Flask is a Python web development framework for rapid prototyping. You can launch web-based applications very quickly in Flask! ?
Problem Formulation: Given a PyCharm project. How to install the Flask library in your project within a virtual environment or globally?
Here’s a solution that always works:
- Open
File > Settings > Project
from the PyCharm menu. - Select your current project.
- Click the
Python Interpreter
tab within your project tab. - Click the small
+
symbol to add a new library to the project. - Now type in the library to be installed, in your example Flask, and click
Install Package
. - Wait for the installation to terminate and close all popup windows.
Here’s the installation process as a short animated video—it works analogously for Flask, just type in “Flask” in the search field instead:

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