Python YouTube API Tutorial

Python/YouTube-API/02-Playlist-Duration/playlist.py

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+import os
+import re
+from datetime import timedelta
+from googleapiclient.discovery import build
+
+api_key = os.environ.get('YT_API_KEY')
+
+youtube = build('youtube', 'v3', developerKey=api_key)
+
+hours_pattern = re.compile(r'(\d+)H')
+minutes_pattern = re.compile(r'(\d+)M')
+seconds_pattern = re.compile(r'(\d+)S')
+
+total_seconds = 0
+
+
+nextPageToken = None
+while True:
+    pl_request = youtube.playlistItems().list(
+        part='contentDetails',
+        playlistId="PL-osiE80TeTt2d9bfVyTiXJA-UTHn6WwU",
+        maxResults=50,
+        pageToken=nextPageToken
+    )
+
+    pl_response = pl_request.execute()
+
+    vid_ids = []
+    for item in pl_response['items']:
+        vid_ids.append(item['contentDetails']['videoId'])
+
+    vid_request = youtube.videos().list(
+        part="contentDetails",
+        id=','.join(vid_ids)
+    )
+
+    vid_response = vid_request.execute()
+
+    for item in vid_response['items']:
+        duration = item['contentDetails']['duration']
+
+        hours = hours_pattern.search(duration)
+        minutes = minutes_pattern.search(duration)
+        seconds = seconds_pattern.search(duration)
+
+        hours = int(hours.group(1)) if hours else 0
+        minutes = int(minutes.group(1)) if minutes else 0
+        seconds = int(seconds.group(1)) if seconds else 0
+
+        video_seconds = timedelta(
+            hours=hours,
+            minutes=minutes,
+            seconds=seconds
+        ).total_seconds()
+
+        total_seconds += video_seconds
+
+    nextPageToken = pl_response.get('nextPageToken')
+
+    if not nextPageToken:
+        break
+
+total_seconds = int(total_seconds)
+
+minutes, seconds = divmod(total_seconds, 60)
+hours, minutes = divmod(minutes, 60)
+
+print(f'{hours}:{minutes}:{seconds}')