Thanks for the follow up.

I had included the hive in one of my many variations in trying to get it to 
work (it defaults to "LocalMachine" according to the docs, so I assumed that I 
wouldn't need to set it explicitly).

According to regedit, the path is correct: 
HKEY_LOCAL_MACHINE\SOFTWARE\Python\PythonCore\2.7\InstallPath. 

I've now tested this on two 64bit machines and both fail with the same error. I 
also tried it with a nightly build and the error message was a little different:

Registry Path Not Found! - 
key='SOFTWARE\Python\PythonCore\2.7\InstallPath\';hive='Microsoft.Win32.RegistryHive[]';

This message concerns me a bit.. Do I somehow explicitly have to set the hive 
to be 64bit?

Thanks again,
Demian

-----Original Message-----
From: Ryan Boggs [mailto:rmbo...@gmail.com] 
Sent: April-04-12 11:31 AM
To: Demian Brecht
Cc: nant-users@lists.sourceforge.net
Subject: Re: [NAnt-users] FW: readregistry issue

I should note that I tested on a Win32 machine.  I am not sure if the reg path 
is different on a Win64 system for Python.

Thanks,
Ryan

On Wed, Apr 4, 2012 at 11:29 AM, Ryan Boggs <rmbo...@gmail.com> wrote:
> I'm not sure where the "3D" prefixes came from in your original 
> posting but this is working for me (just tested):
> <readregistry property="Python.Dir"
> key="SOFTWARE\Python\PythonCore\2.7\InstallPath\" hive="LocalMachine"
> />
>
> I am hoping that the above line isn't mangled in the email.  Don't 
> forget to include the hive in <readregistry>
>
> Thanks,
> Ryan
>
> On Wed, Apr 4, 2012 at 11:22 AM, Demian Brecht <dbre...@popcap.com> wrote:
>> Sorry, should have also mentioned that the task call is:
>>
>> <readregistry verbose="true" 
>> key="SOFTWARE\Python\PythonCore\2.7\InstallPath\" 
>> property="installPath" />
>>
>> -----Original Message-----
>> From: Demian Brecht
>> Sent: April-04-12 11:17 AM
>> To: 'nant-users@lists.sourceforge.net'
>> Subject: [NAnt-users] readregistry issue
>>
>> I'm sure that there's something silly that I'm missing here..
>>
>> I'm trying to query the registry (Windows 7 64bit) to get my Python install 
>> path. For some reason, I'm getting:
>>
>> Registry Path Not Found! - 
>> key=3D'SOFTWARE\Python\PythonCore\2.7\InstallPath\';hive=3D'LocalMachine'
>>
>> However, if I replace my key with the sample in the documentation, all works 
>> fine. I've rebooted since installing Python (not sure whether or not that 
>> makes a difference). What am I missing here?
>>
>> Thanks in advance,
>> Demian
>>
>>
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