EXE Built with PyInstaller Takes Too Long to Open

[07rohanraj]

Hi,

I created an executable using PyInstaller, but I'm experiencing significant delays when opening it. The application should open within 20 seconds, but it is currently taking over a minute.

Here’s some context:

• I used the --onefile and --windowed options in the PyInstaller command.
• The EXE includes multiple imports (like requests, pandas, aiohttp, and others) and assets.

My PyInstaller command:
pyinstaller --onefile --windowed --clean --collect-all nicegui --icon ".\assets\shield.ico" --add-data "assets/*;assets" --add-data "frontend;frontend" --add-data "backend;backend" --add-data "_res/*;cyclonedx/schema/_res" .\backend\SBOM_Generator_GUI.py

[bwoodsend]

There's not really anything we can do about it. Don't use onefile mode. Avoid bloat-heavy libraries like pandas. The rest is between you, your application and Windows.

[07rohanraj]

Okay, instead of onefile i'll go with onedir. Thanks.