[Python-ideas] 'from os.path import FILE, DIR' or internal structure of filenames

[INADA Naoki]

os.path.abspath(__file__) returns wrong path after chdir.
So I don't think abspath of module can be trivially and reliably derived
from existing values.

$ cat foo.py
import os
print(os.path.abspath(__file__))
os.chdir('work')
print(os.path.abspath(__file__))

$ python foo.py
/home/inada-n/foo.py
/home/inada-n/work/foo.py



On Sun, Sep 29, 2013 at 9:21 AM, Nick Coghlan <ncoghlan at gmail.com> wrote:

> Note that any remaining occurrences of non-absolute values in __file__ are
> generally considered bugs in the import system. However, we tend not to fix
> them in maintenance releases, since converting relative paths to absolute
> paths runs a risk of breaking user code.
>
> We're definitely *not* going to further pollute the module namespace with
> values that can be trivially and reliably derived from existing values.
>
> Cheers,
> Nick.
>
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>


-- 
INADA Naoki  <songofacandy at gmail.com>
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