[Tutor] Finding the version # of a module, and py module problem

[W. eWatson]

I must be missing something. I tried this. (Windows, IDLE, Python 2.5)
# Try each module
import sys
import numpy
import scipy
import string

dependencies = "numyp", "scipy"
for dependency in dependencies:
     try:
         __import__(dependency.name)
     except ImportError:
         # Uh oh!
         dependency.installed = None
     else:
         # The module loaded OK. Get a handle to it and try to extract
         # version info.
         # Many Python modules follow the convention of providing their
         # version as a string in a __version__ attribute.
         module = sys.modules[dependency.name]

         # This is what I default to.
         dependency.installed = "[version unknown]"

         for attribute_name in ("__version__", "__VERSION__", "VERSION",
                                "version"):
             if hasattr(module, attribute_name):
                 dependency.installed = getattr(module, attribute_name)
                 break

The result was this.
Traceback (most recent call last):
   File 
"C:/Users/Wayne/Sandia_Meteors/Trajectory_Estimation/dependency_code", 
line 10, in <module>
     __import__(dependency.name)
AttributeError: 'str' object has no attribute 'name'