Update app.py

app.py

@@ -20,9 +20,11 @@ async def scrape_wikipedia(url):
 
 async def scrape_urls(urls):
     tasks = []
+    loop = asyncio.new_event_loop()
+    asyncio.set_event_loop(loop)
     async with concurrent.futures.ThreadPoolExecutor(max_workers=len(urls)) as executor:
         for url in urls:
-            tasks.append(asyncio.ensure_future(scrape_wikipedia(url)))
+            tasks.append(loop.run_in_executor(executor, scrape_wikipedia, url))
         await asyncio.gather(*tasks)
         return tasks