[BUG] problem using --noconsole flag

[Saulo-Felipe]

Describe the problem
I'm having problems whenever I use the --noconsole flag. When I create the executable just using --onefile everything works correctly, however, the terminal opens every time I run the .exe executable (which is a problem). I hope you can help me with this problem, I'll leave the image of the error that occurs whenever I have to run the executable created with the --noconsole flag.

• OS: windows 11
• Browser chrome

UPDATE 1:
I created a simple project from scratch with just the eel library, a single python file and a simple html file and when using --noconsole the same problem I described in the image above occurred, which leads me to believe that it is an error in the Library. I need urgent help, because I bet all the development of my project on this library. Thank you for any help.

UPDATE 2:
I managed to work around the problem but not solve it. I used the following:

import os
import sys

f = open(os.devnull, 'w')
sys.stdout = f
sys.stderr = f

[Nriver]

related issue #654

[ajmirsky]

The terminal opening is a side-effect of an underlying issue that eel can't instantiate correctly. Even if you redirect the output to a file to prevent the console from opening, eel will most likely have trouble running. Eel uses pyinstaller to create a .spec file and build into a standalone application; line 15 of __init__.py is the import of bottle so the problem is somewhere in how pyinstaller is packaging your app, not necessarily with eel directly.

Also, redirecting stdout or stderr will likely mask a problem if your application does have a failure. Better practice is to configure python logging to redirect exceptions to a log file. print should be turned into logger.info or logger.debug so that you have insight into your running application.

[chrislilley13]

I had the same issue. Only I modified the bottle.py file online 73 like this:
try:
_stdout = sys.stdout.write if sys.stdout is not None else lambda x: None
_stderr = sys.stderr.write if sys.stderr is not None else lambda x: None
except AttributeError:
_stdout = lambda x: None
_stderr = lambda x: None

to properly handle my custom logger. After that my noconsole builds were working.