Strange import behavior

[unexpected]

Hey guys,

I'm having problems importing a file into my python app. Everytime I
try to define the object specified by this file, i.e,

test = Test(),

It raises an ImportError exception: ImportError: cannot import name
Test.

I've declared it as:

from test import Test (and I've also tried from test import *)

As luck would have it, if I try creating a newfile (say test2) and then
declare the same class as:

from test2 import Test()

It works fine! I tried doing this with the first couple of files, but
then another error crops up for another file giving me this
ImportError...so I'd end up having to re-copy a bunch of files over
again.

I feel like there may be some sort of dependency screw up or
whatever..Is there a command that's like "Python, chill, let's start
from scratch and build this thing"?

 

[Fredrik Lundh]

I'm having problems importing a file into my python app. Everytime I
try to define the object specified by this file, i.e,

test = Test(),

It raises an ImportError exception: ImportError: cannot import name
Test.

I've declared it as:

from test import Test (and I've also tried from test import *)

As luck would have it, if I try creating a newfile (say test2) and then
declare the same class as:

from test2 import Test()

It works fine!

your code samples make very little sense, and the last one isn't even
valid Python syntax.

maybe you could post a complete self-contained example (including the
file names, and what's in what file), instead of typing from memory ?

</F>

 

[Peter Otten]

Hey guys,

I'm having problems importing a file into my python app. Everytime I
try to define the object specified by this file, i.e,

test = Test(),

It raises an ImportError exception: ImportError: cannot import name
Test.

I've declared it as:

from test import Test (and I've also tried from test import *)

As luck would have it, if I try creating a newfile (say test2) and then
declare the same class as:

from test2 import Test()

It works fine! I tried doing this with the first couple of files, but
then another error crops up for another file giving me this
ImportError...so I'd end up having to re-copy a bunch of files over
again.

I feel like there may be some sort of dependency screw up or
whatever..Is there a command that's like "Python, chill, let's start
from scratch and build this thing"?

Replace

from test import Test

with

import test
print test.__file__
raise SystemExit

The test file you are importing is probably not the one you expect. To fix
that make sure that the directory of /your/ test.py is in sys.path /before/
the directory of the test file you are accidentally importing. Even better,
rename it to something unambiguous as the name 'test' is already taken by
the test package of a vanilla Python installation. For example, I get
'/usr/local/lib/python2.4/test/__init__.pyc'

The ImportError is actually an AttributeError in disguise:
Traceback (most recent call last):
Traceback (most recent call last):
File "<stdin>", line 1, in ?
ImportError: cannot import name Test

Peter