update

app.py

@@ -1,5 +1,5 @@
 from flask import Flask, render_template, request, jsonify
-from qna import question_answerer,context
+from qna import pipe
 from judge import classifier
 
 app = Flask(__name__)
@@ -20,8 +20,11 @@ def ask():
         a=classifier(sequence_to_classify, candidate_labels)
         a=a['labels'][0]
         if a=='question about mining':
-            result = question_answerer(question=question, context=context)
-            answer = result['answer']
+            output = pipe.run(
+                            query=question, params={"Retriever": {"top_k": 10}, "Reader": {"top_k": 5}}
+                            )
+            out=output["answers"][0].answer
+            answer = out
             chat_history.append(("Chatbot", answer))
             return jsonify({"answer": answer})
         else:

output.py

@@ -1,14 +1 @@
 from qna import pipe
-from haystack.utils import print_answers
-import io
-import sys
-
-output_buffer = io.StringIO()
-sys.stdout = output_buffer
-prediction = pipe.run(
-    query="what is mining?", params={"Retriever": {"top_k": 10}, "Reader": {"top_k": 5}}
-)
-print_answers(prediction, details="minimal")
-sys.stdout = sys.__stdout__
-a= output_buffer.getvalue()
-print(a)