title: How do you pip install libraries to the 'antenv' venv on an Azure Web App?
body: <p>I am trying to deploy a Flask app to an Azure Web App (Linux, python3.7 runtime) using FTP.</p>
  
  <p>I copied the "application.py" over and a "requirements.txt", but I can see in the logs that nothing is being installed.</p>
  
  <p>The Web App is using an 'antenv' virtual environment but it won't install anything. How do I add libraries to this 'antenv' virtual environment?</p>