flet python does not work

[tarovq]

import flet as ft
import sqlite3

def fetch_data(table_name):
connection = sqlite3.connect('post_office.db')
cursor = connection.cursor()
cursor.execute(f"SELECT * FROM {table_name}")
rows = cursor.fetchall()
cursor.execute(f"PRAGMA table_info({table_name})")
columns_info = cursor.fetchall()
column_names = [col[1] for col in columns_info]
connection.close()
return column_names, rows

def add_customer(initials, adress, phone, email):
connection = sqlite3.connect('post_office.db')
cursor = connection.cursor()
cursor.execute("INSERT INTO Customers (Initials, Adress, Phone, Email) VALUES (?, ?, ?, ?)",
(initials, adress, phone, email))
connection.commit()
connection.close()

def main(page: ft.Page):
page.title = "Post Office Management System"
page.bgcolor = '#ebebeb'
page.window_maximized = True

initials = ft.TextField(label="Initials")
adress = ft.TextField(label="Adress")
phone = ft.TextField(label="Phone")
email = ft.TextField(label="Email")
add_customer_button = ft.Button(text="Add Customer", on_click=lambda e: add_customer(
    initials.value, adress.value, phone.value, email.value))

page.add(initials, adress, phone, email, add_customer_button)

page.run()

ft.app(target=main)
when I run the code, nothing happens and so with any code where there is import flet as ft

[ndonkoHenri]

Remove page.run(), and rename Button to one of the available buttons (see docs).

Make sure to check your terminal/console, as you will receive error messages when you try to make use of stuffs not present in Flet.

[tarovq]

I fixed everything, nothing is called anyway, even if I write any codes with flet, even the simplest ones, nothing happens, the code is executed but the application is not called

[ndonkoHenri]

Can you share more details to your environment (OS, Flet version etc)?
I suggest you create a new venv, then install flet and retry

[leodpj]

import flet as ft
from flet import ElevatedButton
import sqlite3

#import ElevatedButton and change ft.Button to ElevatedButton as shown

add_customer_button = ElevatedButton(text="Add Customer", on_click=lambda e: add_customer(
    initials.value, adress.value, phone.value, email.value))

page.add(initials, adress, phone, email, add_customer_button)

ft.app(target=main)

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