[Python-Dev] Compiling 2.7.2 on OS/2

[Paul Smedley]

Hi Terry,

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.
This looks pretty much the same as the code in 2.7.2 - I don't 
understand Python code well enough to debug the script :(

Thanks for the response,

Paul