Removed multi-python support

src/zc/buildout/buildout.py

@@ -113,8 +113,6 @@ _buildout_default_options = _annotate_section({
     'bin-directory': 'bin',
     'parts-directory': 'parts',
     'installed': '.installed.cfg',
-    'python': 'buildout',
-    'executable': sys.executable,
     'log-level': 'INFO',
     'log-format': '',
     }, 'DEFAULT_VALUE')

src/zc/buildout/buildout.txt

@@ -739,8 +739,6 @@ COMMAND_LINE_VALUE).
         COMPUTED_VALUE
     eggs-directory= eggs
         DEFAULT_VALUE
-    executable= ...
-        DEFAULT_VALUE
     installed= .installed.cfg
         DEFAULT_VALUE
     log-format=
@@ -751,8 +749,6 @@ COMMAND_LINE_VALUE).
         /sample-buildout/buildout.cfg
     parts-directory= parts
         DEFAULT_VALUE
-    python= buildout
-        DEFAULT_VALUE
     <BLANKLINE>
     [data-dir]
     path= foo bins
@@ -2209,7 +2205,6 @@ database is shown.
     develop-eggs-directory = /sample-buildout/develop-eggs
     directory = /sample-buildout
     eggs-directory = /sample-buildout/eggs
-    executable = /usr/local/bin/python2.3
     installed = /sample-buildout/.installed.cfg
     log-format =
     log-level = INFO
@@ -2217,7 +2212,6 @@ database is shown.
     offline = false
     parts =
     parts-directory = /sample-buildout/parts
-    python = buildout
     verbosity = 20
     <BLANKLINE>
 
@@ -2245,10 +2239,6 @@ eggs-directory
    *never* be modified.  This can be a relative path, which is
    interpreted relative to the directory option.
 
-executable
-   The Python executable used to run the buildout.  See the python
-   option below.
-
 installed
    The file path where information about the results of the previous
    buildout run is written.  This can be a relative path, which is
@@ -2268,16 +2258,6 @@ parts
 parts-directory
    A working directory that parts can used to store data.
 
-python
-   The name of a section containing information about the default
-   Python interpreter.  Recipes that need a installation
-   typically have options to tell them which Python installation to
-   use.  By convention, if a section-specific option isn't used, the
-   option is looked for in the buildout section.  The option must
-   point to a section with an executable option giving the path to a
-   Python executable.  By default, the buildout section defines the
-   default Python as the Python used to run the buildout.
-
 verbosity
    A log-level adjustment.  Typically, this is set via the -q and -v
    command-line options.

src/zc/buildout/easy_install.txt

@@ -53,10 +53,6 @@ index
    we'll just point to an empty directory on our link server.  This
    will make our examples run a little bit faster.
 
-executable
-   A path to a Python executable.  Distributions will be installed
-   using this executable and will be for the matching Python version.
-
 path
    A list of additional directories to search for locally-installed
    distributions.
@@ -547,7 +543,7 @@ from the demo egg:
     >>> scripts = zc.buildout.easy_install.scripts(
     ...     ['demo'], ws, sys.executable, bin)
 
-the four arguments we passed were:
+the three arguments we passed were:
 
 1. A sequence of distribution requirements.  These are of the same
    form as setuptools requirements.  Here we passed a single
@@ -555,8 +551,6 @@ the four arguments we passed were:
 
 2. A working set,
 
-3. The Python executable to use, and
-
 3. The destination directory.
 
 The bin directory now contains a generated script:
@@ -582,7 +576,7 @@ interpreter and without having to provide a '.py' suffix.
 The demo script run the entry point defined in the demo egg:
 
     >>> cat(bin, 'demo') # doctest: +NORMALIZE_WHITESPACE
-    #!/usr/local/bin/python2.4
+    #!/usr/local/bin/python2.7
     <BLANKLINE>
     import sys
     sys.path[0:0] = [
@@ -615,11 +609,11 @@ For example, we could have passed entry point information directly
 rather than passing a requirement:
 
     >>> scripts = zc.buildout.easy_install.scripts(
-    ...     [('demo', 'eggrecipedemo', 'main')],
-    ...     ws, sys.executable, bin)
+    ...     [('demo', 'eggrecipedemo', 'main')], ws,
+    ...     sys.executable, bin)
 
     >>> cat(bin, 'demo') # doctest: +NORMALIZE_WHITESPACE
-    #!/usr/local/bin/python2.4
+    #!/usr/local/bin/python2.7
     <BLANKLINE>
     import sys
     sys.path[0:0] = [
@@ -663,7 +657,7 @@ The py script simply runs the Python interactive interpreter with
 the path set:
 
