Using Try / Except to validate content in the textfield

[jvalle63]

Question

Hi Guys!
I'm using try/except to validate content in text fields. such as if the field is empty or if the date is correct.
However, to force the flet to stay within this try/except and not continue executing the script, I am using quit() or exit() at the end of the except clause. See the example below:
The problem is that an exception error occurs in the program because of the quit()...

I want to continue using try/except, but eliminating the exception message
Any idea?

Code sample

cli_name = ft.TextField(label="Nome do cliente",bgcolor=ft.colors.BLUE_100,max_length=30,
                        text_style=ft.TextStyle(size=15,color=ft.colors.GREY_700,weight="BOLD",font_family='Tahoma'),dense=True)


try:
   if len(nome)==0:
   raise ValueError('Nome Deve Ser Cadastrado')
except ValueError as erro:
   cli_name.error_text=erro
   pg.page.update()
   exit()

Error message

"During handling of the above exception, another exception occurred:"
"quit()
 File "<frozen _sitebuiltins>", line 26, in __call__
SystemExit: None"

------------------------------------------------------

• I have searched for answers to my question both in the issues and in previous discussions.