Python-Programming-Society File Download Bot

PPS-FilesBot.py

"""
Python Programming Society Files Downloader
===========================================

Python Programmers Society is a Facebook group which connects people who love 
to program in Python and want to spread the word about the fastest growing 
programming language in the world.

Total Members :- 36,600+ and Counting.

Author: Psycho_Coder <Animesh Shaw>
Date: 29th June, 2015.
"""

import csv
from urllib import unquote

import facepy
import requests

access_token = "Your Token"

try:
    graph = facepy.GraphAPI(access_token, verify_ssl_certificate=True, timeout=3000, version='2.3')
except facepy.OAuthError as e:
    print(e.message)

print("Connection Established")

grp_id = "714685238558448"
lim = 500

files_dict = graph.get(grp_id + "/files", retry=5, limit=lim, fields='download_link,id,updated_time')

print("Records have been fetched from the Group.")

files_count = len(files_dict['data'])

print("Number of Files present in the Group :- " + str(files_count))

download_links = {}
csv_db_fieldnames = ['id', 'filename', 'download_link', 'updated_time']

#Save all the File names with other metadata as CSV file for records
with open('PPS-Fileddb.csv', 'wb') as csvfile:
    writer = csv.DictWriter(csvfile, fieldnames=csv_db_fieldnames)
    writer.writeheader()
    
    for i in range(files_count):
        
        link = files_dict['data'][i]['download_link']
        file_name = link[link.rfind('/') + 1:]    

        #Save the link in a new dictionary which we refer to download the files using requests
        download_links[file_name] = link        
    
        files_dict['data'][i]['filename'] = file_name
        
        writer.writerow(files_dict['data'][i])

print("All the records have been written to CSV file and saved in the current directory.")

#Location to Save the files        
save_dir = "/home/psychocoder/Documents/PPS/"

#Download the files using Python requests library.
for filename in download_links.iterkeys():
    req = requests.get(download_links.get(filename), stream=True)
    
    filename = unquote(filename)

    with open(save_dir + filename, 'wb') as f:
        print("Downloading File :- " + filename)
        for chunk in req.iter_content(chunk_size=1024): 
            if chunk:
                f.write(chunk)
                f.flush()

print("\nAll Files have been downloaded. Keep Learning and Love Anime Boobies :D")