     >>> cat(bin, 'py') # doctest: +NORMALIZE_WHITESPACE
-    #!/usr/local/bin/python2.4
+    #!/usr/local/bin/python2.7
     <BLANKLINE>
     import sys
     <BLANKLINE>
@@ -749,7 +743,7 @@ to be included in the a generated script:
     ...    extra_paths=[foo])
 
     >>> cat(bin, 'run') # doctest: +NORMALIZE_WHITESPACE
-    #!/usr/local/bin/python2.4
+    #!/usr/local/bin/python2.7
     <BLANKLINE>
     import sys
     sys.path[0:0] = [
@@ -775,7 +769,7 @@ parentheses in the call:
     ...    arguments='1, 2')
 
     >>> cat(bin, 'run') # doctest: +NORMALIZE_WHITESPACE
-    #!/usr/local/bin/python2.4
+    #!/usr/local/bin/python2.7
     import sys
     sys.path[0:0] = [
       '/sample-install/demo-0.3-py2.4.egg',
@@ -798,7 +792,7 @@ You can also pass script initialization code:
     ...    initialization='import os\nos.chdir("foo")')
 
     >>> cat(bin, 'run') # doctest: +NORMALIZE_WHITESPACE
-    #!/usr/local/bin/python2.4
+    #!/usr/local/bin/python2.7
     import sys
     sys.path[0:0] = [
       '/sample-install/demo-0.3-py2.4.egg',
@@ -838,7 +832,7 @@ to pass a common base directory of the scripts and eggs:
     ...    relative_paths=bo)
 
     >>> cat(bo, 'bin', 'run')
-    #!/usr/local/bin/python2.4
+    #!/usr/local/bin/python2.7
     <BLANKLINE>
     import os
     <BLANKLINE>
@@ -870,7 +864,7 @@ Of course, running the script works:
 We specified an interpreter and its paths are adjusted too:
 
     >>> cat(bo, 'bin', 'py')
-    #!/usr/local/bin/python2.4
+    #!/usr/local/bin/python2.7
     <BLANKLINE>
     import os
     <BLANKLINE>
@@ -950,10 +944,6 @@ index
    we'll just point to an empty directory on our link server.  This
    will make our examples run a little bit faster.
 
-executable
-   A path to a Python executable.  Distributions will be installed
-   using this executable and will be for the matching Python version.
-
 path
    A list of additional directories to search for locally-installed
    distributions.
@@ -1122,10 +1112,6 @@ build_ext
    A dictionary of options to be passed to the distutils build_ext
    command when building extensions.
 
-executable
-   A path to a Python executable.  Distributions will be installed
-   using this executable and will be for the matching Python version.
-
 We have a local directory containing the extdemo source:
 
     >>> ls(extdemo)

src/zc/buildout/testing.py

@@ -108,7 +108,7 @@ def system(command, input=''):
 def get(url):
     return urllib2.urlopen(url).read()
 
-def _runsetup(setup, executable, *args):
+def _runsetup(setup, *args):
     if os.path.isdir(setup):
         setup = os.path.join(setup, 'setup.py')
     args = list(args)
@@ -117,7 +117,7 @@ def _runsetup(setup, executable, *args):
     try:
         os.chdir(os.path.dirname(setup))
         zc.buildout.easy_install.call_subprocess(
-            [executable, setup] + args,
+            [sys.executable, setup] + args,
             env=dict(os.environ, PYTHONPATH=setuptools_location))
         if os.path.exists('build'):
             rmtree('build')
@@ -125,64 +125,15 @@ def _runsetup(setup, executable, *args):
         os.chdir(here)
 
