a youtube downloader for multiple urls at once.

Author: prakharchoudhary

automation/yt_downloader.py

@@ -0,0 +1,60 @@
+#!/usr/bin/env python3
+
+
+"""
+A script to download multiple videos from youtube.
+"""
+
+import sys
+import urllib.request
+from urllib.request import urlopen, FancyURLopener
+from urllib.parse import urlparse, parse_qs, unquote
+
+class UndercoverURLopener(FancyURLopener):
+    version = "Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10_5_8; en-US) AppleWebKit/533.2 (KHTML, like Gecko) Chrome/5.0.342.9 Safari/533.2"
+    
+urllib.request._urlopener = UndercoverURLopener()
+
+def youtube_download(video_url):
+    video_id = parse_qs(urlparse(video_url).query)['v'][0]
+
+    url_data = urlopen('http://www.youtube.com/get_video_info?&video_id=' + video_id).read()
+    url_info = parse_qs(unquote(url_data.decode('utf-8')))
+    token_value = url_info['token'][0]
+
+    download_url = "http://www.youtube.com/get_video?video_id={0}&t={1}&fmt=18".format(
+        video_id, token_value)
+
+    video_title = url_info['title'][0] if 'title' in url_info else ''
+    # Unicode filenames are more trouble than they're worth
+    filename = video_title.encode('ascii', 'ignore').decode('ascii').replace("/", "-") + '.mp4'
+
+    print("\t Downloading '{}' to '{}'...".format(video_title, filename))
+
+    try:
+        download = urlopen(download_url).read()
+        f = open(filename, 'wb')
+        f.write(download)
+        f.close()
+    except Exception as e:
+        print("\t Downlad failed! {}".format(str(e)))
+        print("\t Skipping...")
+    else:
+        print("\t Done.")
+
+def main():
+    print("\n--------------------------")
+    print (" Youtube Video Downloader")
+    print ("--------------------------\n")
+
+    try:
+        video_urls = sys.argv[1:]
+    except:
+        video_urls = input('Enter (space-separated) video URLs: ')
+
+    for u in video_urls:
+        youtube_download(u)
+    print("\n Done.")
+
+if __name__ == '__main__':
+    main()