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classification
Title: os.tmpfile seek(0) fails on cygwin
Type: Stage:
Components: Library (Lib) Versions: Python 2.3
process
Status: closed Resolution: fixed
Dependencies: Superseder:
Assigned To: jlt63 Nosy List: jlt63, nnorwitz, tebeka
Priority: normal Keywords:

Created on 2004-01-01 10:29 by tebeka, last changed 2022-04-11 14:56 by admin. This issue is now closed.

Messages (5)
msg19498 - (view) Author: Miki Tebeka (tebeka) * Date: 2004-01-01 10:29 
[12:25] $python
Python 2.3.3 (#1, Dec 22 2003, 11:56:28) 
[GCC 3.3.1 (cygming special)] on cygwin
Type "help", "copyright", "credits" or "license" for
more information.
>>> from os import tmpfile
>>> f = tmpfile() 
>>> f.seek(0)
Traceback (most recent call last):
  File "<stdin>", line 1, in ?
IOError: [Errno 29] Illegal seek
>>>
msg19499 - (view) Author: Neal Norwitz (nnorwitz) * (Python committer) Date: 2004-01-01 21:17 
Logged In: YES 
user_id=33168

Works on Linux.  Jason, any ideas?
msg19500 - (view) Author: Jason Tishler (jlt63) * (Python triager) Date: 2004-01-02 20:21 
Logged In: YES 
user_id=86216

Hmm...was someone looking over my shoulder?  Guess
what I was investigating before I broke for New
Years?

$ python /usr/lib/python2.3/test/regrtest.py -l test_os
test_os
test test_os failed -- Traceback (most recent call last):
  File "/tmp/python.280/usr/lib/python2.3/test/test_os.py", 
line 50, in test_tmpfile
IOError: [Errno 29] Illegal seek

The good news is this problem is fixed in Cygwin
CVS:

http://cygwin.com/ml/cygwin-cvs/2003-q4/msg00076.html

The bad news is I must rebuild against the next
official Cygwin release (i.e. 1.5.6) before users
can get this fix.  Just dropping in the latest
Cygwin snapshot will not work, because Cygwin's
64-bit I/O magic is resolved at link time not
runtime.

I will release a new Cygwin Python package ASAP
after Cygwin 1.5.6 is released.

BTW, doesn't it *always* work on Linux! :,)
msg19501 - (view) Author: Jason Tishler (jlt63) * (Python triager) Date: 2004-01-26 17:00 
Logged In: YES 
user_id=86216

I'm waiting for Cygwin 1.5.7, because 1.5.6 is too unstable.
Sorry for the delay...
msg19502 - (view) Author: Jason Tishler (jlt63) * (Python triager) Date: 2004-04-30 13:42 
Logged In: YES 
user_id=86216

First Cygwin was unstable, then I became unstable... :,)

Cygwin became stable (enough) again with version 1.5.9.
Unfortunately, it was released right when I was switching
jobs. Thanks for your patience.
History
Date User Action Args
2022-04-11 14:56:01adminsetgithub: 39746
2004-01-01 10:29:38tebekacreate