 def sdist(setup, dest):
-    _runsetup(setup, sys.executable, 'sdist', '-d', dest, '--formats=zip')
-
-def bdist_egg(setup, executable, dest):
-    _runsetup(setup, executable, 'bdist_egg', '-d', dest)
-
-def find_python(version):
-    e = os.environ.get('PYTHON%s' % version)
-    if e is not None:
-        return e
-    if is_win32:
-        e = '\Python%s%s\python.exe' % tuple(version.split('.'))
-        if os.path.exists(e):
-            return e
+    _runsetup(setup, 'sdist', '-d', dest, '--formats=zip')
+
+def bdist_egg(setup, executable, dest=None):
+    # Backward compat:
+    if dest is None:
+        dest = executable
     else:
-        cmd = 'python%s -c "import sys; print sys.executable"' % version
-        p = subprocess.Popen(cmd,
-                             shell=True,
-                             stdin=subprocess.PIPE,
-                             stdout=subprocess.PIPE,
-                             stderr=subprocess.STDOUT,
-                             close_fds=MUST_CLOSE_FDS)
-        i, o = (p.stdin, p.stdout)
-        i.close()
-        e = o.read().strip()
-        o.close()
-        if os.path.exists(e):
-            return e
-        cmd = 'python -c "import sys; print \'%s.%s\' % sys.version_info[:2]"'
-        p = subprocess.Popen(cmd,
-                             shell=True,
-                             stdin=subprocess.PIPE,
-                             stdout=subprocess.PIPE,
-                             stderr=subprocess.STDOUT,
-                             close_fds=MUST_CLOSE_FDS)
-        i, o = (p.stdin, p.stdout)
-        i.close()
-        e = o.read().strip()
-        o.close()
-        if e == version:
-            cmd = 'python -c "import sys; print sys.executable"'
-            p = subprocess.Popen(cmd,
-                                shell=True,
-                                stdin=subprocess.PIPE,
-                                stdout=subprocess.PIPE,
-                                stderr=subprocess.STDOUT,
-                                close_fds=MUST_CLOSE_FDS)
-            i, o = (p.stdin, p.stdout)
-            i.close()
-            e = o.read().strip()
-            o.close()
-            if os.path.exists(e):
-                return e
-
-    raise ValueError(
-        "Couldn't figure out the executable for Python %(version)s.\n"
-        "Set the environment variable PYTHON%(version)s to the location\n"
-        "of the Python %(version)s executable before running the tests."
-        % {'version': version})
+        assert executable == sys.executable, (executable, sys.executable)
+    _runsetup(setup, 'bdist_egg', '-d', dest)
 
 def wait_until(label, func, *args, **kw):
     if 'timeout' in kw:

src/zc/buildout/testing.txt

@@ -109,26 +109,12 @@ number of names to the test namespace:
     setup argument is a directory, the thge setup.py file in that
     directory is used.
 
-``bdist_egg(setup, executable, dest)``
-    Create an egg by running the given setup file with the given
-    Python executable and placing the result in the given destination
+``bdist_egg(setup, dest)``
+    Create an egg by running the given setup file
+    and placing the result in the given destination
     directory.  If the setup argument is a directory, then the
     setup.py file in that directory is used.
 
-``find_python(version)``
-    Find a Python executable for the given version, where version is a
-    string like "2.4".
-
-    This function uses the following strategy to find a Python of the
-    given version:
-
-    - Look for an environment variable of the form PYTHON%(version)s.
-
-    - On windows, look for \Pythonm%(version)s\python
-
-    - on Unix, try running python%(version)s or just python to get the
-      executable
-
 ``zc.buildout.testing.buildoutTearDown(test)``
 ----------------------------------------------
 

src/zc/buildout/tests.py

@@ -22,7 +22,6 @@ import tempfile
 import unittest
 import zc.buildout.easy_install
 import zc.buildout.testing
-import zc.buildout.testselectingpython
 import zipfile
 
 os_path_sep = os.path.sep
@@ -499,55 +498,6 @@ Then try to install it again:
 
     """
 
-def make_sure__get_version_works_with_2_digit_python_versions():
-    """
-
-This is a test of an internal function used by higher-level machinery.
-
-We'll start by creating a faux 'python' that executable that prints a
-2-digit version. This is a bit of a pain to do portably. :(
-
-    >>> mkdir('demo')
-    >>> write('demo', 'setup.py',
-    ... '''
-    ... from setuptools import setup
-    ... setup(name='demo',
-    ...       entry_points = {'console_scripts': ['demo = demo:main']},
-    ...       )
-    ... ''')
-    >>> write('demo', 'demo.py',
-    ... '''
-    ... def main():
-    ...     print 'Python 2.5'
-    ... ''')
-
-    >>> write('buildout.cfg',
-    ... '''
-    ... [buildout]
-    ... develop = demo
-    ... parts =
-    ... ''')
-
-    >>> print system(join('bin', 'buildout')),
-    Develop: '/sample-buildout/demo'
-
-    >>> import zc.buildout.easy_install
-    >>> ws = zc.buildout.easy_install.working_set(
-    ...    ['demo'], sys.executable, ['develop-eggs'])
-    >>> bool(zc.buildout.easy_install.scripts(
-    ...      ['demo'], ws, sys.executable, 'bin'))
-    True
-
-    >>> print system(join('bin', 'demo')),
-    Python 2.5
-
-Now, finally, let's test _get_version:
-
-    >>> zc.buildout.easy_install._get_version(join('bin', 'demo'))
-    '2.5'
-
-    """
-
 def create_sections_on_command_line():
     """
     >>> write('buildout.cfg',
@@ -2655,6 +2605,7 @@ def increment_on_command_line():
 ######################################################################
 
