Create scraper.py

youtube_comment_scraper/scraper.py

@@ -0,0 +1,82 @@
+import requests
+from itertools import islice
+from itertools import combinations
+from collections import defaultdict
+from youtube_comment_downloader import YoutubeCommentDownloader
+
+
+class YouTubeCommentScraper:
+    def __init__(self):
+        self.program_version_number = '2022.1.0.0'
+        self.update_check_endpoint = "https://api.github.com/repos/rly0nheart/youtube-comment-scraper/releases/latest"
+        
+        
+    def notice(self):
+        notice_msg = f"""
+        YouTube-Comment-Scraper {self.program_version_number} Copyright (C) 2022  Richard Mwewa
+        
+        This program is free software: you can redistribute it and/or modify
+        it under the terms of the GNU General Public License as published by
+        the Free Software Foundation, either version 3 of the License, or
+        (at your option) any later version.
+        """
+        print(notice_msg)
+
+        
+    def check_and_get_updates(self):
+        self.notice()
+        """
+        Checks if the release tag matches the current tag in the program
+        If there's a match, ignore
+        """
+        response = requests.get(self.update_check_endpoint).json()
+        if response['tag_name'] == self.program_version_number:
+            pass
+        else:
+            print(f"[!] A new release is available ({response['tag_name']}). Run 'pip install --upgrade youtube-comment-scraper' to get the updates.\n")
+
+            
+    def get_comment_dictionary(self, video_url, max_comments=100):
+        """
+        Creates a dictionary mapping comment-authors
+        to a list of their comments
+        """
+        downloader = YoutubeCommentDownloader()
+        comment_dictionary = defaultdict(list)
+        comments = downloader.get_comments_from_url(video_url)
+        for comment in islice(comments, max_comments):
+            comment_dictionary[comment['author']].append(comment)
+        
+        return comment_dictionary
+
+        
+    def find_multiple_users(self, video_urls):
+        self.check_and_get_updates()
+        # video_dictionary maps the video url id to the 
+        # comment dict for that video
+        video_dictionary = {}
+        for url in video_urls:
+            video_uid = url.split('=')[1].split('&')[0]
+            print('[*] Getting comments for video: ', video_uid)
+            video_dictionary[video_uid] = self.get_comment_dictionary(url)
+            
+        # Iterate over the possible combinations of videos
+        for item_1, item_2 in combinations(video_dictionary.items(), r=2):
+            # Unpack from tuple
+            video_id_1, dictionary_1 = item_1
+            video_id_2, dictionary_2 = item_2
+            # Use set intersection to find common authors
+            common_authors = dictionary_1.keys() & dictionary_2.keys()
+            print(f'Videos: {video_id_1} & {video_id_2} have {len(common_authors)}')
+            print(common_authors)
+            for author in common_authors:
+                print(f'[+] Author: {author}')
+                print(f'[+] Video {video_id_1} comments: ')
+                # Iterate over each comment author left on video1
+                # and print first 100 chars
+                for count, comment in enumerate(dictionary_1[author], start=1):
+                    print(count, comment['text'][:100])
+                print(f'[+] Video {video_id_2} comments: ')
+                for count, comment in enumerate(dictionary_2[author], start=1):
+                    print(count, comment['text'][:100])
+                print()