Python debugger tells me value of Numpy array is "*** Newest frame"

Question

What does this mean?

My function gets two numpy arrays from a python/c library. After that function call I turn on the debugger to find a bug, so I add the line to look at the two numpy arrays.

    import pdb; pdb.set_trace() 

But for the values of one of the arrays pdb only returns the message *** Newest frame

PDB output:

(Pdb) type(d) <type 'numpy.ndarray'> (Pdb) type(f) <type 'numpy.ndarray'> (Pdb) f.shape (3, 3, 17856) (Pdb) d[0].shape *** Newest frame (Pdb) d[0] *** Newest frame 

Answer 1

The command d is the command for the debugger used to go down the stack to a 'newer frame'. It seems that the parsing cannot not handle this disambiguity.

Try renaming the variable d.

EDIT: Actually, the comments suggest much better handling than renaming.