A crawler for crawling user profiles, followings and followers on Twitter.

1. Tweepy
2. Pymongo
3. MongoDB

To initial the crawling task, execute:

python main.py user_list

where user_list is the file name of a text file that contains user ids. One user id per line.

To continue the task after program crash, execute:

python main_load.py

0. Complete the commond-line arguments processing function
1. Meet PEP8 Standard
2. Rewrite three thread classes; Consider a solution using thread pool
3. Logging function
4. Combine main.py and main_load.py