help with file path exceeding 255 characters

[yguan08]

I have trouble of obtaining the file size of a file because the
fullpath exceeds 255 characters. I get this message with
os.path.getsize (fullpath).

fullpath = r"\\LOSSSFS002\ NWE_TECHNICAL\0 5. UK\Schiehallion (204_25a)
\Amos&Burke_P55 9\07. Technical (Subsurface)\06 . Well Planning\Amos
\Daily Reports\Wirelin e\final_204_25a _8z\204_25a_8z\ Run_1A
\HRLA_SP_DSI_PE X_HNGS_ECRD\ANC ILLARY\Amos_204 _25a-8Z_GR_to_surfac e_3-
Mar-2008_DSI_HRLA_T LD_MCFL_047PUC. las"

fsize = os.path.getsize (fullpath)
WindowsError: [Error 206] The filename or extension is too long:

The same thing with os.stat(fullpat h).

I tried using the relative path, but it does not work with the message
fname not found.

dir = os.path.dirname (fullpath)
fname = os.path.basenam e(fullpath)
os.chdir(dir)
filesize = os.path.getsize (fname)

Is there a walk around of this?

[Arnaud Delobelle]

yg*****@gmail.c om writes:

I have trouble of obtaining the file size of a file because the
fullpath exceeds 255 characters. I get this message with
os.path.getsize (fullpath).

fullpath = r"\\LOSSSFS002\ NWE_TECHNICAL\0 5. UK\Schiehallion (204_25a)
\Amos&Burke_P55 9\07. Technical (Subsurface)\06 . Well Planning\Amos
\Daily Reports\Wirelin e\final_204_25a _8z\204_25a_8z\ Run_1A
\HRLA_SP_DSI_PE X_HNGS_ECRD\ANC ILLARY\Amos_204 _25a-8Z_GR_to_surfac e_3-
Mar-2008_DSI_HRLA_T LD_MCFL_047PUC. las"

fsize = os.path.getsize (fullpath)
WindowsError: [Error 206] The filename or extension is too long:

The same thing with os.stat(fullpat h).

I tried using the relative path, but it does not work with the message
fname not found.

dir = os.path.dirname (fullpath)
fname = os.path.basenam e(fullpath)
os.chdir(dir)
filesize = os.path.getsize (fname)

Is there a walk around of this?

Disclaimer: I am not a Windows user

Might this help? http://forum.altap.cz/viewtopic.php?p=2353

Alternately, use a better OS :-)

--
Arnaud

[yguan08]

On May 13, 3:49*pm, Arnaud Delobelle <arno...@google mail.comwrote:

ygua...@gmail.c om writes:

I have trouble of obtaining the file size of a file because the
fullpath exceeds 255 characters. I get this message with
os.path.getsize (fullpath).

fullpath = r"\\LOSSSFS002\ NWE_TECHNICAL\0 5. UK\Schiehallion (204_25a)
\Amos&Burke_P55 9\07. Technical (Subsurface)\06 . Well Planning\Amos
\Daily Reports\Wirelin e\final_204_25a _8z\204_25a_8z\ Run_1A
\HRLA_SP_DSI_PE X_HNGS_ECRD\ANC ILLARY\Amos_204 _25a-8Z_GR_to_surfac e_3-
Mar-2008_DSI_HRLA_T LD_MCFL_047PUC. las"

fsize = os.path.getsize (fullpath)

WindowsError: [Error 206] The filename or extension is too long:

The same thing with os.stat(fullpat h).

I tried using the relative path, but it does not work with the message
fname not found.

dir = os.path.dirname (fullpath)
fname = os.path.basenam e(fullpath)
os.chdir(dir)
filesize = os.path.getsize (fname)

Is there a walk around of this?

