bot3.py

'''
bot.py template for PRAW3

This file will be imported by all bots, and provides a standard way to log in.

You should never place this file in a git repository or any place where it will
get shared.

The requirements for this file are:

1   A function `anonymous` with no arguments, which returns a `praw.Reddit`
    instance that has a Useragent but is otherwise anonymous / unauthenticated.
    This will be used in bots that need to make requests but don't need any
    permissions.

2   A function `login` with optional parameter `r`, which returns an
    authenticated Reddit instance.
    If `r` is provided, authenticate it.
    If not, create one using `anonymous` and authenticate that.
    Either way, return the instance when finished.

The exact workings of these functions, and the existence of any other variables
and functions are up to you.


I suggest placing this file in a private directory and adding that directory to
your `PYTHONPATH` environment variable. This makes it importable from anywhere.

However, you may place it in your default Python library. An easy way to find
this is by importing a standard library module and checking its location:
>>> import os
>>> os
<module 'os' from 'C:\\Python36\\lib\\os.py'>

But placing the file in the standard library means you will have to copy it over
when you upgrade Python.

If you need multiple separate bots, I would suggest creating copies of this file
with different names, and then using `import specialbot as bot` within the
application, so that the rest of the interface can stay the same.
'''

import praw

USERAGENT = 'xxx'
APP_ID = 'xxx'
APP_SECRET = 'xxx'
APP_URI = 'xxx'
APP_REFRESH = 'xxx'
# https://www.reddit.com/comments/3cm1p8/how_to_make_your_bot_use_oauth2/

def anonymous():
    r = praw.Reddit(USERAGENT)
    return r

def login(r=None):
    if r is None:
        r = anonymous()

    if r.access_token is not None:
        return r

    r.set_oauth_app_info(APP_ID, APP_SECRET, APP_URI)
    r.refresh_access_information(APP_REFRESH)
    r.config.api_request_delay = 1
    return r