strange behaviour when writing a large amount of data on stdout

[Manlio Perillo]

Regards.

On my system:
Python 2.4.1 (#65, Mar 30 2005, 09:13:57) [MSC v.1310 32 bit (Intel)]
on win32, Windows XP

I have this problem:

n = 61409 + 1
data = 'x' * n print data

Traceback (most recent call last):
File "xxx", line xxx, in ?
print data
IOError: [Errno 12] Not enough space
Can someone reproduce this bug?
I begin to think that my system is messed up...

Thanks Manlio Perillo

[bruno at modulix]

Manlio Perillo wrote:

Regards.

On my system:
Python 2.4.1 (#65, Mar 30 2005, 09:13:57) [MSC v.1310 32 bit (Intel)]
on win32, Windows XP

I have this problem:

n = 61409 + 1
data = 'x' * n
print data

Traceback (most recent call last):
File "xxx", line xxx, in ?
print data
IOError: [Errno 12] Not enough space

Can someone reproduce this bug?

Not here, but it's a bipro amd64 with a couple Mb of ram !-)
(for the record, it works fine for far greater values, ie n = 128000000)
I begin to think that my system is messed up...

<troll>
OF course it's messed up, else it wouldn't be a real Windows box !-)
</troll>

--
bruno desthuilliers
python -c "print '@'.join(['.'.join([w[::-1] for w in p.split('.')]) for
p in 'o****@xiludom. gro'.split('@')])"

[jepler]

That code works here.

Python2.4 (#60, Nov 30 2004, 11:49:19) [MSC v.1310 32 bit (Intel)] on win32

It's Windows XP, Pentium 4, unknown amount of RAM. I'm running python.exe in a
console window. It also worked in IDLE.

Jeff

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[Fredrik Lundh]

Manlio Perillo wrote:

Python 2.4.1 (#65, Mar 30 2005, 09:13:57) [MSC v.1310 32 bit (Intel)]
on win32, Windows XP

I have this problem:

n = 61409 + 1
data = 'x' * n print data

Traceback (most recent call last):
File "xxx", line xxx, in ?
print data
IOError: [Errno 12] Not enough space

errno 12 is ENOMEM (that is, the system did not have enough memory
to finish an operation).

is the above a complete interpreter session? if it is, why did you xxx out
the filename (<stdin>) and line number?

</F>

[Manlio Perillo]

On Wed, 23 Nov 2005 14:59:45 +0100, "Fredrik Lundh"
<fr*****@python ware.com> wrote:

Manlio Perillo wrote:

Python 2.4.1 (#65, Mar 30 2005, 09:13:57) [MSC v.1310 32 bit (Intel)]
on win32, Windows XP

I have this problem:

> n = 61409 + 1
> data = 'x' * n

> print data

Traceback (most recent call last):
File "xxx", line xxx, in ?
print data
IOError: [Errno 12] Not enough space

errno 12 is ENOMEM (that is, the system did not have enough memory
to finish an operation).

....

However I think the error message is not a good one.
Better a "Not enough memory"
is the above a complete interpreter session? if it is, why did you xxx out
the filename (<stdin>) and line number?

I put these instructions in a script and executed it (from the
console).

The same problem with a complete interpreter session.

Regards Manlio Perillo

[Manlio Perillo]

On Wed, 23 Nov 2005 07:48:30 -0600, je****@unpython ic.net wrote:

That code works here.

Python2.4 (#60, Nov 30 2004, 11:49:19) [MSC v.1310 32 bit (Intel)] on win32

It's Windows XP, Pentium 4, unknown amount of RAM. I'm running python.exe in a
console window. It also worked in IDLE.

Jeff

Thanks.
So, it's seem to be a specific problem of Windows XP(?).

Nobody can test it on a Windows 98/2000 machine?

Regards Manlio Perillo

[Grant Edwards]

On 2005-11-23, Manlio Perillo <NO************ ******@libero.i t> wrote:

On Wed, 23 Nov 2005 07:48:30 -0600, je****@unpython ic.net wrote:

That code works here.

Python2.4 (#60, Nov 30 2004, 11:49:19) [MSC v.1310 32 bit (Intel)] on win32

It's Windows XP, Pentium 4, unknown amount of RAM. I'm running python.exe in a
console window. It also worked in IDLE.

Jeff

Thanks.
So, it's seem to be a specific problem of Windows XP(?).

Nobody can test it on a Windows 98/2000 machine?

Works fine under Windows Me with 32MB of RAM

ActivePython 2.3.4 Build 233 (ActiveState Corp.) based on
Python 2.3.4 (#53, Oct 18 2004, 20:35:07) [MSC v.1200 32 bit (Intel)] on win32

--
Grant Edwards grante Yow! Alright,
at you!! Imitate a WOUNDED
visi.com SEAL pleading for a PARKING
SPACE!!

[Fredrik Lundh]

Manlio Perillo wrote:

>> print data

Traceback (most recent call last):
File "xxx", line xxx, in ?
print data
IOError: [Errno 12] Not enough space

errno 12 is ENOMEM (that is, the system did not have enough memory
to finish an operation).

However I think the error message is not a good one.
Better a "Not enough memory"

the message text is provided by the operating system (or rather, by
the C library). I'm not sure rewriting error messages is a good thing...

(if Python itself runs out of memory, it'll raise a MemoryError instead)

</F>

[snoe]

Python 2.4 (#60, Nov 30 2004, 11:49:19) [MSC v.1310 32 bit (Intel)] on
win32

No problems on Windows 2000 Pro with 512MB of RAM

[Fredrik Lundh]

Manlio Perillo wrote:

So, it's seem to be a specific problem of Windows XP(?).

Nobody can test it on a Windows 98/2000 machine?

works fine on assorted XP and 2000 boxes for me.

is the "n = 61409 + 1" stuff necessary, or do you get the same
problem for all outputs over a given size ? even if you just do,
say,

print '*'*61410

? does print '*'*61409 work? is it always the same number, or
does it vary depending on, say, what other programs you're using,
how much you've already printed to the console, etc. are you
using a standard cmd.exe in a standard console? no cygwin or
other oddities?

</F>