On 02/10/2012 09:51 AM, Andrea Crotti wrote:
Ok now it's getting really confusing, I tried a small example to see
what is the real behaviour,
so I created some package namespaces (where the __init__.py declare the
namespace package).
/home/andrea/test_ns:
total used in directory 12 available 5655372
drwxr-xr-x 3 andrea andrea 4096 Feb 10 14:46 a.b
drwxr-xr-x 3 andrea andrea 4096 Feb 10 14:46 a.c
-rw-r--r-- 1 andrea andrea 125 Feb 10 14:46 test.py
/home/andrea/test_ns/a.b:
total 8
drwxr-xr-x 3 andrea andrea 4096 Feb 10 14:47 a
-rw-r--r-- 1 andrea andrea 56 Feb 10 14:35 __init__.py
/home/andrea/test_ns/a.b/a:
total 8
drwxr-xr-x 2 andrea andrea 4096 Feb 10 14:47 b
-rw-r--r-- 1 andrea andrea 56 Feb 10 14:35 __init__.py
/home/andrea/test_ns/a.b/a/b:
total 12
-rw-r--r-- 1 andrea andrea 25 Feb 10 14:36 api.py
-rw-r--r-- 1 andrea andrea 153 Feb 10 14:37 api.pyc
-rw-r--r-- 1 andrea andrea 56 Feb 10 14:35 __init__.py
/home/andrea/test_ns/a.c:
total 8
drwxr-xr-x 3 andrea andrea 4096 Feb 10 14:47 a
-rw-r--r-- 1 andrea andrea 56 Feb 10 14:35 __init__.py
/home/andrea/test_ns/a.c/a:
total 8
drwxr-xr-x 2 andrea andrea 4096 Feb 10 14:47 c
-rw-r--r-- 1 andrea andrea 56 Feb 10 14:35 __init__.py
/home/andrea/test_ns/a.c/a/c:
total 12
-rw-r--r-- 1 andrea andrea 20 Feb 10 14:36 api.py
-rw-r--r-- 1 andrea andrea 148 Feb 10 14:38 api.pyc
-rw-r--r-- 1 andrea andrea 56 Feb 10 14:35 __init__.py
So this test.py works perfectly:
import sys
sys.path.insert(0, 'a.c')
sys.path.insert(0, 'a.b')
from a.b import api as api_ab
from a.c import api as api_ac
While just mixing the order:
import sys
sys.path.insert(0, 'a.b')
from a.b import api as api_ab
sys.path.insert(0, 'a.c')
from a.c import api as api_ac
Doesn't work anymore
[andrea@precision test_ns]$ python2 test.py
Traceback (most recent call last):
File "test.py", line 7, in <module>
from a.c import api as api_ac
ImportError: No module named c
Am I missing something/doing something stupid?
Yes, you've got periods in your directory names. A period means
something special within python, and specifically within the import.
When you say from a.c import api
You're telling it: from package a get module c, and from there
impoort the symbol api
But package a has no module c, so it complains.
In an earlier message you asserted you were using all absolute paths in
your additions to sys.path. Here you're inserting relative ones. How come?
--
DaveA
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