How to install package using pip and save name to file to install it later

Question

I'd like to do something like pip install requests --save packages.txt so I could have list of all I used and later I could just pip -r install packages.txt when I clone it from repository.

Answer 1

you can use freeze to dump all the installations to your .txt file as:

 pip freeze > requirements.txt

And, you can run following later when needed :

 pip install -r requirements.txt