code>
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<code class="bash plain"> on linux2</code>
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<code class="bash functions">type</code> <code class="bash string">"help"</code><code class="bash plain">, </code><code class="bash string">"copyright"</code><code class="bash plain">, </code><code class="bash string">"credits"</code> <code class="bash plain">or </code><code class="bash string">"license"</code> <code class="bash keyword">for</code> <code class="bash functions">more</code> <code class="bash plain">information.</code>
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输入python命令，查看可以得知是python2.7.5版本</p>
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输入</p>
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<code class="bash functions">which</code> <code class="bash plain">python</code>
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可以查看位置，一般是位于/usr/bin/python目录下。</p>
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<span><strong>下面介绍安装python3的方法</strong></span></p>
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首先安装依赖包</p>
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<code class="bash plain">yum -y groupinstall </code><code class="bash string">"development tools"</code>
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<code class="bash plain">yum -y </code><code class="bash functions">install</code> <code class="bash plain">zlib-devel </code><code class="bash functions">bzip2</code><code class="bash plain">-devel openssl-devel ncurses-devel sqlite-devel readline-devel tk-devel gdbm-devel db4-devel libpcap-devel xz-devel</code>
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然后根据自己需求下载不同版本的python3，我下载的是python3.6.2</p>
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<code class="bash plain">wget https:</code><code class="bash plain">//www</code><code class="bash plain">.python.org</code><code class="bash plain">/ftp/python/3</code><code class="bash plain">.6.2</code><code class="bash plain">/python-3</code><code class="bash plain">.6.2.</code><code class="bash functions">tar</code><code class="bash plain">.xz</code>
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如果速度不够快，可以直接去官网下载，利用winscp等软件传到服务器上指定位置，我的存放目录是/usr/local/python3，使用命令：</p>
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<code class="bash functions">mkdir</code> <code class="bash plain">/usr/local/python3</code>
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建立一个空文件夹</p>
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然后解压压缩包，进入该目录，安装python3</p>
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<code class="bash functions">tar</code> <code class="bash plain">-xvjf python-3.6.2.</code><code class="bash functions">tar</code><code class="bash plain">.xz</code>
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<code class="bash functions">cd</code> <code class="bash plain">python-3.6.2</code>
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<code class="bash plain">.</code><code class="bash plain">/configure</code> <code class="bash plain">--prefix=</code><code class="bash plain">/usr/local/python3</code>
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<code class="bash functions">make</code> <code class="bash plain">&& </code><code class="bash functions">make</code> <code class="bash functions">install</code>
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最后创建软链接</p>
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<code class="bash functions">ln</code> <code class="bash plain">-s </code><code class="bash plain">/usr/local/python3/bin/python3</code> <code class="bash plain">/usr/bin/python3</code>
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<code class="bash functions">ln</code> <code class="bash plain">-s </code><code class="bash plain">/usr/local/python3/bin/pip3</code> <code class="bash plain">/usr/bin/pip3</code>
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在命令行中输入python3测试</p>
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<img style="max-width:100%!important;height:auto!important;"title="Centos7环境安装Python3的方法" alt="Centos7环境安装Python3的方法" src="https://zhuji.jb51.net/uploads/img/202305/3bb70571951c5efe29515f6f8c7e2b96.jpg"></p>
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希望本文所述对大家centos服务器配置有所帮助。</p>
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原文链接：http://www.cnblogs.com/mr-amazing/p/8579887.html</p>
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