Not running :(

[stroundlunar-ai]

Describe the bug

I can't run my code

Steps to reproduce

idk

Expected behavior

to run

Screenshots

No response

Environment

• Operating System:
• Python version:
• Software versions:
  • Briefcase:
  • Toga:
  • ...

Logs

Additional context

here's my code:
import toga, faker
from toga.style.pack import COLUMN, ROW

class HelloWorld(toga.App):
def greeting(name):
if name:
return f"Hello, {name}"
else:
return "Hello, stranger"

def startup(self):
   main_box = toga.Box(direction=COLUMN)

   name_label = toga.Label(
       "Your name: ",
       margin=(0, 5),
   )
   self.name_input = toga.TextInput(flex=1)

   name_box = toga.Box(direction=ROW, margin=5)
   name_box.add(name_label)
   name_box.add(self.name_input)
   print(f"{self.name_input.value}")

   button = toga.Button(
       "Say Hello!",
       on_press=self.say_hello,
       margin=5,
   )

   main_box.add(name_box)
   main_box.add(button)

   self.main_window = toga.MainWindow(title=self.formal_name)
   self.main_window.content = main_box
   self.main_window.show()

async def say_hello(self, widget):
    fake = faker.Faker()
    await self.main_window.dialog(
    toga.InfoDialog(
        greeting(self.name_input.value),
        f"A message from {fake.name()}: {fake.text()}",
    )
)

def main():
return HelloWorld()

[mhsmith]

Please don't ignore the issue template, it's there to save everybody's time. In particular, "steps to reproduce" means "tell us exactly what you did and what happened, including any error messages".

[mhsmith]

If you still need help with this, please post the requested information, and we'll reopen the issue.