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classification
Title: codec readline() splits lines apart
Type: Stage:
Components: Library (Lib) Versions: Python 2.5
process
Status: closed Resolution: fixed
Dependencies: Superseder:
Assigned To: Nosy List: doerwalter, irmen
Priority: normal Keywords:

Created on 2005-01-09 16:45 by irmen, last changed 2022-04-11 14:56 by admin. This issue is now closed.

Files
File name Uploaded Description Edit
example.txt irmen, 2005-01-09 16:45 example shell session that shows the problem
Messages (3)
msg23904 - (view) Author: Irmen de Jong (irmen) (Python triager) Date: 2005-01-09 16:45 
It seems that the fix for bug 1076985 (Incorrect
behaviour of StreamReader.readline leads to crash) has
introduced a new bug.
using current cvs Python on Linux, I observe faulty
behavior of the readline() method on file-like objects
returned from the codecs module.
See the attached example.txt.
The readline() breaks certain lines in half.
It only happens when a certain encoding is used, so regular
file objects behave as expected. Also, readlines()
works fine.
msg23905 - (view) Author: Walter Dörwald (doerwalter) * (Python committer) Date: 2005-01-10 11:15 
Logged In: YES 
user_id=89016

The problem is that the first readline() reads more than the
first line, returns the first line and puts back the rest
for the next read. The next call to readline() discovers
that there is already data there and doesn't call read()
again. I'm working on a patch.
msg23906 - (view) Author: Walter Dörwald (doerwalter) * (Python committer) Date: 2005-01-10 12:26 
Logged In: YES 
user_id=89016

Checked in as:
Lib/codecs.py 1.37
Lib/test/test_codecs.py 1.18
Lib/codecs.py 1.35.2.2
Lib/test/test_codecs.py 1.15.2.2

Thanks for the report!
History
Date User Action Args
2022-04-11 14:56:09adminsetgithub: 41415
2005-01-09 16:45:57irmencreate