./manage.py runserver on mac

I'm setting up a new dev environment for Django development on a mac as a new Python dev but I'm receiving an error running a basic django app so I think my python setup is incorrect

I have python3 installed so to make it easy to access, in my .zshrc I have added the line

alias python='python3'

I have used homebrew to install python, django-admin, pipx as well as python-language-server and ruff-lsp and installed jedi-language-server via pipx as a basic setup for helix

I have used the dango ninja tutorial to get a project started

django-admin startproject ninjaapidemo
cd ninjaapidemo

which gives me a project structure

# ~/dev/ninjaapidemo

.
├── manage.py
└── ninjaapidemo
    ├── __init__.py
    ├── asgi.py
    ├── settings.py
    ├── urls.py
    └── wsgi.py

I have updated urls.py to the following (as per the django ninja tutorial)

from django.contrib import admin
from django.urls import path
from ninja import NinjaAPI

api = NinjaAPI()

@api.get("/add")
def add(request, a: int, b: int):
    return {"result": a + b}


urlpatterns = [path("admin/", admin.site.urls), path("api/", api.urls)]

and attempted to run the project from ~/dev/ninjaapidemo

./manage.py runserver

but I get the following error

env: python: No such file or directory

Can anyone make a recommendation for what I'm doing wrong please? Thanks

Okay - i found a fix but it would be great to get this validated by someone

I removed the python -> python3 alias from zsh to avoid namespace clashes

I created a virtual env called venv with the following

python3 -m venv venv

which created a venv folder in the root of my project.

I activated this with

. venv/bin/activate

and then had to reinstall django and django ninja

pip install django django-ninja

I was then able to run the runserver command

./manage.py runserver

This all seems fine to me (although it does mean that I have a virtual environment folder in my project which seems like I should add this to the .gitignore file) - does anyone have any thoughts please?

Thanks

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