Cast input ints to strings

app.py

@@ -32,9 +32,9 @@ def main():
 # The function below is executed when someone requests a URL with the pin number and action in it:
 @app.route("/<change_pin>/<action>")
 def action(change_pin, action):
-    print("Input value before change: " + str(GPIO.input(change_pin)))
     change_pin = int(change_pin)
     device_name = pins[change_pin]['name']
+    print("Input value before change: " + str(GPIO.input(change_pin)))
 
     if action == "on":
         GPIO.output(change_pin, GPIO.HIGH)