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That's interesting. Today I get the same problem Casper reported.
Yesterday I didn't; likely because I'd been running from a command
shell several days old and it didn't have my current full system
path in it.<br>
<br>
I eventually tracked it down to a certain dll in PATH, outside the
osgeo4w tree: libeay32.dll. It's part of OpenSSL. Moving that
external file elsewhere enabled python to carry on as normal. <br>
<br>
<br>
<pre class="moz-signature" cols="72">matt wilkie
--------------------------------------------
Geomatics Analyst
Information Management and Technology
Yukon Department of Environment
10 Burns Road * Whitehorse, Yukon * Y1A 4Y9
867-667-8133 Tel * 867-393-7003 Fax
<a class="moz-txt-link-freetext" href="http://environmentyukon.gov.yk.ca/geomatics/">http://environmentyukon.gov.yk.ca/geomatics/</a>
-------------------------------------------- </pre>
<br>
On 08-May-2012 10:21 AM, Matt Wilkie wrote:
<blockquote cite="mid:4FA9561C.2090605@gov.yk.ca" type="cite">
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Hi Casper,<br>
<br>
I think you'll need to start from as clean an environment as
possible and add items to path until things break again.<br>
For example, from a command shell (start > run > cmd.exe):<br>
<br>
{{{<br>
:: clear whole PATH<br>
set path=<br>
<br>
:: clear PYTHONPATH, PYTHONHOME<br>
set pythonpath=<br>
set pythonhome=<br>
<br>
:: set basic o4w environment<br>
cd /d c:\osgeo4w<br>
set osgeo4w_root=%cd%<br>
path=%osgeo4w_root%\bin<br>
}}}<br>
<br>
Now run python and import gdal. <br>
<br>
If it works, from the same command shell run each bat in
"osgeo4w\etc\ini" and test the python import again until something
fails.<br>
<br>
If it doesn't work, something is wrong with the current o4w
package ecosystem and we'll try and dig it out.<br>
<br>
If you get through all the ini bat's without error, then the
problem lies somewhere in the host Windows environment. Likely
culprits include things like other python directories or .dll's in
PATH, PYTHONPATH or PYTHONHOME (not necessarily gdal dll's).<br>
<br>
let us know how you make out,<br>
<br>
<br>
<pre class="moz-signature" cols="72">matt wilkie
--------------------------------------------
Geomatics Analyst
Information Management and Technology
Yukon Department of Environment
10 Burns Road * Whitehorse, Yukon * Y1A 4Y9
867-667-8133 Tel * 867-393-7003 Fax
<a moz-do-not-send="true" class="moz-txt-link-freetext" href="http://environmentyukon.gov.yk.ca/geomatics/">http://environmentyukon.gov.yk.ca/geomatics/</a>
-------------------------------------------- </pre>
<br>
On 07-May-2012 11:40 PM, Casper Børgesen (CABO) wrote:
<blockquote
cite="mid:BCF6B63AE0B25941A7F56567B58A2805AA88C5@allkexa1.NIRAS.INT"
type="cite">
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<div class="WordSection1">
<p class="MsoNormal">Hi! <o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span lang="EN-US">I am new to the GDAL
world and I’m struggling with installing OSGeo4W to a
working state.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">I have downloaded and
installed the latest edition OSGeo4W. The install goes
smoothly. I open the OSGeo4W Command shell and enter
Python. I have seen that I can test the basic Python/GDAL
binding(?) by entering<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">>>> from
osgeo import gdal<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">This results in the
following error:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Courier
New";mso-fareast-language:DA" lang="EN-US">Traceback
(most recent call last):<br>
File "<stdin>", line 1, in <module><br>
File
"C:\OSGeo4W\apps\Python27\lib\site-packages\osgeo\__init__.py",
line 21,<br>
in <module><br>
_gdal = swig_import_helper()<br>
File
"C:\OSGeo4W\apps\Python27\lib\site-packages\osgeo\__init__.py",
line 17,<br>
in swig_import_helper<br>
_mod = imp.load_module('_gdal', fp, pathname,
description)<br>
ImportError: DLL load failed: The operating system cannot
run %1.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">I have read that this
error might indicate that the installed python/gdal
libraries are incompatible, but I’m wondering if my
OSGeo4W installation is obstructed by another
installation? The following three lines are added to my
path by the OSGeo4W Command shell:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<pre><span class="pln"><span lang="EN-US">C</span></span><span class="pun"><span lang="EN-US">:\</span></span><span class="typ"><span lang="EN-US">OSGeo4W</span></span><span class="pun"><span lang="EN-US">\</span></span><span class="pln"><span lang="EN-US">bin</span></span><span lang="EN-US">
<span class="pln">C</span><span class="pun">:\</span><span class="typ">OSGeo4W</span><span class="pun">\\</span><span class="pln">apps</span><span class="pun">\</span><span class="pln">msys</span><span class="pun">\</span><span class="pln">bin</span>
<span class="pln">C</span><span class="pun">:\</span><span class="typ">OSGeo4W</span><span class="pun">\\</span><span class="pln">apps</span><span class="pun">\</span><span class="typ">Python27</span><span class="pun">\</span><span class="typ">Scripts</span><o:p></o:p></span></pre>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">I have searched
through my system looking for gdal*.dll, but I have found
none located within any of the folders in my PATH.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">What can I do to
troubleshoot this problem?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Regards, Casper<o:p></o:p></span></p>
</div>
</blockquote>
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