Error when send notification

[SaidtheBoss]

Issue I am facing

When there are small amount of users i have no problem but when the amount gets larger like 50+ then i cant send notification

Traceback to the issue

my code takes the user id and puts it on a set
put it here

def start(update, context,d = True):
    user_id = update.message.from_user.id
    print(user_id)
    global id_number
    id_number.add(str(user_id))

and when i send command /Notif

def notifsender(update,context):
    print("notification")
    global datanotif
    datanotif = pd.read_csv("notif.csv")
    global id_number
    Link = datanotif['pic'].values
    Link = str(Link[0])
    text = datanotif['text'].values
    text = str(text[0])
    for i in list(id_number):
        bot.send_photo(chat_id=i, photo=Link)
        context.bot.send_message(chat_id=i, text=text)

(my code takes notification and pic from file)
When there are like 10 users i can send notification to all the users but when i have 25 users its not sending notifications even to me

[Bibo-Joshi]

Well, without actual error traceback, I can only guess, but the guess would be that you're hidding flood limits. We have a wiki page for that.

Also, you may want to use bot_data (here) instead of global variables.

[SaidtheBoss]

Well, without actual error traceback, I can only guess, but the guess would be that you're hidding flood limits. We have a wiki page for that.

Also, you may want to use bot_data (here) instead of global variables.

so is there a proper way i can send notifications to all my users?

[SaidtheBoss]

And is there away i can delay messages?

[SaidtheBoss]

def notifsender(update,context):
    print("notification")
    global datanotif
    datanotif = pd.read_csv("notif.csv")
    global id_number
    Link = datanotif['pic'].values
    Link = str(Link[0])
    text = datanotif['text'].values
    text = str(text[0])
    for i in list(id_number):
        bot.send_photo(chat_id=i, photo=Link)
        context.bot.send_message(chat_id=i, text=text)

how can i edit this code so it would avoid Floodgate limit?

[SaidtheBoss]

thanks in advance :)

[Bibo-Joshi]

As for flood limits: See my previous comment.
Sending to all users: See #1836. As this is in fact pretty much a duplicate of that, I'll be closing this one.

Also, please don't comment like you're on an instant messenger. It clutters the thread and there are people, who receive an E-Mail every time you comment.