Is flet publish broken?

[TobiasHT5]

Question

I tried building a static flet app with flet publish but was getting an attribute error. I thought it was just my app but even examples failed to work when built with flet publish. Is there a breaking that was introduced?

Code sample

import flet as ft

def main(page: ft.Page):
    def bs_dismissed(e):
        print("Dismissed!")

    def show_bs(e):
        bs.open = True
        bs.update()

    def close_bs(e):
        bs.open = False
        bs.update()

    bs = ft.BottomSheet(
        ft.Container(
            ft.Column(
                [
                    ft.Text("This is sheet's content!"),
                    ft.ElevatedButton("Close bottom sheet", on_click=close_bs),
                ],
                tight=True,
            ),
            padding=10,
        ),
        open=True,
        on_dismiss=bs_dismissed,
    )
    page.overlay.append(bs)
    page.add(ft.ElevatedButton("Display bottom sheet", on_click=show_bs))

ft.app(target=main)

Error message

Loading micropip, packaging
pyodide.asm.js:9 Loaded packaging, micropip
pyodide.asm.js:9 Loading requirements.txt: ['flet-pyodide']
pyodide.asm.js:9 Loading six
pyodide.asm.js:9 Loaded six
python.js:23 Python engine initialized!
pyodide.asm.js:9 Unhandled error processing page session : Traceback (most recent call last):
pyodide.asm.js:9   File "/lib/python3.11/site-packages/flet/flet.py", line 71, in on_session_created
pyodide.asm.js:9     target(page)
pyodide.asm.js:9   File "/home/pyodide/test.py", line 10, in main
pyodide.asm.js:9     page.update()
pyodide.asm.js:9   File "/lib/python3.11/site-packages/flet_core/page.py", line 324, in update
pyodide.asm.js:9     r = self.__update(self)
pyodide.asm.js:9         ^^^^^^^^^^^^^^^^^^^
pyodide.asm.js:9   File "/lib/python3.11/site-packages/flet_core/page.py", line 426, in __update
pyodide.asm.js:9     commands, added_controls, removed_controls = self.__prepare_update(*controls)
pyodide.asm.js:9                                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
pyodide.asm.js:9   File "/lib/python3.11/site-packages/flet_core/page.py", line 439, in __prepare_update
pyodide.asm.js:9     control.build_update_commands(
pyodide.asm.js:9   File "/lib/python3.11/site-packages/flet_core/control.py", line 454, in build_update_commands
pyodide.asm.js:9     innerCmds = ctrl._build_add_commands(
pyodide.asm.js:9                 ^^^^^^^^^^^^^^^^^^^^^^^^^
pyodide.asm.js:9   File "/lib/python3.11/site-packages/flet_core/control.py", line 523, in _build_add_commands
pyodide.asm.js:9     childCmd = control._build_add_commands(
pyodide.asm.js:9                ^^^^^^^^^^^^^^^^^^^^^^^^^^^
pyodide.asm.js:9 AttributeError: 'str' object has no attribute '_build_add_commands'
pyodide.asm.js:9

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

[FeodorFitsner]

What do you have in requirements.txt?

[FeodorFitsner]

What Flet version do you have?

[TobiasHT5]

version 0.22.0

[FeodorFitsner]

See what files/deps you app is loading on "Network" tab of developer tools. Do it in a "private session", without cache.

[TobiasHT5]

@FeodorFitsner

[TobiasHT5]

@FeodorFitsner also flet build produces the same result on my end.

[TobiasHT5]

Flet 0.22.1 fixed the issue.