title: AWS Lambda Python3.7 Function - numpy: cannot import name 'WinDLL'
body: <p>I have a function set up in <em>lambda</em> that runs a python script from a <em>.zip</em> file. I have created a <code>virtualenv</code> and included all of the necessary packages in the <em>.zip</em> file (from the <code>Lib\site-packages</code> folder).</p>
  
  <p>Below are the import statements for the packages used in the script:</p>
  
  <pre><code>import requests
  import boto3
  import logging
  import os
  from botocore.exceptions import ClientError
  from pprint import pprint
  import pandas as pd
  from datetime import datetime
  import s3fs
  </code></pre>
  
  <p>When I attempt to run the <em>lambda function</em> I am receiving the following error:</p>
  
  <pre><code>START RequestId: e302cee0-3c51-453a-84c1-6eb1f9c123a0 Version: $LATEST
  [ERROR] Runtime.ImportModuleError: Unable to import module 'export-dev': Unable to import required dependencies:
  numpy: cannot import name 'WinDLL' from 'ctypes' (/var/lang/lib/python3.7/ctypes/__init__.py)
  END RequestId: e302cee0-3c51-453a-84c1-6eb1f9c123a0
  REPORT RequestId: e302cee0-3c51-453a-84c1-6eb1f9c123a0  Duration: 1.65 ms   Billed Duration: 100 ms     Memory Size: 128 MB Max Memory Used: 70 MB  
  
  </code></pre>
  
  <p>I do not use the <code>ctypes</code>, <code>WinDLL</code> or any related packages explicitly in my code.</p>