Reqirements.txt - do I need to write packages from the standard library?

Question

Python

Do I need to write packages that are part of the python standard library in the requirements.txt file?
For example, packages such as copy, json

Answer 1

No, they come with an interpreter

Answer 2

Run pip freeze > Reqirements.txt in the activated virtualenv. This command will automatically generate the Reqirements.txt file and put all the necessary libraries and versions into it.