Python Tutorial | Flask + Gunicorn Hello World

The default development server for flask is not suited for production environments. Gunicorn is a simple WSGI client written in pure python. This video is a general introduction to running a flask application with Gunicorn.

[cheatsheet]

Great tutorial. Simple, concise and to the point.

[essamazzam]

straight to the point, , not waisting a second in the video, thanks

[EnglishRain]

Thank you for the excellent tutorial! Just a suggestion for future videos: please increase your text size, was really difficult to see the code you were typing in VSCode.

[erikjones]

Super simple but a great intro! You have great potential as a youtuber!

[naveendennis]

Hey Andrew, I just saw that you recently started uploading videos. I wanted to encourage you to continue uploading. I subscribed and liked your video to help push this video for the youtube's recommendation system.

[avinashmangipudi]

very brief and to the point..thanks :)

[sekhar]

Hey Andrew, thanks for video, helped me setup gunicorn on my machine, and we are going to use it in prod soon, thanks

[cheenamaejafar]

Thanks for this straight forward tutorial on gunicorn...batman..

[rashidulislam]

Can I post to gunicorn like I did with flask? Apparently its not working for me.

[optimistcarrot]

Annoying bug: gunicorn conflicts with the argparse module, creating `gunicorn: error: unrecognized arguments: ` error if not properly handled (for instance using if __name__ =="__main__": on the nested module)

[ochbolton]

How do I get this to work on windows 10?

[kianow]

Hey Andrew, I was wondering how do you go and tweak gunicorn settings later on

[queezzy]

Does the number of means of workers means the app( with all its variables) are duplicated ?
If yes, if i am running a machine learning model and i want to store some data in memory to be accessible to every workers, is that possible with gunicorn ?

[CodeTerra]

By default my gunicorn taking the python version 3.8 but I want to use python 3.6
How can I change the python version for gunicorn

[sukirtiarya]

How do you pass arg while running the app via gunicorn

[georgesmith]

You also need to set it as a service, because if for some reason crashes it will not start again

[cdgarzon]

What terminal are you using with VSCode? I want that feature where it suggest the command as you type based on your command history. Thanks for the video!

[davehouser]

The requirements.txt file is not in the branch you shared.
I looked at your .gitignore, "*.txt" is listed, is this expected? Does not seem like its needed for this video.
Here is a list of everything at 0:56.
flask

gunicorn

Jinja2>=2.10.1

Werkzeug>=0.15

itsdangerous>=0.24

click>=5.1

setuptools>=3.0

MarkupSafe>=0.23

[ROHITKUMAR-wqdb]

Hello Sir i am using flask application and i want my server run on Gunicorn but when i doing all steps according to your video ..and run gunicorn it gives me error ModuleNotFoundError: No module named 'fcntl' and i am using window 10 os ..so i just wanted to know is gunicorn run on window os or not? second how i am run gunicorn in window os

[capeandcode]

Hi Andrew. Nice video. Can you tell me that if I want to develop a app that can handle like 20k users, will it be possible using Flask?