Create app.py

app.py

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+import streamlit as st
+
+def main():
+    st.set_page_config(page_title="Simple Calculator", page_icon="🧮")
+    
+    st.title("✨ Simple Arithmetic Calculator")
+    st.write("Enter two numbers and choose an operator to see the result.")
+
+    # Layout using columns for a cleaner look
+    col1, col2 = st.columns(2)
+    
+    with col1:
+        num1 = st.number_input("Enter first number", value=0.0)
+    with col2:
+        num2 = st.number_input("Enter second number", value=0.0)
+
+    # Operator selection
+    operation = st.selectbox("Choose an operation", ("+", "-", "*", "/"))
+
+    # Calculation logic
+    result = None
+    error_msg = None
+
+    if st.button("Calculate"):
+        if operation == "+":
+            result = num1 + num2
+        elif operation == "-":
+            result = num1 - num2
+        elif operation == "*":
+            result = num1 * num2
+        elif operation == "/":
+            if num2 != 0:
+                result = num1 / num2
+            else:
+                error_msg = "Cannot divide by zero!"
+
+        # Display result
+        if error_msg:
+            st.error(error_msg)
+        else:
+            st.success(f"**Result:** {result}")
+
+if __name__ == "__main__":
+    main()