Question

I have recently switched from python 2.7 to python 3.2

considering following folder structure:

~/my_program
~/my_program/modules

where *my_program* is the root of the application, containing main script called main.py

  *my_program/modules* is used to store all additional classes and subscripts

in python2.x I was able to import any file “module” the same way I do import standard modules

from modules import abc.py 

however, while I try to launch the same program in python3.2 I get the error message saying:

File "/my_program/modules/__init__.py" line 1
import abc, def

ImportError: No module named abc

Please advise

Answer 1

It’s a good example you are using, because “abc” is in fact a module in the standard library. So in fact, if you in Python 3 do import abc that will work just fine, but you will get the standard library module.

In Python 2, if you had a local module called abc.py, that import abc would import the local module instead. That means you couldn’t import the module from the standard library.

In Python 3, this has been changed, and you now need to use the fully qualified name, in your case probably from modules import abc.