Installing and importing packages

Now that we are inside the covid directory and our virtual environment has been created, it’s time to install all the packages we are going to use in our web application.

We need five different libraries:

• Streamlit, our wonderful framework for web applications
• numpy, a library for advanced numeric calculations
• tensorflow, the package needed to manage neural networks
• Pillow, a library for image management
• opencv-python, the computer vision package

Let’s install everything by typing the following instructions one by one:

pipenv install streamlit numpy tensorflow Pillow opencv-python

This installation can take a little while. When it finishes, we should have something like this on our screen:

Figure 8.2: Package installation

We can now launch our editor, Sublime Text. You’ll see that in the covid directory, there are now the two famous files, Pipfile and Pipfile...