show some ways to insert data to sqlite in django?

I don’t know yours models… let’s asume:

models.py

from django.db import models


class Uuser(models.Model):
    name = models.CharField(max_length=45,)
    public_repos = models.CharField(max_length=45,)

then in your view.py

from django.shortcuts import render
import requests
from models import Uuser

def github(request):
    user = {}
    if 'username' in request.GET:
        username = request.GET['username']
        url = 'https://api.github.com/users/%s' % username
        response = requests.get(url)
        user = response.json()
        usr = Uuser(name=user['name'], public_repos=user['public_repos']) # create new model instance
        usr.save() #seve to db
    return render(request, 'core/github.html', {'user': user})

I’m not checking if that exact name exist in db so there will be new record on the same name each time you post it to view.