Create app.py

app.py

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+import streamlit as st
+
+# Title of the app
+st.title("Simple Calculator")
+
+# Input fields
+num1 = st.number_input("Enter first number", value=0.0)
+num2 = st.number_input("Enter second number", value=0.0)
+
+# Operator selection
+operation = st.selectbox("Select operation", ["Addition (+)", "Subtraction (-)", "Multiplication (*)", "Division (/)"])
+
+# Perform calculation
+result = None
+if st.button("Calculate"):
+    if operation == "Addition (+)":
+        result = num1 + num2
+    elif operation == "Subtraction (-)":
+        result = num1 - num2
+    elif operation == "Multiplication (*)":
+        result = num1 * num2
+    elif operation == "Division (/)":
+        if num2 != 0:
+            result = num1 / num2
+        else:
+            st.error("Division by zero is not allowed.")
+
+    if result is not None:
+        st.success(f"Result: {result}")