How do I manage virtual environment requirements in Python?

What is the best way to manage dependencies in a Python virtual environment?

Using a virtual environment is a great way to manage dependencies. You can use tools like pip and requirements.txt.

How do I create a requirements.txt file?

You can create a requirements.txt file by running pip freeze > requirements.txt in your virtual environment.

Can I install packages directly from requirements.txt?

Yes, you can install all the packages listed in requirements.txt by running pip install -r requirements.txt.

What if I want to update a package in my requirements?

You can update a package by specifying the new version in requirements.txt and then running pip install -r requirements.txt again.