The variable prop is bytes type, but this code is trying to split it using string type, such as prop.split('"')[1] at line 132.
This always raise TypeError, so evpath is always None type when prop.startswith(b'Device Node') is true.
I believe it is a miss point when supporting Python 3.x (related issue #3373 and pr #3417).
Expected behaviorprop.split(b'"')[1]
To Reproduce
I regret to say that I can't reproduce this error because I found this bug through my type checker.
Nevertheless, I report this issue because I think it is the miss point when changing string to bytes.
If this is not indeed a bug, I apologize for any inconvenience caused.
Software Versions
Describe the bug I found a potential unexpected behavior due to a TypeError between str and bytes in
query_xinputfunction.https://github.com/kivy/kivy/blob/c0d4894384abb81cf4729984a1eaa4c437d266da/kivy/input/providers/probesysfs.py#L116-L136
The variable
propis bytes type, but this code is trying to split it using string type, such asprop.split('"')[1]at line 132. This always raise TypeError, soevpathis always None type whenprop.startswith(b'Device Node')is true. I believe it is a miss point when supporting Python 3.x (related issue #3373 and pr #3417).Expected behavior
prop.split(b'"')[1]To Reproduce I regret to say that I can't reproduce this error because I found this bug through my type checker. Nevertheless, I report this issue because I think it is the miss point when changing string to bytes. If this is not indeed a bug, I apologize for any inconvenience caused.
Thank you.
Code and Logs and screenshots
https://github.com/kivy/kivy/blob/c0d4894384abb81cf4729984a1eaa4c437d266da/kivy/input/providers/probesysfs.py#L116-L136