Bronze [Script] Stripe Invoicing Script

Code:
import time
import datetime as DT

import json

import stripe
import csv

#SECRET_KEY ="SK_Live_#####################"

#SECRET_KEY ="SK_Live_#####################"

AMOUNT = 22999

CSV_FILE = "cust.csv"

#stripe.api_key = SECRET_KEY

settings = {}

def create_invoice(customer):
    
    desc = "Dear " + customer["name"] + """
[font=Courier New]#########YOUR MESSAGE################[/font]
    """

    try:
        invoice = stripe.Invoice.create(
            customer = customer["id"],
            collection_method = "send_invoice",
            days_until_due = 7,
            description = desc
        )
        
        #print(invoice)
        
        item = stripe.InvoiceItem.create(
            customer = customer["id"],
            invoice = invoice["id"],
            amount = AMOUNT,
            currency = "USD",
            description = "Geek Squad Advanced Protection (12 Months Subscription)"
        )
        
        return invoice

    except Exception as e:
        print(e)
    
    return None

def send_invoice(invoice):
    
    try:
        sent = stripe.Invoice.send_invoice(
            invoice["id"]
        )
        
        return sent
    
    except stripe.error.RateLimitError as rE:
        time.sleep(1)
        return send_invoice(invoice)
    except Exception as e:
        print(e)
    
    return None

def read_customers():
    custs = []
    with open (CSV_FILE) as file:
          reader = csv.DictReader(file)
          for row in reader:
              cust = {
                  "name": row["Fullname"],
                  "email": row["Email"]
              }
              custs.append(cust)
    
    return custs

def load_settings():
    global settings
    
    print("Loading settings...")
    with open('settings.json', 'r') as file:
        obj = json.load(file)
        
        try:
            print("Amount: " + str(obj["amount"]))
            print("Number Of Mails Per Account: " + str(obj["number_of_mails_per_account"]))
            print("Delay Between Account Switch: " + str(obj["delay_between_account_switch"]))
            print("Delay Between Each Invoice: " + str(obj["delay_between_each_invoice"]))
            
            accounts = obj["accounts"]
            
            if(len(accounts) == 0):
                print("No accounts found...")
                return False
            else:
                print("Accounts found: " + str(len(accounts)))
            
            for account in accounts:
                print("Account Name: " + str(account["name"]) + ", SKey: " + str(account["skey"]))
            
            settings = obj
            return True
        except:
            #print("Unable to read settings file. Make sure it's correct and complete")
            return False

def start_process():
    global AMOUNT
    
    if load_settings():
        print("Settings loaded...")
    else:
        print("Error reading settings file. Exiting...")
        return
    
    print("")
    
    AMOUNT = settings["amount"]
    
    accounts = settings["accounts"]
    
    print("Reading Customers...")
    
    customers = read_customers()
    
    if len(customers) == 0:
        print("Unable to fetch customers")
        return
    
    print("Total Customers: " + str(len(customers)))
    print("")
    
    print("Sending invoices...")
    
    account = 0
    countAccount = 0
    use_account(accounts[account])
    
    count = 0
    for customer in customers:
        count = count + 1
        print("")
        print("Customer " + str(count) + ": " + customer["name"] + " - Starting...")
        
        customer = stripe.Customer.create(
            name = customer["name"],
            email = customer["email"]
        )
        
        print("Customer registered...")
        
        invoice = create_invoice(customer)
        
        if invoice != None:
            print("Invoice created. Sending...")
            invoiceSent = send_invoice(invoice)
            
            if invoiceSent != None:
                print("Customer " + str(count) + ": " + customer["name"] + " - Invoice sent...")
        
        if settings["delay_between_each_invoice"] > 0:
            time.sleep(settings["delay_between_each_invoice"])
        
        countAccount = countAccount + 1
        if countAccount >= settings["number_of_mails_per_account"]:
            if settings["delay_between_account_switch"] > 0:
                print("\nWaiting between account change...")
                time.sleep(settings["delay_between_account_switch"])

            account = account + 1
            if account >= len(accounts):
                account = 0
            
            use_account(accounts[account])
            countAccount = 0
    
    print("All invoices sent. Task completed.")

def use_account(account):
    print("")
    print("Using account: " + account["name"])
    stripe.api_key = account["skey"]

start_process()