[Liblas-devel] DLL problem with Python bindings v 1.2.1

[Howard Butler]

I thought I copied jpeg12_osgeo.dll as part of the PyPI build.  I'll  
reverify next week and rebuild if necessary to include it.  You  
shouldn't need to get anything special to use the Python bindings from  
PyPI on windows (except if you want GDAL/reprojection support, which  
requires linkage of GDAL -- OSGeo4W is the way to go in that case).

Thanks for the report,

Howard


On Oct 9, 2009, at 4:11 PM, Jason.Woolard at noaa.gov wrote:

> Thanks for your response Mateusz. I think I got it working.
>
> I located the jpeg12_osgeo.dll in the bin dir of Frank's FWTools,  
> made a copy and placed it in the Python path and liblas now seems to  
> import ok.
>
> Not sure if that's the correct way to fix my problem but it seems to  
> work.
>
> Thanks again.
>
> ----- Original Message -----
> From: Mateusz Loskot <mateusz at loskot.net>
> Date: Friday, October 9, 2009 4:19 pm
> Subject: Re: [Liblas-devel] DLL problem with Python bindings v 1.2.1
> To: Jason Woolard <Jason.Woolard at noaa.gov>
> Cc: liblas-devel at lists.osgeo.org
>
>
>> Jason Woolard wrote:
>>> Just tried to get v 1.2.1 (Downloaded from PyPi)  up and running on
>>> Windows XP and I'm getting a DLL error:
>>>
>>>>>> import liblas
>>>
>>> Traceback (most recent call last):
>>> File "<pyshell#0>", line 1, in <module>
>>>   import liblas
>>> File "C:\pythonxy\python\Lib\site-packages\liblas\__init__.py",
>> line 1,
>>> in <module>
>>>   from core import *
>>> File "C:\pythonxy\python\Lib\site-packages\liblas\core.py", line  
>>> 118,
>>> in <module>
>>>   las = ctypes.CDLL(lib_name)
>>> File "C:\pythonxy\python\lib\ctypes\__init__.py", line 348, in  
>>> __init__
>>>   self._handle = _dlopen(self._name, mode)
>>> WindowsError: [Error 126] The specified module could not be found
>>>
>>> When launching from the cmd shell it looks like the dll that can't  
>>> be
>>> located is jpeg12_osgeo.dll.
>>>
>>> I had a similar problem with an earlier version caused by an old
>>> libtiff.dll but that seems to not be the case here.
>>>
>>> Any ideas?
>>
>> Hi Jason,
>>
>> From what you're writing I assume you have OSGeo4W package installed.
>> First, check if you have jpeg12_osgeo.dll installed in OSGeo4W  
>> location.
>> Assuming it is on C: drive, the DLL probably is inin C:\OSGeo4W\bin
>>
>> Now, try to add C:\OSGeo4W\bin to PATH environment variable, open
>> console and issue this command:
>>
>> C:\> set PATH=C:\OSGeo4W\bin;%PATH%
>> C:\>python
>>>>>> import liblas
>>
>> Does it work?
>>
>> Best regards,
>> -- 
>> Mateusz Loskot,
>> Charter Member of OSGeo,
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