[Tutor] Pickling debugging question

[Jonathan Hayward http://JonathansCorner.com]

I am trying to save a monolith consisting of classes I wrote, all 
boiling down to primitive objects. I get this error:

Traceback (most recent call last):
  File "/home/jonathan/dm/datamined", line 1889, in keep_saving_monolith
    save_object(monolith, "monolith")
  File "/home/jonathan/dm/datamined", line 1935, in save_object
    cPickle.dump(object, filehandle)
  File "/usr/lib/python2.2/copy_reg.py", line 57, in _reduce
    raise TypeError, "can't pickle %s objects" % base.__name__
TypeError: can't pickle function objects

Could this mean that I typed:

    self.field = function

instead of

    self.field = function()

What are the probable culprits for this type of error?

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