title: Unable to import numpy 1.19.1 in AWS Lambda No module named 'numpy.core._multiarray_umath'
body: <p>I am unable to import numpy 1.19.1 in AWS Lambda with python3.8 on AWS Lambda</p>
  <p>I am using the following dependencies:</p>
  <ul>
  <li>pandas 1.1.0</li>
  <li>pyarrow 1.0.0</li>
  <li>numpy 1.19.1</li>
  <li>psycopg2 2.8.5</li>
  </ul>
  <p>Because I work on a windows environment, I created an EC2 Linux instance installed python3.8 and downloaded all required libraries, then I added them into the project, but the moment I try to import pandas I get the following:</p>
  <pre><code>[ERROR] ImportError: Unable to import required dependencies:
  numpy: 
  
  IMPORTANT: PLEASE READ THIS FOR ADVICE ON HOW TO SOLVE THIS ISSUE!
  
  Importing the numpy c-extensions failed.
  - Try uninstalling and reinstalling numpy.
  - If you have already done that, then:
    1. Check that you expected to use Python3.8 from &quot;/var/lang/bin/python3.8&quot;,
       and that you have no directories in your PATH or PYTHONPATH that can
       interfere with the Python and numpy version &quot;1.18.2&quot; you're trying to use.
    2. If (1) looks fine, you can open a new issue at
       https://github.com/numpy/numpy/issues.  Please include details on:
       - how you installed Python
       - how you installed numpy
       - your operating system
       - whether or not you have multiple versions of Python installed
       - if you built from source, your compiler versions and ideally a build log
  
  - If you're working with a numpy git repository, try `git clean -xdf`
    (removes all files not under version control) and rebuild numpy.
  
  Note: this error has many possible causes, so please don't comment on
  an existing issue about this - open a new one instead.
  
  Original error was: No module named 'numpy.core._multiarray_umath'
  
  Traceback (most recent call last):
    File &quot;/var/task/src/py38-lib-test.py&quot;, line 28, in py38test
      import pandas
    File &quot;/tmp/lib/pandas/__init__.py&quot;, line 16, in &lt;module&gt;
      raise ImportError(END RequestId: 07762380-1fc4)
  </code></pre>
  <p>Lastly, I noticed AWS Lambda provides a layer with numpy and sci-kit, I tried removing my numpy version but kept the rest and added the layer to the function, but the same error occurs.</p>
  <p>Thanks in advance your comments.</p>