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<font face="Georgia">Aleksey, The registry script will only make
changes if it does not find a key for the major version of python in
the current environment settings (2.4, 2.5, etc) . Meaning, it's safe
and won't mangle your existing install, but neither will it make o4w
python generally available. What follows are three approaches you might
try. I've use the first two with success, </font><font face="Georgia">no
guarantees they'll work for anyone else, </font><font face="Georgia">the
3rd is theortical. <br>
</font>
<h3><font face="Georgia">== Parallel ArcGIS and Osgeo4W python
installs == </font></h3>
<font face="Georgia">You can switch the default system python of the
same major version, python 2.5 for example, between the arcgis and o4w
by creating a registry file for each and delete/import at need. For
example:<br>
<br>
1. store existing py registry settings, open CMD shell (must be
admin-level shell on win7 and vista) and:<br>
</font>
<blockquote><tt><small>regedit /e arcgis-python-registry-hklm.txt
"HKEY_LOCAL_MACHINE\Software\Python"</small></tt><br>
<tt><small>regedit /e arcgis-python-registry-hkcu.txt
"HKEY_CURRENT_USERS\Software\Python"</small></tt><br>
</blockquote>
<font face="Georgia"><small><big>2. Only one of the files will be
created. Edit it and put a minus symbol in front of each [...] block,
and save as "</big></small></font><i><b><small><big><tt>remove_</tt></big></small></b></i><tt><small>arcgis-python-registry-hkcu.txt"</small></tt><font
face="Georgia"><small><big>:<br>
</big></small></font>
<blockquote><small><small><big><tt><font color="#cc0000"><b>-</b></font>[HKEY_CURRENT_USER\Software\Python]</tt></big></small></small><br>
</blockquote>
<font face="Georgia">3. Delete the current python registry by importing
the remove_*.txt.<br>
</font>
<blockquote><small><small><tt>regedit
remove_arcgis-python-registry-hkcu.txt</tt></small></small><br>
</blockquote>
<font face="Georgia">4. Open an o4w command shell and run
register-python.py. Repeat #1 & #2 to save o4w registration and
create removal version:<br>
</font>
<blockquote><small><small><tt>regedit /e o4w-python-registry-hklm.txt
"HKEY_LOCAL_MACHINE\Software\Python"</tt><br>
<tt>regedit /e o4w-python-registry-hkcu.txt
"HKEY_CURRENT_USERS\Software\Python"</tt></small></small><br>
</blockquote>
<font face="Georgia">Now you are free to run whatever binary installers
you need. Switch between the installs by a) import removal
registry.txt, b) import wanted registry.txt<br>
</font>
<h3><font face="Georgia">== Shared ArcGIS and Osgeo4W python install ==</font></h3>
<font face="Georgia">1. Uninstall existing arcgis python (or
de-register as above).</font><br>
<font face="Georgia">2. Open an o4w command shell and run
register-python.py<br>
3. Install pywin32 for corresponding python (*win32-py2.5.exe at the
moment)<br>
3. Put "arcgisscripting.py"[1] in "</font><small><tt>%pythonhome%\Lib\site-packages</tt></small><font
face="Georgia">"<br>
<br>
<small><small>[1] <a
href="http://www.yukongis.ca/@api/deki/files/12/=arcgisscripting.py">http://www.yukongis.ca/@api/deki/files/12/=arcgisscripting.py</a></small></small><br>
<br>
</font>
<h3><font face="Georgia">== Upgrade ArcGIS to py2.6, leave O4W py2.5==</font></h3>
<font face="Georgia">One method which might work is to uninstall the
regular system/arcgis python and upgrade it to 2.6. Then run the
register-python.py from an o4w command shell. This will make both
versions available to standard python binary installers. I believe the
recipe here, <small><a
href="http://www.yukongis.ca/How_To/UpgradingPython">http://www.yukongis.ca/How_To/UpgradingPython</a></small>,
will work for py2.6+arcgis9.3 but have not personally tried it.<br>
</font><br>
<font face="Georgia">I believe ArcGIS 10 embeds python 2.6 into it's
own install tree and doesn't make it available system wide; we'll see.</font><br>
<br>
<font face="Georgia">cheers,</font><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 07/05/2010 11:08 AM, Aleksey Naumov wrote:
<blockquote
cite="mid:j2z1fc68841005071108rcdda9a4ay3155dec93e378eb9@mail.gmail.com"
type="cite">Hi Matt,<br>
<br>
Thank you for your help. I noticed that you created a script to record
python in registry, but I think I might have to try it as the last
resort. I already have Python 2.5 (a regular version, not from
OSGeo4W), and I would have to remove that before attempting to run the
registry script, correct? I am hesitant to remove the "normal" Python
2.5 since it is used for other things, including Arc geoprocessing
scripts.<br>
<br>
Meanwhile, I was able to install the xlrd and SQLAlchemy packages from
downloaded sources with "python setup.py install" from inside the
OSGeo4W shell; that seemed to work. Tried to do the same for IPython
(0.10) and got the following error upon install:<br>
<div style="margin-left: 40px;">"The procedure entry point
?PyWinGlobals_Ensure@@YAXXZ could not be located in the dynamic link
library pywintypes25.dll"<br>
</div>
The same error pops up when trying "import IPython" or "import
win32process". This looks like a win32 extension problem, or is it?
Anyway, I reran the OSGeo4W setup to reinstall python-win32 (2.12-1),
but that did not help.<br>
<br>
Is there any way to move forward without resorting to removing the
"normal" Python 2.5? I guess if I did that I should be able to register
OSGeo4W's python with your script and then install IPython via
executable or via easy_install (for which again I'd need to first
install setuptools from an executable)?<br>
<br>
In general, what is the best way to install additional python packages
in OSGeo4W? Should I be using "apt" or "setup" (noticed both under
Commandline Utilities in the OSGeo4W setup program)? Does OSGeo4W
provide it's own setuptools?<br>
<br>
Thank you,<br>
Aleksey<br>
</blockquote>
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