def roundto5(x, base=5):
    return int(base * round(float(x)/base))

import praw

reddit=praw.Reddit(client_id='[insert client_id here]',
                   client_secret='[insert secret key here]',
                   username='[insert username here]',
                   password='[insert password here]',
                   user_agent='circleoftrustbot')

subreddit=reddit.subreddit("circleoftrust")

rising=subreddit.rising(limit=100)
contacted=[]
for submission in rising:
    flair_text=submission.author_flair_text
    number=flair_text.split(",")[1][1:-1]
    if number.isnumeric()==True:
        number=int(number)
        print(number)
        if number>5:
            advertisment=roundto5(number)
            subject='High volume circle trading'
            message="Hey! I see you like collecting circles and have a good rep - so do I. I currently am in 40 circles and I'm looking to grow. Want to trade "+str(advertisment)+" circle keys? I can go first if you like. If you have any questions feel free to PM me, I've done this kind of thing before."
            user=submission.author
            if user not in contacted:
                user.message(subject,message)
                contacted.append(user)
        else:
            subject='Key for key?'
            message="Hey! I'm in 40 circles and looking to expand. Want to trade keys? I'll give you one and you can give me yours. You can check how trustworthy I am by looking at my comment history and checking out my flair, the 40 next to my name means I'm in 40 circles"
            user=submission.author
            if user not in contacted:
                user.message(subject,message)
                contacted.append(user)