 def create_sample_eggs(test, executable=sys.executable):
+    assert executable == sys.executable, (executable, sys.executable)
     write = test.globs['write']
     dest = test.globs['sample_eggs']
     tmp = tempfile.mkdtemp()
@@ -2680,7 +2631,7 @@ def create_sample_eggs(test, executable=sys.executable):
             "setup(name='other', zip_safe=False, version='1.0', "
             "py_modules=['eggrecipedemoneeded'])\n"
             )
-        zc.buildout.testing.bdist_egg(tmp, executable, dest)
+        zc.buildout.testing.bdist_egg(tmp, sys.executable, dest)
 
         os.remove(os.path.join(tmp, 'eggrecipedemoneeded.py'))
 
@@ -2701,7 +2652,7 @@ def create_sample_eggs(test, executable=sys.executable):
                      "['demo = eggrecipedemo:main']},"
                 " zip_safe=True, version='0.%s%s')\n" % (i, c1)
                 )
-            zc.buildout.testing.bdist_egg(tmp, executable, dest)
+            zc.buildout.testing.bdist_egg(tmp, dest)
 
         write(tmp, 'eggrecipebigdemo.py', 'import eggrecipedemo')
         write(
@@ -2712,7 +2663,7 @@ def create_sample_eggs(test, executable=sys.executable):
             " py_modules=['eggrecipebigdemo'], "
             " zip_safe=True, version='0.1')\n"
             )
-        zc.buildout.testing.bdist_egg(tmp, executable, dest)
+        zc.buildout.testing.bdist_egg(tmp, sys.executable, dest)
 
     finally:
         shutil.rmtree(tmp)
@@ -2858,7 +2809,7 @@ def bootstrapSetup(test):
 normalize_bang = (
     re.compile(re.escape('#!'+
                          zc.buildout.easy_install._safe_arg(sys.executable))),
-    '#!/usr/local/bin/python2.4',
+    '#!/usr/local/bin/python2.7',
     )
 
 def test_suite():
@@ -2874,8 +2825,6 @@ def test_suite():
                zc.buildout.testing.normalize_egg_py,
                (re.compile('__buildout_signature__ = recipes-\S+'),
                 '__buildout_signature__ = recipes-SSSSSSSSSSS'),
-               (re.compile('executable = [\S ]+python\S*', re.I),
-                'executable = python'),
                (re.compile('[-d]  setuptools-\S+[.]egg'), 'setuptools.egg'),
                (re.compile('zc.buildout(-\S+)?[.]egg(-link)?'),
                 'zc.buildout.egg'),
@@ -2989,7 +2938,6 @@ def test_suite():
                (re.compile(r'^[*]...'), '...'),
                ]),
             ),
-        zc.buildout.testselectingpython.test_suite(),
         zc.buildout.rmtree.test_suite(),
         doctest.DocFileSuite(
             'windows.txt',

