mydb.py

import json

class database:
    
    def add_data(self,name,email,password):
        """Add data of user into json file if not exists else not."""
        
        with open('db.json','r') as rf:
            database = json.load(rf)
            
        if email in database:
            return 0
        else:
            database[email] = [name,password]
            with open('db.json','w') as wf:
                json.dump(database,wf)
            return 1
    
    
    def search(self,email,password):
        """Checks whether email and password given by the user is correct or not."""
        
        with open('db.json','r') as rf:
            database = json.load(rf)  
            
        if email in database:
            if database[email][1] == password:
                return 1
            else:
                return 0
        else:
            return 0