[Python] How to work with client_storage without the "NotImplementedError" in flet, Python...

Well, I want to write an async app on Flet with Telethon. It is my first time so do not judge strictly pls.

That's my code:

main.py

import flet as ft
import main_page


async def main(page: ft.Page):
page.title = "Telegram resender 3000"
page.horizontal_alignment = ft.CrossAxisAlignment.START
await page.update_async()

await page.add_async(main_page.MainPage(page))


if __name__ == "__main__":
ft.app(target=main)


main_page.py

import flet as ft
import telethon
from .load_env import *
import asyncio
import os

import support_classes as sc


class MainPage(ft.UserControl):

def __init__(self, page):
super().__init__()
self.page = page

def build(self):
self.idx = 0
# create text
self.add_account_text = ft.Text(value="Add your tg account here")

# create input for writing phone number and ADD btn
self.add_phone_number = ft.TextField(
hint_text="Enter your phone number")
self.add_phone_btn = ft.FloatingActionButton(
icon=ft.icons.ADD, on_click=self.register_new_acc)

self.accs_list = ft.Row(controls=[]) # create field for tg accs
self.upload_tg_accs_btn = ft.IconButton(
icon=ft.icons.DOWNLOAD,
icon_color="blue400",
icon_size=30,
tooltip="Upload existing telegram accounts",
on_click=self.get_tg_accs,
)

self.add_account_part = ft.Column(
width=300,
controls=[
ft.Row(
controls=[
self.add_account_text,
self.add_phone_number,
self.add_phone_btn
]
),
ft.Row(controls=[
self.accs_list,
self.upload_tg_accs_btn,
]),
])

return self.add_account_part

async def register_new_acc(self, e):

# add field for code
self.code_recieve_input = ft.TextField(
hint_text="Enter the code and wait...")

self.add_account_part.controls.append(self.code_recieve_input)
await self.add_account_part.update_async()

# create a session and get request for a code
client = telethon.TelegramClient(
str(self.idx), api_id=api_id, api_hash=api_hash)

# save the phone
phone = self.add_phone_number.value

# make input empty
self.add_phone_number.value = ""

await client.start(phone=phone, code_callback=lambda: self.code_receive(phone))

async def code_receive(self, phone):
# wait for user's answer
await asyncio.sleep(30)

# remove code input
self.add_account_part.controls.remove(self.code_recieve_input)
await self.add_account_part.update_async()

# add a new acc to a list
acc = sc.TGAcc(
num=self.code_recieve_input.value,
idx=self.idx,
del_func=self.delete_acc
)

self.accs_list.controls.append(acc)
await self.accs_list.update_async()

# add number to a storage
tg_accs = {}
# if we already have nums
if self.page.client_storage.contains_key_async("tg_accs"):
tg_accs = self.page.client_storage.get("tg_accs")

self.page.client_storage.set("tg_accs", tg_accs + {self.idx: phone})

self.idx += 1 # increase the idx (of accounts)
return self.code_recieve_input.value

async def delete_acc(self, acc):
# delete from list and update
self.accs_list.controls.remove(acc)
await self.accs_list.update_async()

# remove session file
os.remove(f'{acc.idx}.session')

async def get_tg_accs(self, e):

# create list of all connected accs
if self.page.client_storage.contains_key('tg_accs'):
accs_list = [sc.TGAcc(num=v, idx=k, del_func=self.delete_acc)
for k, v in self.page.client_storage.get("tg_accs").items()]

# set our data
self.accs_list.controls = accs_list

await self.accs_list.update_async()


tg_acc.py

import flet as ft
import os

class TGAcc(ft.UserControl):

def __init__(self, num, idx, del_func):
super().__init__()
self.num = num
self.idx = idx
self.del_func = del_func

def build(self):
# build the container
self.container = ft.Column(
controls=[
ft.Row(
controls=[
ft.Text(f"{self.idx} = {self.num}"),
ft.IconButton(
icon=ft.icons.DELETE_FOREVER_ROUNDED,
icon_color="pink600",
icon_size=30,
tooltip="Delete account",
on_click=self.delete_acc
)
]
)
]
)

return self.container

async def delete_acc(self, e):
await self.del_func(self)


Also I have load_env.py file there I load all secret data.

And I "sorted" these file into folders so that's the screen. I also added screen of UI.



**So, the problem: ** I need to load data from client_storage in startup of a program and after write it into self.accs_list.controls. idk how do it on startup of all, so I created a download btn, by clicking on it data should load but all that loads is an exception raise NotImplementedError().

I tried to delete self.page = page in init of MainPage and just use self.page everywhere in code below but no result has appeared(

Here an error, that's always the same

Task exception was never retrieved
future: <Task finished name='Task-15' coro=<__connect_internal_async.<locals>.on_event() done, defined at /home/felix/anaconda3/envs/telegram_bot/lib/python3.10/site-packages/flet_runtime/app.py:425> exception=NotImplementedError()>
Traceback (most recent call last):
File "/home/felix/anaconda3/envs/telegram_bot/lib/python3.10/site-packages/flet_runtime/app.py", line 427, in on_event
await conn.sessions[e.sessionID].on_event_async(
File "/home/felix/anaconda3/envs/telegram_bot/lib/python3.10/site-packages/flet_core/page.py", line 482, in on_event_async
await handler(ce)
File "/home/felix/Documents/code/flet-telegram-repost/main_page/main_page.py", line 115, in get_tg_accs
if self.page.client_storage.contains_key('tg_accs'):
File "/home/felix/anaconda3/envs/telegram_bot/lib/python3.10/site-packages/flet_core/client_storage.py", line 46, in contains_key
self.__page.invoke_method(
File "/home/felix/anaconda3/envs/telegram_bot/lib/python3.10/site-packages/flet_core/page.py", line 859, in invoke_method
result = self._send_command(
File "/home/felix/anaconda3/envs/telegram_bot/lib/python3.10/site-packages/flet_core/page.py", line 700, in _send_command
return self.__conn.send_command(
File "/home/felix/anaconda3/envs/telegram_bot/lib/python3.10/site-packages/flet_core/connection.py", line 21, in send_command
raise NotImplementedError()
NotImplementedError


idk how to fix my problem, in docs any examples with the client_storage + ft.UserControl I didnt find. That's my first time so I can do veeeery stupid mistakes.

If anyone knows how to load data from client_storage on startup of Flet app write pls, I listen carefully)

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