Update app.py

app.py

@@ -15,13 +15,12 @@ def get_random_questions():
 questions = get_random_questions()
 
 # Function to evaluate answers
-def evaluate_test(student_name, father_name, roll_no, answers):
-    attempted = sum([1 for a in answers if a is not None and a != ""])
-    correct = 0
-    for q, ans in zip(questions, answers):
-        if ans == q["answer"]:
-            correct += 1
-    percentage = (correct / len(questions)) * 100
+def evaluate_test(student_name, father_name, roll_no, *answers):
+    answers = list(answers)
+
+    attempted = sum([1 for a in answers if a])
+    correct = sum([1 for q, ans in zip(questions, answers) if ans == q["answer"]])
+    percentage = (correct / len(questions)) * 100 if len(questions) > 0 else 0
 
     # Generate PDF report
     pdf = FPDF()
@@ -29,30 +28,34 @@ def evaluate_test(student_name, father_name, roll_no, answers):
     pdf.set_font("Arial", size=12)
     pdf.cell(200, 10, txt="Test Report - Class 6 General Knowledge", ln=True, align="C")
     pdf.ln(10)
-    pdf.cell(200, 10, txt=f"Student Name: {student_name}", ln=True)
-    pdf.cell(200, 10, txt=f"Father's Name: {father_name}", ln=True)
-    pdf.cell(200, 10, txt=f"Roll No: {roll_no}", ln=True)
+
+    # Safe encoding for special characters
+    pdf.cell(200, 10, txt=f"Student Name: {student_name}".encode("latin-1", "replace").decode("latin-1"), ln=True)
+    pdf.cell(200, 10, txt=f"Father's Name: {father_name}".encode("latin-1", "replace").decode("latin-1"), ln=True)
+    pdf.cell(200, 10, txt=f"Roll No: {roll_no}".encode("latin-1", "replace").decode("latin-1"), ln=True)
     pdf.ln(10)
+
     pdf.cell(200, 10, txt=f"Total Questions: {len(questions)}", ln=True)
     pdf.cell(200, 10, txt=f"Attempted: {attempted}", ln=True)
     pdf.cell(200, 10, txt=f"Correct: {correct}", ln=True)
     pdf.cell(200, 10, txt=f"Percentage: {percentage:.2f}%", ln=True)
 
     file_name = f"{roll_no}_result.pdf"
-    pdf.output(file_name)
+    pdf.output(file_name, "F")
 
     result_summary = f"""
-    Student: {student_name}  
-    Father's Name: {father_name}  
-    Roll No: {roll_no}  
-    
-    Attempted: {attempted}  
-    Correct: {correct}  
+    Student: {student_name}
+    Father's Name: {father_name}
+    Roll No: {roll_no}
+
+    Attempted: {attempted}
+    Correct: {correct}
     Percentage: {percentage:.2f}%
     """
 
     return result_summary, file_name
 
+
 # Build Gradio interface dynamically
 def build_interface():
     global questions
@@ -67,7 +70,7 @@ def build_interface():
     answer_inputs = []
     for i, q in enumerate(questions):
         answer_inputs.append(
-            gr.Radio(choices=q["options"], label=f"Q{i+1}: {q['question']}", value=None)
+            gr.Radio(choices=q["options"], label=f"Q{i+1}: {q['question']}")
         )
 
     output_text = gr.Textbox(label="Result Summary")
@@ -82,6 +85,7 @@ def build_interface():
     )
     return demo
 
+
 demo = build_interface()
 
 if __name__ == "__main__":