Update app.py

app.py

@@ -1,32 +1,32 @@
 import gradio as gr
 
-def calculator(num1, symbol, num2):
-    if symbol == "add":
+def calculator(num1, operation, num2):
+    if operation == "add":
         return num1 + num2
-    elif symbol == "subtract":
+    elif operation == "subtract":
         return num1 - num2
-    elif symbol == "multiply":
+    elif operation == "multiply":
         return num1 * num2
-    elif symbol == "divide":
+    elif operation == "divide":
         if num2 == 0:
-            raise gr.Error("Cannot divide by Zero!")
+            raise gr.Error("Cannot divide by zero!")
         return num1 / num2
 
 demo = gr.Interface(
-        calculator,
-        [   "number", 
-            gr.Radio(["add", "subtract", "multiply", "divide"]),
-            "number"
-        ],
-        "number",
-         examples=[
-            [5, "add", 3],
-            [4, "divide", 2],
-            [-4, "multiply", 2.5],
-            [0, "subtract", 1.2],
-        ],
-        title="Calculator",
-        description="Here's a sample calculator. Allows you to calculate things like $2+2=4$",
-
-#iface = gr.Interface(fn=calculator, inputs="text", outputs="text")
-demo.launch()
+    calculator,
+    [
+        "number", 
+        gr.Radio(["add", "subtract", "multiply", "divide"]),
+        "number"
+    ],
+    "number",
+    examples=[
+        [5, "add", 3],
+        [4, "divide", 2],
+        [-4, "multiply", 2.5],
+        [0, "subtract", 1.2],
+    ],
+    title="Calculator",
+    description="Here's a sample calculator. Allows you to calculate things like $2+2=4$",
+)
+demo.launch(share=True)