src/zc/buildout/testselectingpython.py

-##############################################################################
-#
-# Copyright (c) 2006 Zope Foundation and Contributors.
-# All Rights Reserved.
-#
-# This software is subject to the provisions of the Zope Public License,
-# Version 2.1 (ZPL).  A copy of the ZPL should accompany this distribution.
-# THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED
-# WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
-# WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS
-# FOR A PARTICULAR PURPOSE.
-#
-##############################################################################
-import os, re, sys, unittest
-from zope.testing import doctest, renormalizing
-import zc.buildout.tests
-import zc.buildout.testing
-
-if sys.version_info[:2] == (2, 4):
-    other_version = "2.5"
-else:
-    other_version = "2.4"
-
-__test__ = dict(
-    test_selecting_python_via_easy_install=
-    """\
-
-We can specify a specific Python executable.
-
-    >>> dest = tmpdir('sample-install')
-    >>> ws = zc.buildout.easy_install.install(
-    ...     ['demo'], dest, links=[link_server],
-    ...     index='http://www.python.org/pypi/',
-    ...     always_unzip=True, executable=other_executable)
-
-    >>> ls(dest)
-    d  demo-0.3-py%(other_version)s.egg
-    d  demoneeded-1.1-py%(other_version)s.egg
-
-""" % dict(other_version=other_version)
-    )
-
-def multi_python(test):
-    other_executable = zc.buildout.testing.find_python(other_version)
-    sample_eggs = test.globs['tmpdir']('sample_eggs')
-    os.mkdir(os.path.join(sample_eggs, 'index'))
-    test.globs['sample_eggs'] = sample_eggs
-    zc.buildout.tests.create_sample_eggs(test, executable=other_executable)
-    test.globs['other_executable'] = other_executable
-
-
-def setup(test):
-    zc.buildout.testing.buildoutSetUp(test)
-    multi_python(test)
-    zc.buildout.tests.add_source_dist(test)
-    test.globs['link_server'] = test.globs['start_server'](
-        test.globs['sample_eggs'])
-
-
-def test_suite():
-    return doctest.DocTestSuite(
-        setUp=setup,
-        tearDown=zc.buildout.testing.buildoutTearDown,
-        checker=renormalizing.RENormalizing([
-            (re.compile('setuptools-\S+-py%s.egg' % other_version),
-             'setuptools-V-py%s.egg' % other_version),
-            ]),
-        )

src/zc/buildout/update.txt

@@ -89,7 +89,7 @@ Our buildout script has been updated to use the new eggs (HACK: only for
 setuptools):
 
     >>> cat(sample_buildout, 'bin', 'buildout')
-    #!/usr/local/bin/python2.4
+    #!/usr/local/bin/python2.7
     <BLANKLINE>
     import sys
     sys.path[0:0] = [

src/zc/buildout/upgrading_distribute.txt

@@ -47,7 +47,6 @@ test: we only want to test that ``_get_dist()`` isn't getting called:
     ...     dest=dest,
     ...     links=[link_server],
     ...     index=link_server+'index/',
-    ...     executable=sys.executable,
     ...     always_unzip=True)
     >>> installer._get_dist = mock_get_dist
     >>> installer._call_easy_install('setuptools', None, dest, dist)

zc.recipe.egg_/src/zc/recipe/egg/README.txt

@@ -23,12 +23,6 @@ index
    we'll just point to an empty directory on our link server.  This
    will make our examples run a little bit faster.
 
-python
-   The name of a section to get the Python executable from.
-   If not specified, then the buildout python option is used.  The
-   Python executable is found in the executable option of the named
-   section.
-
 We have a link server that has a number of distributions:
 
     >>> print get(link_server),
@@ -373,7 +367,7 @@ extra-paths option:
 Let's look at the script that was generated:
 
     >>> cat(sample_buildout, 'bin', 'foo') # doctest: +NORMALIZE_WHITESPACE
-    #!/usr/local/bin/python2.4
+    #!/usr/local/bin/python2.7
     <BLANKLINE>
     import sys
     sys.path[0:0] = [
@@ -420,7 +414,7 @@ breaking scripts.
 Let's look at the script that was generated:
 
     >>> cat(sample_buildout, 'bin', 'foo') # doctest: +NORMALIZE_WHITESPACE
-    #!/usr/local/bin/python2.4
+    #!/usr/local/bin/python2.7
     <BLANKLINE>
     import os
     <BLANKLINE>
@@ -467,7 +461,7 @@ each individual script section:
     Generated script '/sample-buildout/bin/foo'.
 
     >>> cat(sample_buildout, 'bin', 'foo') # doctest: +NORMALIZE_WHITESPACE
-    #!/usr/local/bin/python2.4
+    #!/usr/local/bin/python2.7
     <BLANKLINE>
     import os
     <BLANKLINE>
@@ -520,7 +514,7 @@ to be included in generated scripts:
     Generated script '/sample-buildout/bin/foo'.
 
     >>> cat(sample_buildout, 'bin', 'foo') # doctest: +NORMALIZE_WHITESPACE
-    #!/usr/local/bin/python2.4
+    #!/usr/local/bin/python2.7
     <BLANKLINE>
     import sys
     sys.path[0:0] = [
@@ -578,7 +572,7 @@ declare entry points using the entry-points option:
     -  other
 
     >>> cat(sample_buildout, 'bin', 'other')
-    #!/usr/local/bin/python2.4
+    #!/usr/local/bin/python2.7
     <BLANKLINE>
     import sys
     sys.path[0:0] = [

zc.recipe.egg_/src/zc/recipe/egg/api.txt

@@ -6,7 +6,7 @@ and generate scripts based on the resulting working sets.  The egg
 recipe provides an API that other recipes can use.
 
