ignored exception

[Skaperen]

i sometimes get this message when i don't want the exception to be ignored:

Output:
Exception ignored in: <_io.TextIOWrapper name='<stdout>' mode='w' encoding='ANSI_X3.4-1968'>
BrokenPipeError: [Errno 32] Broken pipe

something is set in python somewhere to cause this exception to be ignored?  how can i turn it off?  i don't want to catch it myself. i am using python3 as much as i can.

[Ofnuts]

It makes sense to ignore the exception on stdout (and stderr). But getting "broken pipe" errors on stdout means that you have problems elsewhere (likely not in Python itself).

[Skaperen]

the script is outputting too much and i want to get a traceback to find out where, when i pipe it through head.

[nilamo]

when i pipe it through head.

Could the error be directly tied to the fact that you're using head? Wouldn't that close the pipe after a few lines are read?

Do you also get the error if you use tail?

[snippsat]

encoding='ANSI_X3.4-1968' you still have cool encoding
I have mention before in your Unicode post that your encoding must be wrong.

mint@mint ~/Documents $ python test.py | echo

Exception ignored in: <_io.TextIOWrapper name='<stdout>' mode='w' encoding='UTF-8'>
BrokenPipeError: [Errno 32] Broken pipe

mint@mint ~/Documents $ python -c "import sys; print(sys.stdout.encoding)"
UTF-8

mint@mint ~/Documents $ python
Python 3.6.1 (default, May 25 2017, 14:44:39) 
[GCC 5.4.0 20160609] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import sys
>>> sys.getdefaultencoding()
'utf-8'
>>> sys.getfilesystemencoding()
'utf-8'
>>> 

Occasionally, a user's locale is broken and can requires PYTHONIOENCODING=utf-8 to fix the console encoding.

[DeaD_EyE]

Try this: https://stackoverflow.com/a/16865106/2817354

https://docs.python.org/3/library/signal.html

The signal.signal() function allows defining custom handlers to be executed when a signal is received. A small number of default handlers are installed: SIGPIPE is ignored (so write errors on pipes and sockets can be reported as ordinary Python exceptions) and SIGINT is translated into a KeyboardInterrupt exception.

There is also a blog post about it: http://newbebweb.blogspot.de/2012/02/pyt...roken.html

[Skaperen]

when i pipe it through head.

Could the error be directly tied to the fact that you're using head?  Wouldn't that close the pipe after a few lines are read?

Do you also get the error if you use tail?

bingo! that was the problem!