Agfdhyk

This is my flask code for pagination and when i posted the url there
was error messages showing like

start_copy = max(1, start - limit)
TypeError: unsupported operand type(s) for -: 'pagination' and 'str'
help me to solve this error!!

from flask import Flask, abort, request, jsonify





from models import Categories



from flask_restful import Resource



app = Flask(__name__)



class pagination(Resource):



    url= '/getbypages'

    start=1

    limit=20

    def get(start,limit):

        results = [1,2,3,4,5,6,7,8,9,10]

        print("resultsllllllllllll",results)

        count = len(results)

        obj = {}

        if count < 1:

            print("404")

        else:

            #count = limit-start

            #print(count)

            obj['start'] = start

            obj['limit'] = limit

            obj['count'] = count

            print(obj)

            if start == 1:

                obj['previous'] = ''

            else:

                start_copy = max(1, start - limit)

                print(start_copy)

                limit_copy = start - 1

                obj['previous'] = url + '?start=%d&limit=%d' % (start_copy, limit_copy)

                if start + limit > count:

                    obj['next'] = ''

                else:

                    start_copy = start + limit

                    obj['results'] = results[(start - 1):(start - 1 + limit)]

        return obj

    print(get(start, limit))