 A recipe can reuse the egg recipe, supporting the eggs, find-links,
-index, extra-paths, and python options.  This is done by creating an
+index, and extra-paths options.  This is done by creating an
 egg recipe instance in a recipes's contructor.  In the recipe's
 install script, the egg-recipe instance's working_set method is used
 to collect the requested eggs and working set.
@@ -112,7 +112,6 @@ computed by the egg recipe by looking at .installed.cfg:
     develop-eggs-directory = /sample-buildout/develop-eggs
     eggs = demo<0.3
     eggs-directory = /sample-buildout/eggs
-    executable = /usr/local/bin/python2.3
     extras = other
     find-links = http://localhost:27071/
     index = http://localhost:27071/index

zc.recipe.egg_/src/zc/recipe/egg/custom.py

@@ -16,8 +16,12 @@
 $Id$
 """
 
-import logging, os, re, zipfile
+import logging
+import os
+import re
+import sys
 import zc.buildout.easy_install
+import zipfile
 
 logger = logging.getLogger(__name__)
 
@@ -29,9 +33,6 @@ class Base:
 
         options['_d'] = buildout['buildout']['develop-eggs-directory']
 
-        python = options.get('python', buildout['buildout']['python'])
-        options['executable'] = buildout[python]['executable']
-
         self.build_ext = build_ext(buildout, options)
 
     def update(self):
@@ -92,8 +93,8 @@ class Custom(Base):
         try:
             return zc.buildout.easy_install.build(
                 distribution, options['_d'], self.build_ext,
-                self.links, self.index, options['executable'], [options['_e']],
-                newest=self.newest,
+                self.links, self.index, sys.executable,
+                [options['_e']], newest=self.newest,
                 )
         finally:
             self._restore_environment()
@@ -130,9 +131,7 @@ class Develop(Base):
     def install(self):
         options = self.options
         return zc.buildout.easy_install.develop(
-            options['setup'], options['_d'], self.build_ext,
-            options['executable'],
-            )
+            options['setup'], options['_d'], self.build_ext)
 
 
 def build_ext(buildout, options):

zc.recipe.egg_/src/zc/recipe/egg/custom.txt

@@ -76,12 +76,6 @@ index
    we'll just point to an empty directory on our link server.  This
    will make our examples run a little bit faster.
 
-python
-   The name of a section to get the Python executable from.
-   If not specified, then the buildout python option is used.  The
-   Python executable is found in the executable option of the named
-   section. 
-
 environment
    The name of a section with additional environment variables. The
    environment variables are set before the egg is built.
@@ -502,12 +496,6 @@ swig-cpp
 swig-opts
    List of SWIG command line options
 
-python
-   The name of a section to get the Python executable from.
-   If not specified, then the buildout python option is used.  The
-   Python executable is found in the executable option of the named
-   section. 
-
 To illustrate this, we'll use a directory containing the extdemo
 example from the earlier section:
 

zc.recipe.egg_/src/zc/recipe/egg/egg.py

@@ -12,12 +12,14 @@
 #
 ##############################################################################
 """Install packages as eggs
-
-$Id$
 """
 
-import logging, os, re, zipfile
+import logging
+import os
+import re
+import sys
 import zc.buildout.easy_install
+import zipfile
 
 class Eggs(object):
 
@@ -52,9 +54,6 @@ class Eggs(object):
 
         assert options.get('unzip') in ('true', 'false', None)
 
-        python = options.get('python', buildout['buildout']['python'])
-        options['executable'] = buildout[python]['executable']
-
     def working_set(self, extra=()):
         """Separate method to just get the working set
 
