Re: shelve crashing under Win ME
- From: jim-on-linux <inq1ltd@xxxxxxxxxxx>
- Date: Sat, 30 Jun 2007 10:38:27 -0400
On Saturday 30 June 2007 10:07, jim-on-linux
wrote:
On Saturday 30 June 2007 04:52,
gluckj@xxxxxxxxx
wrote:
Hi,
I'm not a Win ME fan myself (I'm a Mac user),
but I'm here in Thailand developing software
for special-needs kids, and the test PC in my
home office is a Win ME machine (sigh). So
when I ported my Python program today to the
PC, it quickly crashed. Everything seems to
work except for shelve. Using the latest
version of Python (2.5.1), when I do the
following in IDLE on the Win ME machine
here's the result:
Python 2.5.1 (r251:54863, Apr 18 2007,
08:51:08) [MSC v.1310 32 bit (Intel)] on
win32 IDLE 1.2.1
import shelve
f=shelve.open("foo")
Traceback (most recent call last):
File "<pyshell#1>", line 1, in <module>
f=shelve.open("foo")
File "C:\PYTHON25\lib\shelve.py", line 225,
in open return DbfilenameShelf(filename,
flag, protocol, writeback)
File "C:\PYTHON25\lib\shelve.py", line 209,
in __init__
Shelf.__init__(self,
anydbm.open(filename, flag), protocol,
writeback)
File "C:\PYTHON25\lib\anydbm.py", line 83,
in open return mod.open(file, flag, mode)
File "C:\PYTHON25\lib\dbhash.py", line 16, in
open return bsddb.hashopen(file, flag, mode)
File "C:\PYTHON25\lib\bsddb\__init__.py",
line 306, in hashopen
d.open(file, db.DB_HASH, flags, mode)
DBError: (5, 'Input/output error')
For those who know shelve, this should
actually run fine (if the file "foo" does not
exist it should create it). Printing the
value of "f" should show an empty dictionary
{}.
It does run fine on my iBook (under Python
2.4.4) and on my iBook's Virtual PC running
Win XP & Python 2.5.0. I do not think this is
a Python 2.5.1 problem, because my first
attempt to run my program on the Win ME
machine was with a version of the program I
ported using Py2exe on the VPC under Python
2.5.0, and it crashed the same way when run
on the Win ME machine (I subsequently
installed Python on the Win ME PC to try to
get to the root of the problem.)
Help! How do I get Win ME (or at least the
misbehaving Win ME machine in my office) to
run shelve? (or more specifically run bsddb's
hashopen?)
Or should I trash shelve entirely and rewrite
all my code to use a simpler, homemade
database scheme?
Thanks for any advice!
Warmly,
Joel
joelgluck@xxxxxxxxx
what version of py2exe are you using?
I had a similar problem with an old version of
py2exe but it it is fixed now. If my memory is
correct I had to import dbhash into my setup
for py2exe back then to fix it..
Your code for shelve is correct, the problem is
someplace else.
jim-on-linux
http:\\www.inqvista.com
Correction:
I had to import dbhash into my program to make
things work.
jim-on-linux
http:\\www.inqvista.com
.
- References:
- shelve crashing under Win ME
- From: gluckj
- shelve crashing under Win ME
- Prev by Date: Re: linecache and comparison with input
- Next by Date: Re: PEP 3107 and stronger typing (note: probably a newbie question)
- Previous by thread: Re: shelve crashing under Win ME
- Next by thread: linecache and comparison with input
- Index(es):
Relevant Pages
|
