Python - Auto generate requirements.txt

WHY

We need to track the dependencies that are being used in the application. Its an way to keep track of the modules that are being used with versions.

FORMAT

The requirement file will have the data in this format

requests==1.1.9
Flask==0.9.0

METHODS

PIPREQS

URL:

 https://github.com/bndr/pipreqs

Installation:

pip install pipreqs

Example:

pipreqs /home/project/location

Contents of requirements.txt

wheel==0.23.0
Yarg==0.1.9
docopt==0.6.2

FREEZE

• It's good to use this when using virtual env for your project.
• It saves the packages that are installed with pip install in your environment
• It saves all packages in the environment including those that you don't use in your current project. (if you don't have virtualenv)

How to install dependencies from requirements.txt file

pip install -r <path_to_requirements.txt>

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