Re: Fw: [Zope] problem with the shapelib module.. help
Thanks a lot for replying... I still a newbie at this ...
in order for shapelib to read shapefile, you need a set of three files(.shp,
.shx, .dbf).
so, if I have to download this to a temp location into my computer filesystem,
could you show me how this is done?
- Original Message
From: Andreas Jung [EMAIL PROTECTED]
To: Allen Huang [EMAIL PROTECTED]; Zope zope@zope.org
Sent: Sunday, December 24, 2006 2:47:52 PM
Subject: Re: Fw: [Zope] problem with the shapelib module.. help
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1
- --On 23. Dezember 2006 22:27:29 -0800 Allen Huang [EMAIL PROTECTED] wrote:
2. but when I save the shapefiles (taiwan1.shp, taiwan1.shx, taiwan1.dbf)
into zope and call it using dtml it return the same error message.
import shapelib, dbflib
def readshp(filename):
shp = shapelib.ShapeFile(filename)
return shp.info()
and in zope
dtml-var expr=readshp(taiwan1.shp)
or
dtml-var expr=readshp('http://localhost/pytest/taiwan1.shp');
No idea what shapelib is doing but reading a file from the locale
filesystem as it seems to work from an external method is *different* from
a accessing
content that is stored within the ZODB. I really wonder why you think it
would work the same way? The hierarchical object storage of Zope looks
similar to a filesystem but it is not a filesystem and the Python APIs for
accessing filesystems don't apply. We have no idea what the ShapeFile
constructors expects as data. If it expects a filename of a file within the
filesystem then you must obtain the content of your data stored within the
ZODB, create a temporary file and call the constructor as you did within
your external method. Possibly the constructor accepts the data directly
as *string*..in this case this would make things a bit easier. But it is up
to *you* to check the Shapelib API and take appropriate action.
- -aj
-BEGIN PGP SIGNATURE-
Version: GnuPG v1.4.6 (Darwin)
iD8DBQFFjiKYCJIWIbr9KYwRAk0oAKCSyEo5ykswElgi9jFGWf89NthzmwCfRvEM
nSMyeIu/cK7NpecUlof2BR8=
=B0Mw
-END PGP SIGNATURE-
__
Do You Yahoo!?
Tired of spam? Yahoo! Mail has the best spam protection around
http://mail.yahoo.com ___
Zope maillist - Zope@zope.org
http://mail.zope.org/mailman/listinfo/zope
** No cross posts or HTML encoding! **
(Related lists -
http://mail.zope.org/mailman/listinfo/zope-announce
http://mail.zope.org/mailman/listinfo/zope-dev )
Re: Fw: [Zope] problem with the shapelib module.. help
Allen Huang wrote at 2006-12-23 22:27 -0800:
I've being trying different things for the pass day
1. I put the shapefile directly in the Extensions with the external method and
it work fine
import shapelib, dbflib
def readshp():
shp = shapelib.ShapeFile('taiwan1.shp')
This means, that ShapeFile is Zope unaware and will
interpret its argument as a filepath (maybe relative to the current working
directory).
The above will work when there is a 'taiwan1.shp' file in the
directory of the so called INSTANCE_HOME (which is Zope's usual
current working directory).
In an External Method (or other trusted code), you can use
Python's file operations to write files. E.g. you can create
'taivan1.shp' as follows:
f = open('taiwan1.shp', 'wb')
f.write(file_content)
f.close()
Be warned however, that Zope is a multithread application. Therefore,
it is dangerous to use fixed file names (one thread may overwrite
the file created in a different thread). You probably would want to
have the files created with functions you find in Python's tempfile
module.
In case the file you want to precess it a Zope File object f
(a file in the ZODB), then, you can access its data via
str(f.data) (and write this to a file on the file system).
In case, the file you want to precess is updated via a POST request,
it will be turned into a ZPublisher.HTTPRequest.FileUpload objects
which behaves like a Python file object (with some additional methods
and attributes). Especially, you can use f.read() to read its content.
--
Dieter
___
Zope maillist - Zope@zope.org
http://mail.zope.org/mailman/listinfo/zope
** No cross posts or HTML encoding! **
(Related lists -
http://mail.zope.org/mailman/listinfo/zope-announce
http://mail.zope.org/mailman/listinfo/zope-dev )
Re: [Zope] problem with the shapelib module.. help
Please stay on the mailing list. Readded ... Allen Huang wrote at 2006-12-22 19:47 -0800: ... is there something wrong with how I constructed it? It is still something wrong with the way you report problems. See below in my quoted message from yesterday. And be aware that we might get a bit angry when you do not read our messages carefully. - Original Message From: Dieter Maurer [EMAIL PROTECTED] To: Allen Huang [EMAIL PROTECTED] Cc: Zope zope@zope.org Sent: Saturday, December 23, 2006 3:52:53 AM Subject: Re: [Zope] problem with the shapelib module.. help Another tip for the future. When you report problems, you need to include full error information. Beside the Error Type and Error Value above, this also includes the traceback. You find all this information in the error_log object in Zope's Root Folder (Management Interface). -- Dieter ___ Zope maillist - Zope@zope.org http://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope-dev )
Fw: [Zope] problem with the shapelib module.. help
shapelib still didn't work for me.. help
I've being trying different things for the pass day
1. I put the shapefile directly in the Extensions with the external method and
it work fine
import shapelib, dbflib
def readshp():
shp = shapelib.ShapeFile('taiwan1.shp')
return shp.info()
and in zope
dtml-var expr=readshp()
2. but when I save the shapefiles (taiwan1.shp, taiwan1.shx, taiwan1.dbf) into
zope and call it using dtml it return the same error message.
