擅长:python、mysql、java
<p>你可以:</p>
<pre><code>sys.path.append('./dir2/dir3')
import packages
</code></pre>
<p>或者更好:</p>
<pre><code>sys.path.append(os.path.join(os.path.dirname(__file__), 'dir2/dir3'))
import packages
</code></pre>
<p>或者(从这里取:<a href="https://stackoverflow.com/questions/67631/how-to-import-a-module-given-the-full-path">How to import a module given the full path?</a>)</p>
<pre><code>import imp
packages = imp.load_source('packages', '/path/to/packages.py')
</code></pre>