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Sat Jan 7 09:48:10 CET 2012 · https://mail.python.org/pipermail/python-dev/2012-January/115366.html

Hi All,

On 06/01/12 10:25, Terry Reedy wrote:
> On 1/5/2012 3:01 PM, Paul Smedley wrote:
>
>>> File "./setup.py", line 1154, in detect_modules
>>> for arg in sysconfig.get_config_var("__CONFIG_ARGS").split()]
>>> AttributeError: 'NoneType' object has no attribute 'split'
>>> make: *** [sharedmods] Error 1
>
>> File "./setup.py", line 1368, in detect_modules
>> if '--with-system-expat' in sysconfig.get_config_var("CONFIG_ARGS"):
>> TypeError: argument of type 'NoneType' is not iterable
>> make: *** [sharedmods] Error 1
>>
>> Which again points to problems with
>> sysconfig.get_config_var("CONFIG_ARGS"):
>
> [The earlier call was with "__CONFIG_ARGS", for whatever difference that
> makes.] It appears to be returning None instead of [] (or a populated
> list).
>
> In 3.2.2, at line 579 of sysconfig.py is
> def get_config_var(name):
> return get_config_vars().get(name)
>
> That defaults to None if name is not a key in the dict returned by
> get_config_vars(). My guess is that it always is and and the the value
> is always a list for tested win/*nix/mac systems. So either setup.py has
> the bug of assuming that there is always a list value for "CONFIG_ARGS"
> or sysconfig.py has the bug of not setting it for os2, perhaps because
> of a bug elsewhere.
>
> At line 440 of sysconfig.py is
> def get_config_var(*args):
> global _CONFIG_VARS
> if _CONFIG_VARS is None:
> _CONFIG_VARS = {}
> <code to populate _CONFIG_VARS, including>
> if os.name in ('nt', 'os2'):
> _init_non_posix(_CONFIG_VARS)
> if args:
> vals = []
> for name in args:
> vals.append(_CONFIG_VARS.get(name))
> return vals
> else:
> return _CONFIG_VARS
>
> At 456 is
> def _init_non_posix(vars):
> """Initialize the module as appropriate for NT"""
> # set basic install directories
> ...
>
> "CONFIG_ARGS" is not set explicitly for any system anywhere in the file,
> so I do not know how the call ever works.

using _init_posix() for 'os2' instead of _init_non_posix is the fix for 
this.

sysconfig.py also needs the following changes:

--- \dev\Python-2.7.2-o\Lib\sysconfig.py	2012-01-06 19:27:14.000000000 +1030
+++ sysconfig.py	2012-01-07 19:03:00.000000000 +1030
@@ -46,7 +46,7 @@
          'scripts': '{base}/Scripts',
          'data'   : '{base}',
          },
-    'os2_home': {
+    'os2_user': {
          'stdlib': '{userbase}/lib/python{py_version_short}',
          'platstdlib': '{userbase}/lib/python{py_version_short}',
          'purelib': 
'{userbase}/lib/python{py_version_short}/site-packages',
@@ -413,9 +413,9 @@
          _CONFIG_VARS['platbase'] = _EXEC_PREFIX
          _CONFIG_VARS['projectbase'] = _PROJECT_BASE

-        if os.name in ('nt', 'os2'):
+        if os.name in ('nt'):
              _init_non_posix(_CONFIG_VARS)
-        if os.name == 'posix':
+        if os.name in ('posix', 'os2'):
              _init_posix(_CONFIG_VARS)

          # Setting 'userbase' is done below the call to the







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