import shapelib, dbflib
def readshp(filename):
shp = shapelib.ShapeFile(filename)
return shp.info()
and in zope
dtml-var expr=readshp(taiwan1.shp)
or
dtml-var expr=readshp('http://localhost/pytest/taiwan1.shp')
The error message are
1. in Run Zope in Console
Exception exceptions.AttributeError:ShapeFile instance has no
attribute 'thisown' in ignored
2. in web browser
Site Error
An error was encountered while publishing this resource.
Error Type: IOError
Error Value: new_ShapeFile failed
is there something wrong with how I constructed it? Do I need to do something
before hand?
3. in error_log
Traceback (innermost last):
Module ZPublisher.Publish, line 115, in publish
Module ZPublisher.mapply, line 88, in mapply
Module ZPublisher.Publish, line 41, in call_object
Module OFS.DTMLMethod, line 143, in __call__
- DTMLMethod at /testPython/test
- URL: http://localhost/testPython/test/manage_main
- Physical Path: /testPython/test
Module DocumentTemplate.DT_String, line 476, in __call__
Module DocumentTemplate.DT_Util, line 196, in eval
- __traceback_info__: readshp
Module string, line 1, in expression
Module Products.ExternalMethod.ExternalMethod, line 231, in __call__
- __traceback_info__: (('http://localhost/testPython/taiwan1.shp',), {},
None)
Module C:\web\ZopeInstance\Extensions\shapetools.py, line 4, in readshp
Module shapelib, line 44, in __init__
IOError: new_ShapeFile failed
- Forwarded Message
From: Dieter Maurer [EMAIL PROTECTED]
To: Allen Huang [EMAIL PROTECTED]
Cc: Zope zope@zope.org
Sent: Saturday, December 23, 2006 3:52:53 AM
Subject: Re: [Zope] problem with the shapelib module.. help
Allen Huang wrote at 2006-12-21 23:23 -0800:
I want to do some mapping application with zope.. but I have run into this
problem over and over..
in Run Zope in Console
Exception exceptions.AttributeError:ShapeFile instance has no attribute
'thisown' in ignored
Hmm. I doubt that you have really seen this text. There should be something
in between the in and the ignored. It is *vital* that you
are as precise as possible in your problem reports...
Python emits messages of the kind above in some (rare) situations,
e.g. when exceptions occur in destructors.
The exception above seems to have been raised in such a situation.
The missing thing betwenn in and ignored should tell us which situation
this was.
It tells you that something tries to access the attribute thisown
on a ShapeFile instance but this does not have the attribute.
in web browser
Site Error
An error was encountered while publishing this resource.
Error Type: IOError
Error Value: new_ShapeFile failed
Another tip for the future. When you report problems, you need
to include full error information. Beside the Error Type and
Error Value above, this also includes the traceback.
You find all this information in the error_log object in
Zope's Root Folder (Management Interface).
--
Dieter
__
Do You Yahoo!?
Tired of spam? Yahoo! Mail has the best spam protection around
http://mail.yahoo.com ___
Zope maillist - Zope@zope.org
http://mail.zope.org/mailman/listinfo/zope
** No cross posts or HTML encoding! **
(Related lists -
http://mail.zope.org/mailman/listinfo/zope-announce
http://mail.zope.org/mailman/listinfo/zope-dev )
Re: Fw: [Zope] problem with the shapelib module.. help
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1
- --On 23. Dezember 2006 22:27:29 -0800 Allen Huang [EMAIL PROTECTED] wrote:
2. but when I save the shapefiles (taiwan1.shp, taiwan1.shx, taiwan1.dbf)
into zope and call it using dtml it return the same error message.
import shapelib, dbflib
def readshp(filename):
shp = shapelib.ShapeFile(filename)
return shp.info()
and in zope
dtml-var expr=readshp(taiwan1.shp)
or
dtml-var expr=readshp('http://localhost/pytest/taiwan1.shp')
No idea what shapelib is doing but reading a file from the locale
filesystem as it seems to work from an external method is *different* from
a accessing
content that is stored within the ZODB. I really wonder why you think it
would work the same way? The hierarchical object storage of Zope looks
similar to a filesystem but it is not a filesystem and the Python APIs for
accessing filesystems don't apply. We have no idea what the ShapeFile
constructors expects as data. If it expects a filename of a file within the
filesystem then you must obtain the content of your data stored within the
ZODB, create a temporary file and call the constructor as you did within
your external method. Possibly the constructor accepts the data directly
as *string*..in this case this would make things a bit easier. But it is up
to *you* to check the Shapelib API and take appropriate action.
