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Problem!!

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  Problem!! amir chaouki <chaouki.amir@gmail.com> - 2011-07-03 16:41 -0700
    Re: Problem!! Irmen de Jong <irmen.NOSPAM@xs4all.nl> - 2011-07-04 01:47 +0200
      Re: Problem!! TheSaint <nobody@nowhere.net.no> - 2011-07-04 15:16 +0800
        Re: Problem!! Gregory Ewing <greg.ewing@canterbury.ac.nz> - 2011-07-04 20:48 +1200
    Re: Problem!! rantingrick <rantingrick@gmail.com> - 2011-07-03 16:54 -0700
    Re: Problem!! Chris Angelico <rosuav@gmail.com> - 2011-07-04 09:54 +1000
      Re: Problem!! amir chaouki <chaouki.amir@gmail.com> - 2011-07-03 16:58 -0700
        Re: Problem!! Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2011-07-05 09:30 +1000
        Re: Problem!! Nobody <nobody@nowhere.com> - 2011-07-05 09:14 +0100
    Re: Problem!! Ben Finney <ben+python@benfinney.id.au> - 2011-07-04 10:12 +1000
    Re: Problem!! Grant Edwards <invalid@invalid.invalid> - 2011-07-04 00:34 +0000
      Re: Problem!! milosh zorica <miloshzorica@gmail.com> - 2011-07-03 21:57 -0300

#8744 — Problem!!

i have written code on linux for parsing text files and it works great
but when i try to run it on windows it goes crazy, do you have any
idea???

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#8745

On 4-7-2011 1:41, amir chaouki wrote:
> i have written code on linux for parsing text files and it works great
> but when i try to run it on windows it goes crazy, do you have any
> idea???

No, I misplaced my crystal ball.

Irmen


P.S.  http://www.catb.org/~esr/faqs/smart-questions.html

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#8756

Irmen de Jong wrote:

> No, I misplaced my crystal ball.

I'm waiting mine, brand new in HD :D, with remote control :D :D

-- 
goto /dev/null

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#8763

TheSaint wrote:

> On 4-7-2011 1:41, amir chaouki wrote:
> 
>> No, I misplaced my crystal ball.
> 
> I'm waiting mine, brand new in HD :D, with remote control :D :D

The new digital models are great. But there's a
distressing tendency for visions to come with
DRM protection these days, so you can only share
them with at most 5 other users. :-(

-- 
Greg

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#8746

On Jul 3, 6:41 pm, amir chaouki <chaouki.a...@gmail.com> wrote:
> i have written code on linux for parsing text files and it works great
> but when i try to run it on windows it goes crazy, do you have any
> idea???

psst: you should show us the code first. :)

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#8747

On Mon, Jul 4, 2011 at 9:41 AM, amir chaouki <chaouki.amir@gmail.com> wrote:
> i have written code on linux for parsing text files and it works great
> but when i try to run it on windows it goes crazy, do you have any
> idea???

If you share your code, we may be able to help. Alternatively, here's
a few differences to look at:

1) Filenames - if you have a literal for your file name,
"/home/foobar/file" will work, but "c:\path\newfile.txt" won't -
backslash is a special character. Make it a raw string:
r"c:\path\newfile.txt" - that will work.

2) End of line characters. If you divide the contents of the file on
the "\n" character, and then try to work with the end of each line,
you may find that the string has a "\r" character at the end.

3) What Irmen de Jong said. :)

Chris Angelico

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#8748

the problem is when i use the seek function on windows it gives me
false results other then the results on *ux. the file that i work with
are very large about 10mb.

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#8801

amir chaouki wrote:

> the problem is when i use the seek function on windows it gives me
> false results 

What do you mean "false results"? What does this even mean?

Please show us:

* what you do
* what result you expect
* what result you actually get



-- 
Steven

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#8815

On Sun, 03 Jul 2011 16:58:24 -0700, amir chaouki wrote:

> the problem is when i use the seek function on windows it gives me
> false results other then the results on *ux. the file that i work with
> are very large about 10mb.

This is probably an issue with how the underlying C functions behave on
Windows, related to the CRLF<->LF conversions when a file is opened in
text mode.

The Python library documention for the .seek() method says:

> If the file is opened in text mode (without 'b'), only offsets returned
> by tell() are legal. Use of other offsets causes undefined behavior.

IOW, you can't use computed offsets with files opened in text mode
(although in practice this will work for platforms other than Windows). If
you want to use computed offsets, open the file in binary mode and strip
the trailing CRs yourself.

And 10MB isn't "very large"; it's not even "large". You normally only
start running into problems with files which are 2GiB (2,147,483,648
bytes) or more (i.e. if you can't fit the size into a signed 32-bit
integer).

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#8749

amir chaouki <chaouki.amir@gmail.com> writes:

> i have written code on linux for parsing text files and it works great
> but when i try to run it on windows it goes crazy, do you have any
> idea???

Please compose a new message, with a descriptive ‘Subject’ field,
example code that we can run, and your expectations for what the code
should do.

-- 
 \          “In general my children refuse to eat anything that hasn't |
  `\                              danced on television.” —Erma Bombeck |
_o__)                                                                  |
Ben Finney

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#8750

On 2011-07-03, amir chaouki <chaouki.amir@gmail.com> wrote:

> i have written code on linux for parsing text files and it works great
> but when i try to run it on windows it goes crazy, do you have any
> idea???

Yes.

-- 
Grant Edwards               grant.b.edwards        Yow! LOOK!!  Sullen
                                  at               American teens wearing
                              gmail.com            MADRAS shorts and "Flock of
                                                   Seagulls" HAIRCUTS!

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#8751

filenames and the crlf / eof thing come to my mind first

linux and windows handle files all different



On Sun, Jul 3, 2011 at 9:34 PM, Grant Edwards <invalid@invalid.invalid> wrote:
> On 2011-07-03, amir chaouki <chaouki.amir@gmail.com> wrote:
>
>> i have written code on linux for parsing text files and it works great
>> but when i try to run it on windows it goes crazy, do you have any
>> idea???
>
> Yes.
>
> --
> Grant Edwards               grant.b.edwards        Yow! LOOK!!  Sullen
>                                  at               American teens wearing
>                              gmail.com            MADRAS shorts and "Flock of
>                                                   Seagulls" HAIRCUTS!
> --
> http://mail.python.org/mailman/listinfo/python-list
>



-- 
Milosh Zorica
http://www.linkedin.com/in/miloshzorica | www.coroflot.com/miloshz

http://tangoinabox.co.uk
Tango in a Box - Online Media Production, the Tango Principles Applied -
Born in Argentina, Growing up Globally

+1 310 601 4396 | +44 20 8144 5294 | +54 9 11 3515 7187

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