Update app.py

app.py

@@ -9,11 +9,24 @@ import requests
 import json
 
 if(EXTRACTOR_NET == 'extractnet'):
-  from extractnet import Extractor
+    try:
+        from extractnet import Extractor
+    except ImportError:
+        pass
 elif(EXTRACTOR_NET == 'dragnet'):
-  from dragnet import extract_content
+    try:
+        from dragnet import extract_content
+    except ImportError:
+        pass
 elif(EXTRACTOR_NET == 'trafilatura'):
-  import trafilatura
+    try:
+        import trafilatura
+    except ImportError:
+        pass
+else:
+    raise ImportError
+
+print('[i] Using',EXTRACTOR_NET)
 
 from extractnet import Extractor
 import math