ITK Python 3 compatibility issue?

[fbudin69500]

Description

itk Python calls execfile in itkBase.py even if ITK is run with Python 3. This should fail as this function does not exist with Python 3, but I haven't found an case in which the piece of code that would create the issue is called.

https://github.com/InsightSoftwareConsortium/ITK/blob/master/Wrapping/Generators/Python/itkBase.py#L94-L98

The issue would be simple to solve as it has already been solve in other locations in the same file:

https://github.com/InsightSoftwareConsortium/ITK/blob/master/Wrapping/Generators/Python/itkBase.py#L282-L286

Maybe the section of the code calling execfile with Python 3 has previously been overlooked.

[fbudin69500]

@thewtex Any idea how to call the code that should fail?

[thewtex]

@fbudin69500 not sure offhand how to invoke it.

But, we should be should be using the standard library module import functions.