Merge pull request geekcomputers#339 from akshaykumar123/patch-1

Create pythonVideoDownloader.py

Author: geekcomputers

pythonVideoDownloader.py

@@ -0,0 +1,66 @@
+import requests
+from bs4 import BeautifulSoup
+ 
+'''
+URL of the archive web-page which provides link to
+all video lectures. It would have been tiring to
+download each video manually.
+In this example, we first crawl the webpage to extract
+all the links and then download videos.
+'''
+ 
+# specify the URL of the archive here
+archive_url = "http://www-personal.umich.edu/~csev/books/py4inf/media/"
+ 
+def get_video_links():
+     
+    # create response object
+    r = requests.get(archive_url)
+     
+    # create beautiful-soup object
+    soup = BeautifulSoup(r.content,'html5lib')
+     
+    # find all links on web-page
+    links = soup.findAll('a')
+ 
+    # filter the link sending with .mp4
+    video_links = [archive_url + link['href'] for link in links if link['href'].endswith('mp4')]
+ 
+    return video_links
+ 
+ 
+def download_video_series(video_links):
+ 
+    for link in video_links:
+ 
+        '''iterate through all links in video_links
+        and download them one by one'''
+         
+        # obtain filename by splitting url and getting 
+        # last string
+        file_name = link.split('/')[-1]   
+ 
+        print "Downloading the file:%s"%file_name
+         
+        # create response object
+        r = requests.get(link, stream = True)
+         
+        # download started
+        with open(file_name, 'wb') as f:
+            for chunk in r.iter_content(chunk_size = 1024*1024):
+                if chunk:
+                    f.write(chunk)
+         
+        print "%s downloaded!\n"%file_name
+ 
+    print "All videos are downloaded!"
+    return
+ 
+ 
+if __name__ == "__main__":
+ 
+    # getting all video links
+    video_links = get_video_links()
+ 
+    # download all videos
+    download_video_series(video_links)