pyinstaller freeze single app can't work

[HuerFu]

Specification

• pywebview version: pywebview3.0.1
• platform / version: win10 64

Description

The pywebview runs normally, but after pyinstaller packages a single application in - F mode, the exe program fails to run, indicating that the breakpoint has reached the breakpoint.
I hope you can help me. Thank you.

Practicalities

• I am willing to work on this issue myself.

• I am prepared to support this issue financially.

[r0x0r]

Take a look at a solution described here #343 (comment)

[HuerFu]

@r0x0r I did it in your way, as follows：

But it had no effect.When I open the generated exe file after packaging, I still report the same error, as follows:

The debug.log file will output the following information:
[0812/112825.786:ERROR:icu_util.cc(133)] Invalid file descriptor to ICU data received.

[HuerFu]

Only in gui='cef' mode will this error occur, other modes are normal. But for some specific reasons, I have to use the gui='cef' model. So I'm wondering why this error occurs when using the cef renderer.
I found a lot of information on the internet, but I didn't find an effective solution. Thank you.

[falan]

FYR,
Have you try to pack bare bone cef pywebview app ?
I remember I have encounter something like this. It was the problem with ceftpyhon3 not packing correctly with pyinstaller. You can go to cefpython3 website to use their cefpython3-hook. I use their hook and working correctly after changing the hook of pyinstaller.

[HuerFu]

@falan Hello, could you tell me how to use the hook of cefpython 3? Thank you

[HuerFu]

FYR,
Have you try to pack bare bone cef pywebview app ?
I remember I have encounter something like this. It was the problem with ceftpyhon3 not packing correctly with pyinstaller. You can go to cefpython3 website to use their cefpython3-hook. I use their hook and working correctly after changing the hook of pyinstaller.

I tried pack bare bone cef pywebview app ,but report the same error.

[falan]

@falan Hello, could you tell me how to use the hook of cefpython 3? Thank you

Go to
https://github.com/cztomczak/cefpython/tree/master/examples/pyinstaller

you can use the pyinstaller.spec as reference.
Copy hook-cefpython3.py to your local python /site-packages/PyInstaller/hooks/
You might also need to use latest hook-webview.py from pyinstaller
https://github.com/pyinstaller/pyinstaller/blob/develop/PyInstaller/hooks/hook-webview.py

Good luck.

[HuerFu]

@falan Hello, could you tell me how to use the hook of cefpython 3? Thank you

Go to
https://github.com/cztomczak/cefpython/tree/master/examples/pyinstaller

you can use the pyinstaller.spec as reference.
Copy hook-cefpython3.py to your local python /site-packages/PyInstaller/hooks/
You might also need to use latest hook-webview.py from pyinstaller
https://github.com/pyinstaller/pyinstaller/blob/develop/PyInstaller/hooks/hook-webview.py

Good luck.

I successfully solved this problem through your method. That's great. Thank you so much. I've been puzzled by this problem for a long time. I'm really happy to be able to solve it. Thank you again.

[HuerFu]

Take a look at a solution described here #343 (comment)

Thank you. It's settled. Thank you.