Desktop Favicon Failed - How to fix this (help Wanted)

[WorldOfDex]

File: test_icon.py (Save in the same folder as main.py, e.g., Src/)

import flet as ft
from pathlib import Path
import sys

def main(page: ft.Page):
page.title = "Icon Test"
script_dir = Path(file).parent.resolve()
assets_path = script_dir / "assets" # Assumes 'assets' is next to this script
icon_filename = "favicon.ico" # Using .ico as requested
icon_abs_path = assets_path / icon_filename

print("-" * 20)
print(f"Minimal Test App")
print(f"Script directory: {script_dir}")
print(f"Assets directory expected at: {assets_path}")
print(f"Icon file expected at: {icon_abs_path}")

# Check if the icon file exists at the absolute path
if icon_abs_path.is_file():
    print("Icon file FOUND.")
    try:
        # --- Setting the window icon ---
        # Flet uses the path relative to the assets_dir passed to ft.app()
        # OR potentially the absolute path might work on some platforms
        # We will pass the absolute path to assets_dir and use the relative path here.
        page.window_icon = icon_filename
        print(f"Attempting to set page.window_icon = '{icon_filename}'")
        # ---- Alternative: Try Absolute Path ----
        # page.window_icon = str(icon_abs_path)
        # print(f"Attempting to set page.window_icon = '{str(icon_abs_path)}'")
        # ---- End Alternative ----

    except Exception as e:
        print(f"ERROR setting page.window_icon: {e}")
else:
    print("Icon file NOT FOUND at the expected location.")
    print("Window icon cannot be set.")

print("-" * 20)

page.add(ft.Text(f"Check the window title bar icon.\nLooking for: {icon_abs_path}"))
page.update()

--- Running the minimal app ---

if name == "main":
script_dir = Path(file).parent.resolve()
# Define assets directory relative to this script file
assets_dir_for_app = str(script_dir / "assets")

# Check if the assets directory exists before running
if not Path(assets_dir_for_app).is_dir():
    print(f"CRITICAL ERROR: Assets directory not found at {assets_dir_for_app}")
    print("Make sure the 'assets' folder exists in the same directory as test_icon.py.")
    sys.exit(1)

print(f"Running minimal test with assets_dir = {assets_dir_for_app}")
ft.app(target=main, assets_dir=assets_dir_for_app)

[ap4499]

Are you using Windows or Mac? Is this when built (Flet Build), or when using Flet Run, or are you using Flet Pack?

Try using Flet Build, and see what you get - I'm unsure whether the Favicon will be picked up using Flet Run (although, I haven't developed on Windows since Flet Pack tbh)

[WorldOfDex]

its window