Update app.py

app.py

@@ -1,7 +1,7 @@
 # app.py
 import gradio as gr
 from tool2 import *  # Ensure you are using the updated tool2.py
-from backend1 import *
+# from backend1 import *  # Not needed, all functionality now in tool2.py
 
 # Global variable to store the currently selected set of exam questions
 selected_questions = []
@@ -44,14 +44,10 @@ def start_exam(exam_choice, start_question, audio_enabled):
 
     if start_question >= len(selected_questions):
         start_question = 0  # Default to the first question if the input exceeds available questions
+    elif start_question < 0:  # prevent negative start question values
+        start_question = 0
 
-    #  The error occurred here. The `start_exam` function called `display_question` with three arguments:
-    # `start_question - 1 if start_question > 0 else 0`, `audio_enabled`, and `selected_questions`.
-    # However, the `display_question` function (presumably defined in tool2.py, though not shown) was
-    # defined to accept only two arguments.
-    # The traceback clearly states: `TypeError: display_question() takes 2 positional arguments but 3 were given`.
-    # I fixed this by modifying tool2.py to include selected_question as a parameter
-    question, options, audio_path = display_question(start_question - 1 if start_question > 0 else 0, audio_enabled, selected_questions)  # Corrected index here to be 0-based
+    question, options, audio_path = display_question(start_question, audio_enabled, selected_questions)  # Corrected index here to be 0-based
 
     return (
         # Hide start screen elements
@@ -116,10 +112,10 @@ def handle_answer(index, answer, audio_enabled, current_audio):
     if answer is None:
         return "Please select an option before submitting.", None, None
     # Stop the current question audio before playing the answer audio
-    stop_audio = True if current_audio else False
+    stop_audio = True if current_audio else False  # This line isn't actually used. It's better to handle the audio stopping directly in the UI.
     result = check_answer(index, answer)
     answer_audio_path = text_to_speech(result) if audio_enabled else None
-    return result, answer_audio_path, stop_audio
+    return result, answer_audio_path, None # Return None for stop_audio as Gradio doesn't easily support two audios playing at once and stopping.
 
 
 def handle_next(index, audio_enabled):
@@ -156,12 +152,12 @@ with gr.Blocks() as demo:
     description = gr.Markdown(value=description_str)
     exam_selector = gr.Dropdown(label="Select an exam", choices=exams, value=None)
     audio_checkbox = gr.Checkbox(label="Enable Audio", value=True, visible=False)
-    start_question_slider = gr.Slider(minimum=1, maximum=50, step=1, label="Select starting question", visible=False)  # Slider for selecting the starting question, minimum is now 1
+    start_question_slider = gr.Slider(minimum=1, maximum=50, step=1, label="Select starting question", value = 1, visible=False)  # Slider for selecting the starting question, minimum is now 1, default value = 1
     start_button = gr.Button("Start Exam", visible=False)
 
     # Quiz elements (initially hidden)
     question_state = gr.State(0)
-    current_audio_state = gr.State(None)  # State to track the current audio playing
+    current_audio_state = gr.State(None)  # State to track the current audio playing.  This isn't strictly needed if we don't try to stop the audio.
     question_text = gr.Markdown(visible=False, elem_id="question-text")
     choices = gr.Radio(visible=False, label="Options")
     result_text = gr.Markdown(visible=False)  # Initially hidden, shown when answer is submitted or explanation is shown
@@ -219,21 +215,21 @@ with gr.Blocks() as demo:
             start_question_slider,  # Ensure the slider is hidden
             question_text, question_text, choices, answer_button,
             next_button, prev_button, home_button, question_state, result_text, question_audio,
-            explain_button, explanation_text, current_audio_state  # Add explanation_text to outputs, corrected from result_text, and use explanation_text for explanation
+            explain_button, explanation_text, current_audio_state  # Add explanation_text to outputs
         ]
     )
 
     # Connect the quiz buttons to their functions
     answer_button.click(fn=handle_answer, inputs=[question_state, choices, audio_checkbox, current_audio_state], outputs=[result_text, answer_audio, current_audio_state])
-    next_button.click(fn=handle_next, inputs=[question_state, audio_checkbox], outputs=[question_text, choices, question_state, result_text, question_audio, explanation_text, result_text])  # Corrected input to audio_checkbox
-    prev_button.click(fn=handle_previous, inputs=[question_state, audio_checkbox], outputs=[question_text, choices, question_state, result_text, question_audio, explanation_text, result_text])  # Corrected input to audio_checkbox
-    explain_button.click(fn=show_explanation, inputs=[question_state], outputs=[explanation_text, result_text, explanation_text])  # Corrected output to explanation_text for the last element which was incorrectly result_text
+    next_button.click(fn=handle_next, inputs=[question_state, audio_checkbox], outputs=[question_text, choices, question_state, result_text, question_audio, explanation_text, result_text])
+    prev_button.click(fn=handle_previous, inputs=[question_state, audio_checkbox], outputs=[question_text, choices, question_state, result_text, question_audio, explanation_text, result_text])
+    explain_button.click(fn=show_explanation, inputs=[question_state], outputs=[explanation_text, result_text, explanation_text])
     home_button.click(fn=return_home, inputs=None, outputs=[
         title, description, exam_selector, start_button,
         audio_checkbox,  # Ensure the checkbox visibility is updated
         start_question_slider,  # Ensure the slider is shown
         question_text, question_text, choices, answer_button,
-        next_button, prev_button, home_button, question_state, result_text, explanation_text, explain_button, result_text  # Added result_text to clear on home, and corrected outputs to include explanation_text
+        next_button, prev_button, home_button, question_state, result_text, explanation_text, explain_button, result_text
     ])
 
 demo.launch()