[issue27154] Regression in file.writelines behavior

Terry J. Reedy added the comment: Removing 'b' and 'u', writelines([s]) and write(s) both now read as s. -- nosy: +terry.reedy resolution: -> out of date stage: -> resolved status: open -> closed ___ Python tracker

[issue27154] Regression in file.writelines behavior

Zackery Spytz added the comment: Python 2 is EOL, so I think this issue should be closed. -- nosy: +ZackerySpytz ___ Python tracker ___

[issue27154] Regression in file.writelines behavior

Change by Karthikeyan Singaravelan : -- nosy: +xtreak ___ Python tracker ___ ___ Python-bugs-list mailing list Unsubscribe:

[issue27154] Regression in file.writelines behavior

Changes by Serhiy Storchaka : -- nosy: +serhiy.storchaka ___ Python tracker ___

[issue27154] Regression in file.writelines behavior

R. David Murray added the comment: Thanks. -- nosy: +pitrou ___ Python tracker ___ ___ Python-bugs-list

[issue27154] Regression in file.writelines behavior

Alexey Borzenkov added the comment: Didn't need to bisect, it's very easy to find the problematic commit, since writelines doesn't change that often: https://hg.python.org/releases/2.7.11/rev/db842f730432 The old code was buggy in a sense that it always called PyObject_AsCharBuffer due to

[issue27154] Regression in file.writelines behavior

R. David Murray added the comment: Any chance you could bisect to figure out which changeset caused the problem? I'm surprised that something like this would happen, we aren't in general making changes at that level to python2 any more. -- nosy: +r.david.murray

[issue27154] Regression in file.writelines behavior

Changes by Марк Коренберг : -- nosy: +mmarkk ___ Python tracker ___ ___

[issue27154] Regression in file.writelines behavior

New submission from Alexey Borzenkov: There's a regression in file.writelines behavior for binary files when writing unicode strings, which seems to have first appeared in Python 2.7.7. The problem is that when writing unicode strings the internal representation (UCS2 or UCS4) is written