I'm getting AttributeError when I call a method in other class

Question

I'm very new to Python and I have a code like this:

class Configuration:
 @staticmethod
 def test():
 return "Hello World"

When I call the method test from other python code like this:

import test
test.Configuration.test()

I get an error like this:

Traceback (most recent call last):
 File "example.py", line 3, in <module>
 test.Configuration.test()
AttributeError: 'module' object has no attribute 'test'

where I'm making the mistake?

Edit:

My directory structure:

root
--example.py
--test
----__init.py__
----Configuration.py

• Martijn Pieters: Do you have a directory test with a file Configuration.py in it somewhere? Or did you have a file Configuration.py that you imported in test?
• Martijn Pieters: What does import test; print test.Configuration.__file__ print?
• alioguzhan: If you mean another python file by saying another python code, you should create an empty __init__.py in same directory with your test function located.
• Martijn Pieters: @ali: The OP is not trying to create a package here. That is not the problem.
• batman: @MartijnPieters: Its printing the Configuration location.. like /dir/Configuration.pyc.

Answer 1

Python module names and the classes they contain are separate. You need use the full path:

import test
print test.Configuration.Configuration.test()

Your test package has a module named Configuration, and inside that module is your Configuration class.

Note that Python, unlike Java, lets you define methods outside classes too, no need to make this a static method. Nor do you need to use a separate file per class.

Answer 2

Try to rename your module to something other than 'test', since this is the name of a standard library module (http://docs.python.org/2/library/test.html) and probably you're importing that module instead of your own. Another option is to add the directory containing your test module into the PYTHONPATH environment variable, so that python may find it instead of the standard library module (but this is not advised as it shadows the standard module and you won't be able to import it later).

To check which file you're importing from, do:

import test
print test

• Martijn Pieters: There is no Configuration file in the python test package. There is no Configuration.py file anywhere in the Python library.