On 20/05/06, Bruno Desthuilliers [EMAIL PROTECTED] wrote:
Roger Miller a écrit : The basic problem is that the zipfile interface only reads and writes whole files, so it may perform poorly or fail on huge files. At one time I implemented a patch to allow reading files in chunks. However I
believe
Hari Sekhon wrote:
Is it me or is having to use os.system() all the time symtomatic of a
deficiency/things which are missing from python as a language?
it's you.
/F
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Fredrik Lundh wrote:
Hari Sekhon wrote:
Is it me or is having to use os.system() all the time symtomatic of a
deficiency/things which are missing from python as a language?
it's you.
/F
I take it that it's still a work in progress to be able to pythonify
Hari Sekhon wrote:
I take it that it's still a work in progress to be able to pythonify
everything, and until then we're just gonna have to rely on shell and
those great C coded coreutils and stuff like that. Ok, I'm rather fond
of Bash+coreutils, highest ratio of code lines to work I've
Fredrik Lundh wrote:
Hari Sekhon wrote:
I take it that it's still a work in progress to be able to pythonify
everything, and until then we're just gonna have to rely on shell and
those great C coded coreutils and stuff like that. Ok, I'm rather fond
of Bash+coreutils, highest
Hari Sekhon wrote:
I've seen people using everything from zip to touch, either out of
laziness or out of the fact it wouldn't work very well in python, this
zip case is a good example.
so based on a limitation in one library, and some random code you've
seen on the internet, you're making
I do
import zipfile
zip=zipfile.ZipFile('d:\somepath\cdimage.zip')
zip.namelist()
['someimage.iso']
then either of the two:
A) file('someimage.iso','w').write(zip.read('someimage.iso'))
or
B) content=zip.read('someimage.iso')
but both result in the same error:
Traceback (most recent call
Hari Sekhon [EMAIL PROTECTED] writes:
Traceback (most recent call last):
File stdin, line 1, in ?
File D:\u\Python24\lib\zipfile.py, line 357, in read
bytes = dc.decompress(bytes)
MemoryError
Looks like the .iso file is huge. Even if it's only a CD image (approx
650MB), reading it
Hari Sekhon wrote:
I do
import zipfile
zip=zipfile.ZipFile('d:\somepath\cdimage.zip')
zip.namelist()
['someimage.iso']
then either of the two:
A) file('someimage.iso','w').write(zip.read('someimage.iso'))
or
B) content=zip.read('someimage.iso')
but both result in the same
Take a look at the pywin32 extension, which I believe has some lower
level memory allocation and file capabilities that might help you in
this situation. If I'm completely wrong, someone please tell me XD.
Of course, you could just make the read() a step process, reading, O
lets say 8192 bytes at
[EMAIL PROTECTED] wrote:
Take a look at the pywin32 extension, which I believe has some lower
level memory allocation and file capabilities that might help you in
this situation.
But then the solution would not be portable, which would be a shame
since the zlib module (on which ZipFile relies
Hari Sekhon [EMAIL PROTECTED] wrote:
import zipfile
zip=zipfile.ZipFile('d:\somepath\cdimage.zip')
zip.namelist()
['someimage.iso']
[ ... ]
B) content=zip.read('someimage.iso')
Traceback (most recent call last):
File stdin, line 1, in ?
File D:\u\Python24\lib\zipfile.py, line 357, in read
bruno at modulix [EMAIL PROTECTED] wrote:
http://mail.zope.org/pipermail/zope/2004-October/153882.html
MemoryError is raised by Python when an underlying (OS-level) allocation
fails.
(...)
Normally this would mean that you were out of even virtual memory
(swap), but it could also be a symptom of
Sion Arrowsmith wrote:
Hari Sekhon [EMAIL PROTECTED] wrote:
(snip)
The python zipfile module is obviously broken...
This isn't at all obvious to me.
zipfile.read() does not seem to take full advantage of zlib's
decompressobj's features. This could perhaps be improved (left as an
exercice to
The basic problem is that the zipfile interface only reads and writes
whole files, so it may perform poorly or fail on huge files. At one
time I implemented a patch to allow reading files in chunks. However I
believe that the current interface has too many problems to solve by
incremental
Roger Miller a écrit :
The basic problem is that the zipfile interface only reads and writes
whole files, so it may perform poorly or fail on huge files. At one
time I implemented a patch to allow reading files in chunks. However I
believe that the current interface has too many problems to
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