Disclaimer: I am not a Windows user

Might this help? *http://forum.altap.cz/viewtopic.php?p=2353

Alternately, use a better OS :-)

--
Arnaud- Hide quoted text -

- Show quoted text -

I tried, but still the same error:

WindowsError: [Error 206] The filename or extension is too long: '\\\\?
\\UNC\\LOSSSFS0 02\\NWE_TECHNIC AL\\05. UK\\Schiehallio n (204_25a)\
\Amos&Burke_P55 9\\07. Technical (Subsurface)\\0 6. Well Planning\\Amos\
\Daily Reports\\Wireli ne\\final_204_2 5a_8z\\204_25a_ 8z\\Run_1A\
\HRLA_SP_DSI_PE X_HNGS_ECRD\\AN CILLARY\\Amos_2 04_25a-8Z_GR_to_surfac e_3-
Mar-2008_DSI_HRLA_T LD_MCFL_047PUC. las'

[John Machin]

yg*****@gmail.c om wrote:

I have trouble of obtaining the file size of a file because the
fullpath exceeds 255 characters. I get this message with
os.path.getsize (fullpath).

fullpath = r"\\LOSSSFS002\ NWE_TECHNICAL\0 5. UK\Schiehallion (204_25a)
\Amos&Burke_P55 9\07. Technical (Subsurface)\06 . Well Planning\Amos
\Daily Reports\Wirelin e\final_204_25a _8z\204_25a_8z\ Run_1A
\HRLA_SP_DSI_PE X_HNGS_ECRD\ANC ILLARY\Amos_204 _25a-8Z_GR_to_surfac e_3-
Mar-2008_DSI_HRLA_T LD_MCFL_047PUC. las"

fsize = os.path.getsize (fullpath)
WindowsError: [Error 206] The filename or extension is too long:

The same thing with os.stat(fullpat h).

I tried using the relative path, but it does not work with the message
fname not found.

dir = os.path.dirname (fullpath)
fname = os.path.basenam e(fullpath)
os.chdir(dir)

I suspect that the cause of the problem here is that while *x OSes have
just one current working directory, Windows has one cwd per drive.

filesize = os.path.getsize (fname)

Is there a walk around of this?

At the DOS command level, you can do
subst x: very\long\path
and then refer to
x:filestem.ext
where x is any unused drive letter.

This seems to work:

>>import os
os.system('su bst x: c:\\junk')

0

>>f = open('x:foo.py' )
f.read()

"print 'hello'\n"

>>>

HTH,
John

[yguan08]

On May 13, 4:38*pm, John Machin <sjmac...@lexic on.netwrote:

ygua...@gmail.c om wrote:

I have trouble of obtaining the file size of a file because the
fullpath exceeds 255 characters. I get this message with
os.path.getsize (fullpath).

fullpath = r"\\LOSSSFS002\ NWE_TECHNICAL\0 5. UK\Schiehallion (204_25a)
\Amos&Burke_P55 9\07. Technical (Subsurface)\06 . Well Planning\Amos
\Daily Reports\Wirelin e\final_204_25a _8z\204_25a_8z\ Run_1A
\HRLA_SP_DSI_PE X_HNGS_ECRD\ANC ILLARY\Amos_204 _25a-8Z_GR_to_surfac e_3-
Mar-2008_DSI_HRLA_T LD_MCFL_047PUC. las"

fsize = os.path.getsize (fullpath)

WindowsError: [Error 206] The filename or extension is too long:

The same thing with os.stat(fullpat h).

I tried using the relative path, but it does not work with the message
fname not found.

dir = os.path.dirname (fullpath)
fname = os.path.basenam e(fullpath)
os.chdir(dir)

I suspect that the cause of the problem here is that while *x OSes have
just one current working directory, Windows has one cwd per drive.

filesize = os.path.getsize (fname)

Is there a walk around of this?

At the DOS command level, you can do
* * *subst x: very\long\path
and then refer to
* * *x:filestem.ext
where x is any unused drive letter.

