I see that there are 16 exercises marked with "N/A". IMO for these we could try finding equivalents in PDL. For example exercise 26 is to get output from this code:

print(sum(range(5),-1))
from numpy import *
print(sum(range(5),-1))
[download]

I guess it should be possible to change the code to the equivalent in PDL. In this way it will become possible to solve all the exercises.