When I run the installer in
python-2.5c2-macosx2006-09-12.dmg, it continues until
the "GUI Applications" phase, during which it fails
saying "There were errors installing the software.
Please try installing again". (Which doesn't work.)

I noticed that at the same moment it does this,
Console.app's console.log window adds the following line:

2006-09-14 19:12:21.568 Installer[1884] Exception
raised during posting of notification.  Ignored. 
exception: Some files for PythonApplications-2.5 may
not have been written correctly. (code 1)

I've also determined that if I try installing again,
but this time click Customize on the Installation Type
screen, then uncheck "GUI Applications 2.1MB", the
installation proceeds successfully.

I'm running OS X 10.3.9 on PowerPC.

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Assigning to Anthony so he sees this.

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Assigning to Ronald so he sees this.

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BTW, neither 2.5b3 nor 2.5c1 have this problem with the
installer.

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I had some problems with pax(1) when I created the installer, and specifically 
with the "MacPython 2.5" folder in /Applications which should have a custom 
icon.

I'm going to rebuild the 2.5c2 installer tomorrow, but without a custom icon on 
the "MacPython 2.5" folder. Would you be available for testing? I have a 10.3.9 
box, but didn't have this problem when I tested the installer there (earlier this 
week). 

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Yes, I'll be available.

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I've uploaded a new installer to http://homagepages.mac.com/
ronaldoussoren, its the file python-2.5c2-macosx2006-09-17.dmg.

Could you please test if this fixes the installation problems for you? I'd really 
appricate if you could post the contents of the installer log if installation 
failed (in Installer.app use the menu File -> Show Log, then select 'Show 
Everything', save that file and add it to this bug).

This version has two minor changes w.r.t. the previous one:
1) the application subpackage won't try to install a custom icon on the 
MacPython 2.5 folder. After reading some pages on the interweb I'm starting 
to believe that installing a custom icon will require a postinstall script and 
that's not something I want to add at this point of the release cycle (if ever).
2) the fixsystempython subpackage won't abort the installation when the 
system python's Makefile was patched by someone else.

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Looking at http://homepage.mac.com/ronaldoussoren, I only
see the following files:

Universal mpkg/pyobjc-1.3.8a0-python2.4-macosx10.4.dmg
anthony/python-2.5b3-macosx2006-08-03.dmg
anthony/python-2.5c2-macosx2006-09-12.dmg
python-2.5c1-macosx2006-08-28.dmg

I'll download the 2.5c2 one and see if the MD5 is different
just in case. Are you sure you uploaded it?

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Arghhh, I uploaded the wrong file. The right one is there now.

MD5 (python-2.5c2-macosx2006-09-17.dmg) = 
2f4fb47cb881863c8fc47927dd716a2a

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The new installer appears to have worked perfectly. (I have
the installer log file if you still want it.)

Thanks very much. Python 2.5 is quite exciting!

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Thanks for testing this. I'm glad the new version of the installer works correctly.

The changes were commited on the release25-maint branch in revision 51902 
and to the trunk in revision 51903.