This seems to work:

*>>import os
*>>os.system('s ubst x: c:\\junk')
0
*>>f = open('x:foo.py' )
*>>f.read()
"print 'hello'\n"
*>>>

HTH,
John- Hide quoted text -

- Show quoted text -

Good idea. But subst does not see to work with path that has spaces.
It gives "Incorrect number of parameters"

[John Machin]

yg*****@gmail.c om wrote:

On May 13, 4:38 pm, John Machin <sjmac...@lexic on.netwrote:

>ygua...@gmail. com wrote:

>>I have trouble of obtaining the file size of a file because the
fullpath exceeds 255 characters. I get this message with

At the DOS command level, you can do
subst x: very\long\path
and then refer to
x:filestem.ext
where x is any unused drive letter.

Good idea. But subst does not see to work with path that has spaces.
It gives "Incorrect number of parameters"

If any DOS command-line argument includes spaces, you need to quote it.

os.system(r'sub st x: "c:\my big fat path\rab oof\etc etc etc"')

[yguan08]

On May 13, 5:31*pm, John Machin <sjmac...@lexic on.netwrote:

ygua...@gmail.c om wrote:

On May 13, 4:38 pm, John Machin <sjmac...@lexic on.netwrote:

ygua...@gmail.c om wrote:
I have trouble of obtaining the file size of a file because the
fullpath exceeds 255 characters. I get this message with
At the DOS command level, you can do
* * *subst x: very\long\path
and then refer to
* * *x:filestem.ext
where x is any unused drive letter.

Good idea. But subst does not see to work with path that has spaces.
It gives "Incorrect number of parameters"

If any DOS command-line argument includes spaces, you need to quote it.

os.system(r'sub st x: "c:\my big fat path\rab oof\etc etc etc"')

Yes, it works now. I am getting more on windows after coming a long
way from Unix. Thanks a lot.

[Roger Upole]

<yg*****@gmail. comwrote in message
news:41******** *************** ***********@z72 g2000hsb.google groups.com...

>I have trouble of obtaining the file size of a file because the
fullpath exceeds 255 characters. I get this message with
os.path.getsize (fullpath).

fullpath = r"\\LOSSSFS002\ NWE_TECHNICAL\0 5. UK\Schiehallion (204_25a)
\Amos&Burke_P55 9\07. Technical (Subsurface)\06 . Well Planning\Amos
\Daily Reports\Wirelin e\final_204_25a _8z\204_25a_8z\ Run_1A
\HRLA_SP_DSI_PE X_HNGS_ECRD\ANC ILLARY\Amos_204 _25a-8Z_GR_to_surfac e_3-
Mar-2008_DSI_HRLA_T LD_MCFL_047PUC. las"

fsize = os.path.getsize (fullpath)
WindowsError: [Error 206] The filename or extension is too long:

The same thing with os.stat(fullpat h).

I tried using the relative path, but it does not work with the message
fname not found.

dir = os.path.dirname (fullpath)
fname = os.path.basenam e(fullpath)
os.chdir(dir)
filesize = os.path.getsize (fname)

Is there a walk around of this?

You need to use the '\\?\UNC\' prefix and specify the path
in unicode (Python 2.5 and up).

Roger

[Gabriel Genellina]

En Tue, 13 May 2008 18:06:13 -0300, <yg*****@gmail. comescribió:

On May 13, 3:49*pm, Arnaud Delobelle <arno...@google mail.comwrote:

>ygua...@gmail. com writes:

I have trouble of obtaining the file size of a file because the
fullpath exceeds 255 characters. I get this message with

WindowsError: [Error 206] The filename or extension is too long: '\\\\?
\\UNC\\LOSSSFS0 02\\NWE_TECHNIC AL\\05. UK\\Schiehallio n (204_25a)\
\Amos&Burke_P55 9\\07. Technical (Subsurface)\\0 6. Well Planning\\Amos\
\Daily Reports\\Wireli ne\\final_204_2 5a_8z\\204_25a_ 8z\\Run_1A\
\HRLA_SP_DSI_PE X_HNGS_ECRD\\AN CILLARY\\Amos_2 04_25a-8Z_GR_to_surfac e_3-
Mar-2008_DSI_HRLA_T LD_MCFL_047PUC. las'

In addition to starting with \\?\UNC\, the path has to be an Unicode
string, and already normalized (that is, it cannot contain . nor ..
components)

--
Gabriel Genellina