hypercorn command not found

Introduction

When you run more command in linux terminal / console, you get the following error message

hypercorn: command not found

or when using sudo you get the following error message

sudo: hypercorn: command not found

Solutions to hypercorn: command not found

How To Fix hypercorn: command not found in Ubuntu / Debian / Kali Linux / Raspbian

In Ubuntu hypercorn is provided by python3-hypercorn package.

python3-hypercorn is:

Hypercorn is an ASGI web server based on the sans-io hyper, h11, h2, and wsproto libraries and inspired by Gunicorn. Hypercorn supports HTTP/1, HTTP/2, WebSockets (over HTTP/1 and HTTP/2), ASGI/2, and ASGI/3 specifications. Hypercorn can utilise asyncio, uvloop, or trio worker types.

Hypercorn can optionally serve the current draft of the HTTP/3 specification using the aioquic library.

Hypercorn was initially part of Quart before being separated out into a standalone ASGI server. Hypercorn forked from version 0.5.0 of Quart.

To fix this problem, we can install more using the command below.

sudo apt-get -y install python3-hypercorn

This command might take some time to finish depending on your machine internet connection.

You can also use apt command to install python3-hypercorn.

sudo apt -y install python3-hypercorn

Or if you have aptitude installed you can use the following command.

sudo aptitude install python3-hypercorn

Summary

In this tutorial we learn how to fix hypercorn command not found error in Ubuntu / Debian / Kali Linux or Raspbian distribution.