@@ -71,7 +70,7 @@ class Eggs(object):
 
         if self.buildout['buildout'].get('offline') == 'true':
             ws = zc.buildout.easy_install.working_set(
-                distributions, options['executable'],
+                distributions,
                 [options['develop-eggs-directory'], options['eggs-directory']]
                 )
         else:
@@ -83,7 +82,6 @@ class Eggs(object):
                 distributions, options['eggs-directory'],
                 links=self.links,
                 index=self.index,
-                executable=options['executable'],
                 path=[options['develop-eggs-directory']],
                 newest=self.buildout['buildout'].get('newest') == 'true',
                 allow_hosts=self.allow_hosts,
@@ -159,8 +157,7 @@ class Scripts(Eggs):
                         reqs.append(name)
 
             return zc.buildout.easy_install.scripts(
-                reqs, ws, options['executable'],
-                options['bin-directory'],
+                reqs, ws, sys.executable, options['bin-directory'],
                 scripts=scripts,
                 extra_paths=self.extra_paths,
                 interpreter=options.get('interpreter'),

zc.recipe.egg_/src/zc/recipe/egg/selecting-python.txt

-Controlling which Python to use
--------------------------------
-
-The following assumes that you have Python 2.4 installed.
-
-We can specify the python to use by specifying the name of a section
-to read the Python executable from.  The default is the section
-defined by the python buildout option.
-
-We have a link server:
-
-    >>> print get(link_server),
-    <html><body>
-    <a href="bigdemo-0.1-py2.4.egg">bigdemo-0.1-py2.4.egg</a><br>
-    <a href="demo-0.1-py2.4.egg">demo-0.1-py2.4.egg</a><br>
-    <a href="demo-0.2-py2.4.egg">demo-0.2-py2.4.egg</a><br>
-    <a href="demo-0.3-py2.4.egg">demo-0.3-py2.4.egg</a><br>
-    <a href="demo-0.4c1-py2.4.egg">demo-0.4c1-py2.4.egg</a><br>
-    <a href="demoneeded-1.0.zip">demoneeded-1.0.zip</a><br>
-    <a href="demoneeded-1.1.zip">demoneeded-1.1.zip</a><br>
-    <a href="demoneeded-1.2c1.zip">demoneeded-1.2c1.zip</a><br>
-    <a href="extdemo-1.4.zip">extdemo-1.4.zip</a><br>
-    <a href="index/">index/</a><br>
-    <a href="other-1.0-py2.4.egg">other-1.0-py2.4.egg</a><br>
-    </body></html>
-
-We have a sample buildout.  Let's update it's configuration file to
-install the demo package using Python 2.4. 
-
-    >>> write(sample_buildout, 'buildout.cfg',
-    ... """
-    ... [buildout]
-    ... parts = demo
-    ... eggs-directory = eggs
-    ... index = http://www.python.org/pypi/
-    ...
-    ... [python2.4]
-    ... executable = %(python23)s
-    ...
-    ... [demo]
-    ... recipe = zc.recipe.egg
-    ... eggs = demo <0.3
-    ... find-links = %(server)s
-    ... python = python2.4
-    ... interpreter = py-demo
-    ... """ % dict(server=link_server, python23=other_executable))
-
-Now, if we run the buildout:
-
-   >>> import os
-   >>> os.chdir(sample_buildout)
-   >>> buildout = os.path.join(sample_buildout, 'bin', 'buildout')
-   >>> print system(buildout),
-   Installing demo.
-   Getting distribution for 'demo<0.3'.
-   Got demo 0.2.
-   Getting distribution for 'demoneeded'.
-   Getting distribution for 'setuptools'.
-   Got setuptools 0.6.
-   Got demoneeded 1.2c1.
-   Generated script '/sample-buildout/bin/demo'.
-   Generated interpreter '/sample-buildout/bin/py-demo'.
-
-we'll get the Python 2.4 eggs for demo and demoneeded:
-
-    >>> ls(sample_buildout, 'eggs')
-    -  demo-0.2-py2.4.egg
-    -  demoneeded-1.2c1-py2.4.egg
-    d  setuptools-0.6-py2.4.egg
-    d  setuptools-0.6-py2.5.egg
-    -  zc.buildout-1.0-py2.5.egg
- 
-And the generated scripts invoke Python 2.4:
-
-    >>> import sys
-    >>> if sys.platform == 'win32':
-    ...    script_name = 'demo-script.py'
-    ... else:
-    ...    script_name = 'demo'
-    >>> f = open(os.path.join(sample_buildout, 'bin', script_name))
-    >>> shebang = f.readline().strip()
-    >>> if shebang[:3] == '#!"' and shebang[-1] == '"':
-    ...     shebang = '#!'+shebang[3:-1]
-    >>> shebang == '#!' + other_executable
-    True
-    >>> print f.read(), # doctest: +NORMALIZE_WHITESPACE
-    <BLANKLINE>
-    import sys
-    sys.path[0:0] = [
-      '/sample-buildout/eggs/demo-0.2-py2.4.egg',
-      '/sample-buildout/eggs/demoneeded-1.2c1-py2.4.egg',
-      ]
-    <BLANKLINE>
-    import eggrecipedemo
-    <BLANKLINE>
-    if __name__ == '__main__':
-        eggrecipedemo.main()
-
-    >>> if sys.platform == 'win32':
-    ...     f = open(os.path.join(sample_buildout, 'bin', 'py-demo-script.py'))
-    ... else:
-    ...     f = open(os.path.join(sample_buildout, 'bin', 'py-demo'))
-
-    >>> shebang = f.readline().strip()
-    >>> if shebang[:3] == '#!"' and shebang[-1] == '"':
-    ...     shebang = '#!'+shebang[3:-1]
-    >>> shebang == '#!' + other_executable
-    True
-    >>> print f.read(), # doctest: +NORMALIZE_WHITESPACE
-    <BLANKLINE>
-    import sys
-    <BLANKLINE>
-    sys.path[0:0] = [
-      '/sample-buildout/eggs/demo-0.2-py2.4.egg',
-      '/sample-buildout/eggs/demoneeded-1.2c1-py2.4.egg',
-      ]
-    <BLANKLINE>
-    _interactive = True
-    if len(sys.argv) > 1:
-        _options, _args = __import__("getopt").getopt(sys.argv[1:], 'ic:m:')
-        _interactive = False
-        for (_opt, _val) in _options:
-            if _opt == '-i':
-                _interactive = True
-            elif _opt == '-c':
-                exec _val
-            elif _opt == '-m':
-                sys.argv[1:] = _args
-                _args = []
-                __import__("runpy").run_module(
-                     _val, {}, "__main__", alter_sys=True)
-    <BLANKLINE>
-        if _args:
-            sys.argv[:] = _args
-            __file__ = _args[0]
-            del _options, _args
-            execfile(__file__)
-    <BLANKLINE>
-    if _interactive:
-        del _interactive
-        __import__("code").interact(banner="", local=globals())
-
-    >>> f.close()

