擅长:python、mysql、java
<p>因为您的系统中都安装了Python的两个版本,所以您需要将默认的Python指向python3.x。在</p>
<blockquote>
<p>Open your .bashrc file nano ~/.bashrc. Type alias python=python3 on to a new line at the top of the file then save the file with ctrl+o and close the file with ctrl+x. Then, back at your command line type source ~/.bashrc. Now your alias should be permanent.</p>
<p>EDIT:</p>
<p>For update alternatives, the priority is an integer. The priority represents which program should be the first used. This article sums it all up pretty well.</p>
</blockquote>
<p>下面是相关的问题:<a href="https://stackoverflow.com/a/41986843/4982185">https://stackoverflow.com/a/41986843/4982185</a></p>