Flask is a lightweight Python web framework used to build web applications and APIs. Before installing Flask, Python and pip should be available on your system.
- Flask can be installed using Python's package manager, pip.
- Using a virtual environment keeps Flask and other project dependencies isolated.
- The installation process is similar across Windows, macOS, and Linux.
Installation
Before installing Flask, make sure Python is installed on your system.
python --version
On some macOS and Linux systems, use:
python3 --version
If these commands display the installed versions, you can proceed with the Flask installlation.
Windows
Flask recommends using a virtual environment so that packages installed for one project do not interfere with other projects.
1. Install flask using pip:
pip install Flask
2. Verify that Flask was installed successfully:
flask --version
If the installation was successful, the command displays the installed Flask version along the related package information.
Linux/macOS
Here, as well it is recommended to use virtual environment, for the particular Flask project.
1. Install Flask using pip command:
pip install Flask
2. Check if Flask is successfully installed or not. Open the python shell and try to import Flask is installed correctly:
