Python Tutorial | Install Python Libraries using Requiremets File (Requirements.txt)

In this video I am going to show you how to install Python libraries using a Requirement file.

Let’s say you create a Python virtual environment for creating a prototype for a desktop application. In the virtual environment you installed bunch libraries, some of them are needed to make the application working, some are not. Three months later, you finish building the application and is ready to release to the public. The problem is, you only want to package the application with required Python libraries instead of all the libraries in the virtual environment. That’s when having a Requirement file can be very helpful.

The Requirements is a text file tells Python that, look at the list of the libraries in the Requirements file, and only install the libraries listed in the Requirements file.

In this video I will walk you through how to generate a Requirement file, and how to install Python libraries use the Requirements file.

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[slickwillie]

Thanks! I'm just beginning to learn virtual environments. It' s a great video!

[OPPACHblu_channel]

thank for your tutorial, very helpful 👍

[Humani]

What if error comes in between, how to make sure the libs mentioned below to this at least get downloaded

[techrahoul]

Hi Jie, Can we ignore any package not to install while installing the requirements.txt

[kinvob]

Im new in these, if i'll just type . scripts/activate it tells me "bash: scripts/activate: No such file or directory
", idk

[andrewgillim]

I get the error "invalid syntax" when I literally do any pip command!

[anatitans]

Thank you so much for this video, I was stuck from couple of days and this video saved my ass, thank you again and also I have another error : Error loading ASGI app. Could not import module "main". Could you help me resolve this?

[manpreetsingh]

Getting conflict error. Pls address this