title: ERROR: Directory is not installable. Neither 'setup.py' nor 'pyproject.toml'
body: <p>I've got the following error:</p>
  
  <pre><code>ERROR: Directory is not installable. Neither 'setup.py' nor 'pyproject.toml'
  </code></pre>
  
  <p>Background is that I'm following a guide online to expose an ML model via API Gateway on AWS that can be found here:
  <a href="https://towardsdatascience.com/hosting-your-ml-model-on-aws-lambdas-api-gateway-part-1-9052e6b63b25" rel="noreferrer">Hosting your ML model on AWS Lambdas + API Gateway</a></p>
  
  <p>I'm trying to pull some python packages into a local folder using the following command:</p>
  
  <pre><code>pip install -r requirements.txt --no-deps --target python/lib/python3.6/site-packages/
  </code></pre>
  
  <p>I have also tried this:</p>
  
  <pre><code>pip install -r requirements.txt --no-deps -t python/lib/python3.6/site-packages/
  </code></pre>
  
  <p>and all I get is the above error.
  Google is pretty bare when it comes to help with this issue, any ideas?</p>
  
  <p>thanks,</p>