Buildout fails: SyntaxError: invalid syntax (assuming newer Python)

[jean]

The latest git commit in my clone is ef2b733

$ python -V
Python 2.6.6 
$ python bootstrap.py 
$ ./bin/buildout -c local.cfg -v

This fails as follows:

virtualenv172: Extracting package to /var/opt/python/buildout.python/parts/virtualenv172
Installing python-2.4-virtualenv.
Installing python-2.4.
python-2.4: Running '
/var/opt/python/buildout.python/bin/virtualenv-2.4 /var/opt/python/buildout.python/python-2.4
/var/opt/python/buildout.python/python-2.4/bin/easy_install -U collective.dist'
'import site' failed; use -v for traceback
Traceback (most recent call last):
  File "/var/opt/python/buildout.python/parts/virtualenv172/virtualenv.py", line 2429, in ?
    main()
  File "/var/opt/python/buildout.python/parts/virtualenv172/virtualenv.py", line 942, in main
    never_download=options.never_download)
  File "/var/opt/python/buildout.python/parts/virtualenv172/virtualenv.py", line 1043, in create_environment
    site_packages=site_packages, clear=clear))
  File "/var/opt/python/buildout.python/parts/virtualenv172/virtualenv.py", line 1192, in install_python
    import site
  File "/var/opt/python/buildout.python/parts/buildout/site.py", line 150
    with f:
         ^
SyntaxError: invalid syntax
/bin/sh: line 2: /var/opt/python/buildout.python/python-2.4/bin/easy_install: No such file or directory
python-2.4: Non zero exit code (127) while running command.
While:
  Installing python-2.4.
Error: Non zero exit code (127) while running command.

Here is local.cfg:

[buildout]
extends = buildout.cfg

parts =
    ${buildout:base-parts}
    ${buildout:readline-parts}
    ${buildout:libjpeg-parts}
    ${buildout:python24-parts}
#   ${buildout:python25-parts}
    ${buildout:python26-parts}
#   ${buildout:python27-parts}
#   ${buildout:python32-parts}
#   ${buildout:python33-parts}
    ${buildout:links-parts}

[install-links]
prefix = /var/opt/python

From buildout output:
Detected these platforms: linux2-centos-final, linux2-centos-6.3, default

[fschulze]

Tracking this in #23 now.