how to create manage.py in django code example

Example 1: django runserver

python manage.py runserver

Example 2: run django server

python3 manage.py runserver
or
python manage.py runserver

Example 3: what is manage.py

It is your tool for executing many Django-specific tasks such as
 starting a new app within a project, running the development server, 
 running your tests etc.

Example 4: create new django project

django-admin startproject project_name

Example 5: django run manage.py from python

from django.core import management
management.call_command('loaddata', 'test_data', verbosity=0)