title: Python compiled script giving error of "Can't load plugin: sqlalchemy.dialects:presto"
body: <p>I compiled .py file with pyinstaller as follows:</p>
  
  <pre><code>pyinstaller --hidden-import presto --hidden-import scipy._lib.messagestream  --onefile main.py
  </code></pre>
  
  <p>When I ran the compiled file, I got the error:</p>
  
  <pre><code>sqlalchemy.exc.NoSuchModuleError: Can't load plugin: sqlalchemy.dialects:presto
  </code></pre>
  
  <p>p.s. I used sqlalchemy.engine to connect to presto like:</p>
  
  <pre><code>engine = create_engine('presto://presto.service.example.com:8080/hive/default')
  </code></pre>
  
  <p>I haven't found anything useful on google.</p>