- -aj
-BEGIN PGP SIGNATURE-
Version: GnuPG v1.4.6 (Darwin)
iD8DBQFFjiKYCJIWIbr9KYwRAk0oAKCSyEo5ykswElgi9jFGWf89NthzmwCfRvEM
nSMyeIu/cK7NpecUlof2BR8=
=B0Mw
-END PGP SIGNATURE-
___
Zope maillist - Zope@zope.org
http://mail.zope.org/mailman/listinfo/zope
** No cross posts or HTML encoding! **
(Related lists -
http://mail.zope.org/mailman/listinfo/zope-announce
http://mail.zope.org/mailman/listinfo/zope-dev )
Re: [Zope] problem with the shapelib module.. help
I change some setting to my runzope.bat because I want zope to use
python2.4.4 instead of the build 2.3.5
Don't do that. If you need python2.4 then use newer Zope version that
uses 2.4 eg. Zope2.9, Zope2.10.
import shapelib, dbflib
def testShapeLib(self):
f1 = shapelib.ShapeFile('C:\\web\\ZopeInstance\\taipei.shp')
Is this working without Zope?
--
Maciej Wisniowski
___
Zope maillist - Zope@zope.org
http://mail.zope.org/mailman/listinfo/zope
** No cross posts or HTML encoding! **
(Related lists -
http://mail.zope.org/mailman/listinfo/zope-announce
http://mail.zope.org/mailman/listinfo/zope-dev )
Re: [Zope] problem with the shapelib module.. help
Allen Huang wrote at 2006-12-21 23:23 -0800: I want to do some mapping application with zope.. but I have run into this problem over and over.. in Run Zope in Console Exception exceptions.AttributeError:ShapeFile instance has no attribute 'thisown' in ignored Hmm. I doubt that you have really seen this text. There should be something in between the in and the ignored. It is *vital* that you are as precise as possible in your problem reports... Python emits messages of the kind above in some (rare) situations, e.g. when exceptions occur in destructors. The exception above seems to have been raised in such a situation. The missing thing betwenn in and ignored should tell us which situation this was. It tells you that something tries to access the attribute thisown on a ShapeFile instance but this does not have the attribute. in web browser Site Error An error was encountered while publishing this resource. Error Type: IOError Error Value: new_ShapeFile failed Another tip for the future. When you report problems, you need to include full error information. Beside the Error Type and Error Value above, this also includes the traceback. You find all this information in the error_log object in Zope's Root Folder (Management Interface). -- Dieter ___ Zope maillist - Zope@zope.org http://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope-dev )
[Zope] problem with the shapelib module.. help
I want to do some mapping application with zope.. but I have run into this
problem over and over..
in Run Zope in Console
Exception exceptions.AttributeError:ShapeFile instance has no attribute
'thisown' in ignored
in web browser
Site Error
An error was encountered while publishing this resource.
Error Type: IOError
Error Value: new_ShapeFile failed
I change some setting to my runzope.bat because I want zope to use python2.4.4
instead of the build 2.3.5 because I have install shapelib
module(pyshapelib-0.3.win32-py2.4) which is the module I want to use for the
import of my external methods. The runzope.bat looks like this:
@set PYTHON=C:\Python24\python.exe
@set ZOPE_HOME=C:\web\Zope\Zope
@set INSTANCE_HOME=C:\web\ZopeInstance
@set SOFTWARE_HOME=C:\web\Zope\Zope\lib\python
@set CONFIG_FILE=C:\web\ZopeInstance\etc\zope.conf
@set
PYTHONPATH=C:\Python24\Lib;%INSTANCE_HOME%\lib\python;%SOFTWARE_HOME%;%PYTHONPATH%
@set ZOPE_RUN=%SOFTWARE_HOME%\Zope2\Startup\run.py
%PYTHON% %ZOPE_RUN% -C %CONFIG_FILE% %1 %2 %3 %4 %5 %6 %7
I made a very short python external method to test the shapelib module
import shapelib, dbflib
def testShapeLib(self):
f1 = shapelib.ShapeFile('C:\\web\\ZopeInstance\\taipei.shp')
but all I get out of it is the above two errors
anyone have any idea what i'm do wrong with my settings or my code? any thought?
__
Do You Yahoo!?
Tired of spam? Yahoo! Mail has the best spam protection around
http://mail.yahoo.com ___
Zope maillist - Zope@zope.org
http://mail.zope.org/mailman/listinfo/zope
** No cross posts or HTML encoding! **
(Related lists -
http://mail.zope.org/mailman/listinfo/zope-announce
http://mail.zope.org/mailman/listinfo/zope-dev )