zc.recipe.egg_/src/zc/recipe/egg/tests.py

@@ -14,7 +14,6 @@
 
 import os, re, shutil, sys
 import zc.buildout.tests
-import zc.buildout.testselectingpython
 import zc.buildout.testing
 
 import unittest
@@ -33,10 +32,6 @@ def setUp(test):
     zc.buildout.tests.easy_install_SetUp(test)
     zc.buildout.testing.install_develop('zc.recipe.egg', test)
 
-def setUpSelecting(test):
-    zc.buildout.testselectingpython.setup(test)
-    zc.buildout.testing.install_develop('zc.recipe.egg', test)
-    
 def test_suite():
     suite = unittest.TestSuite((
         doctest.DocFileSuite(
@@ -68,8 +63,6 @@ def test_suite():
                            'zc.buildout-\S+\s*'
                            ),
                 '__buildout_signature__ = sample- zc.recipe.egg-'),
-               (re.compile('executable = [\S ]+python\S*', re.I),
-                'executable = python'),
                (re.compile('find-links = http://localhost:\d+/'),
                 'find-links = http://localhost:8080/'),
                (re.compile('index = http://localhost:\d+/index'),
@@ -89,33 +82,7 @@ def test_suite():
                (re.compile('extdemo[.]pyd'), 'extdemo.so')
                ]),
             ),
-        
         ))
-
-    if sys.version_info[:2] == (2, 5):
-        # Only run selecting python tests if not 2.4, since
-        # 2.4 is the alternate python used in the tests.
-        suite.addTest(
-            doctest.DocFileSuite(
-                'selecting-python.txt',
-                setUp=setUpSelecting,
-                tearDown=zc.buildout.testing.buildoutTearDown,
-                checker=renormalizing.RENormalizing([
-                   zc.buildout.testing.normalize_path,
-                   zc.buildout.testing.normalize_endings,
-                   zc.buildout.testing.normalize_script,
-                   (re.compile('Got setuptools \S+'), 'Got setuptools V'),
-                   (re.compile('([d-]  )?setuptools-\S+-py'),
-                    'setuptools-V-py'),
-                   (re.compile('-py2[.][0-35-9][.]'), 'py2.5.'),
-                   (re.compile('zc.buildout-\S+[.]egg'),
-                    'zc.buildout.egg'),
-                   (re.compile('zc.buildout[.]egg-link'),
-                    'zc.buildout.egg'),
-                   ]),
-                ),
-            )
-    
     return suite
 
 if __name__ == '__main__':