Issue With Accessing PubSub attributes on MAC OS Ventura 13.4

[Dundric]

Question

Hello flet community, I am using Flet for the first time on my M1 Mac with OSX Ventura 13.4 and I am having trouble with accessing the attributes of ft.Page.pubsub. To show this is not just a user error, I copy and pasted an exact example code for pubsub from the website directly into a python file and ran it, but it still produces the has no attribute error. Everything else in the library seems to work fine. I just can't access pubsub. My python is 3.11.3 and everything from flet installed fine besides the error below, but I've tried to uninstall and reinstall different version of httpx and it only adds more errors. If anyone can help me I would really appreciate it.

ERROR: pip's dependency resolver does not currently take into account all the packages that are installed. This behaviour is the source of the following dependency conflicts.
argilla 1.8.0 requires httpx<0.24,>=0.15, but you have httpx 0.24.1 which is incompatible.

Code sample

import flet as ft

def main(page: ft.Page):
    page.title = "Flet Chat"

    # subscribe to broadcast messages
    def on_message(msg):
        messages.controls.append(ft.Text(msg))
        page.update()

    page.pubsub.subscribe(on_message)

    def send_click(e):
        page.pubsub.send_all(f"{user.value}: {message.value}")
        # clean up the form
        message.value = ""
        page.update()

    messages = ft.Column()
    user = ft.TextField(hint_text="Your name", width=150)
    message = ft.TextField(hint_text="Your message...", expand=True)  # fill all the space
    send = ft.ElevatedButton("Send", on_click=send_click)
    page.add(messages, ft.Row(controls=[user, message, send]))

ft.app(target=main, view=ft.AppView.WEB_BROWSER)

Error message

Unhandled error processing page session a7e06b49-0f9a-4457-878f-9e95c017c3a1: Traceback (most recent call last):
  File "/Users/philipm614/opt/anaconda3/envs/NuclGpt/lib/python3.11/site-packages/flet_runtime/app.py", line 357, in on_session_created
    session_handler(page)
  File "/Users/philipm614/AcademiaGPT/test.py", line 11, in main
    page.pubsub.subscribe(on_message)
    ^^^^^^^^^^^^^^^^^^^^^
AttributeError: 'PubSub' object has no attribute 'subscribe'

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

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