This post originated from an RSS feed registered with Python Buzz by Jarno Virtanen. Original Post: My brain and pickle don't mix Feed Title: Python owns us Feed URL: http://sedoparking.com/search/registrar.php?domain=®istrar=sedopark Feed Description: A weblog about Python from the view point of Jarno Virtanen. Latest Python Buzz Posts Latest Python Buzz Posts by Jarno Virtanen Latest Posts From Python owns us

There is something deeply wrong in my brain. I just cannot, for the life of me, remember the correct order of arguments for pickle.dump(). Just few minutes ago, I wrote these lines in order to test whether I could get it right this time:

import pickle 
data = {'foo': 1, 'baz': 2} 
handle = open('test.pickle', 'w') 
pickle.dump(handle, data) 

Traceback (most recent call last):
  File "", line 9, in ?
  File "/usr/lib/python2.2/pickle.py", line 974, in dump
    Pickler(file, bin).dump(object)
  File "/usr/lib/python2.2/pickle.py", line 110, in __init__
    self.write = file.write
AttributeError: 'dict' object has no attribute 'write'

What is wrong with me? Sure, I don't use pickle all the time, but I've done this mistake so many times that I should already have learned it. But no. I once even tried to intentionally write it wrong, so that I would actually write it right, but that didn't work out either.

Maybe I need to assign the following for some command line alias:

python -c "import cPickle; print cPickle.dump.__doc__"

Anyhow, I just wanted to share this. Thank you for your attention.