I have one class, which is reading data from a JSON file:
import os
import json
from db_connection import DB_Connection
class RA_Admin:
def __init__(self):
data = None
self.load_access_data()
def load_access_data(self):
with open('../docs/db_data.json') as data_file:
self.data = json.load(data_file)
a = RA_Admin()
db_con = DB_Connection(a.data)
db_con.read_data()
I wrote a second class to connect to a database:
import mysql.connector
class DB_Connection:
def __init__(self, data):
database_connection = None
cursor = None
user = data["database"]["user"]
paw = data["database"]["paw"]
ip_address = data["database"]["ip_adress"]
db_name = data["database"]["database_name"]
port = data["database"]["port"]
def read_data(self):
database_connection = mysql.connector.connect(user = self.user, password = self.paw, host=self.ip_address, port=self.port, database=self.db_name)
self.cursor = database_connection.cursor(dictionary=True)
I get the following error:
database_connection = mysql.connector.connect(user = self.user, password = self.paw, host=self.ip_address, port=self.port, database=self.db_name)
AttributeError: DB_Connection instance has no attribute 'user'
I can print the user in the __init__ method and the other attributes, but why are they not used in read_data?
