Create app.py

app.py

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+import streamlit as st
+
+# Streamlit app title
+st.title("Marks and Grade Calculator")
+
+# Input fields for total marks and obtained marks
+a = st.number_input("Enter your Total marks:", min_value=0)
+b = st.number_input("Enter your Obtained marks:", min_value=0)
+
+# Ensure obtained marks are not greater than total marks
+if b > a:
+    st.error("Obtained marks cannot be greater than total marks!")
+else:
+    if a > 0:  # To avoid division by zero
+        # Calculate percentage
+        c = (b / a) * 100
+        st.write(f"Your percentage is: {c:.2f}%")
+
+        # Grade determination
+        if c >= 80:
+            st.write("Your Grade is: A1")
+        elif c >= 70:
+            st.write("Your Grade is: A")
+        elif c >= 60:
+            st.write("Your Grade is: B")
+        elif c >= 50:
+            st.write("Your Grade is: C")
+        else:
+            st.write("Your Grade is: Fail")
+    else:
+        st.warning("Total marks should be greater than 0.")