add the retry function

django_code/stash_management/apps.py

@@ -116,10 +116,29 @@ def images_downloader(name,images_url_list,destination_named_folder):
         opener = urlrequest.build_opener(proxy)
         
         urlrequest.install_opener(opener)
-        urlrequest.urlretrieve(image_url, filename )
+        try:
+          urlrequest.urlretrieve(image_url, filename )
+        except:
+          print("Can't download "+filename+" -- "+image_url)
+          individual_image_downloader.delay(image_url=image_url, filename=filename)
         
     return 0
 
+@shared_task()
+def individual_image_downloader(image_url, filename ):
+        print("Downloading again: "+filename+" -- "+image_url)
+        
+        opener = urlrequest.build_opener(proxy)
+        
+        urlrequest.install_opener(opener)
+        try:
+          urlrequest.urlretrieve(image_url, filename )
+        except:
+          print("Still Can't download "+filename+" -- "+image_url+"  == Cancelling")  
+    return 0
+
+
+
 def incremental(request):
     return render(request, 'incremental_form.html',{})