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python Programming Glossary: unhashable

Is a Python dictionary an example of a hash table?

http://stackoverflow.com/questions/114830/is-a-python-dictionary-an-example-of-a-hash-table

File stdin line 1 in module TypeError list objects are unhashable a b 'some' Traceback most recent call last File stdin line 1.. File stdin line 1 in module TypeError list objects are unhashable You can read more about hash tables or check how it has been..

Python hashable dicts

http://stackoverflow.com/questions/1151658/python-hashable-dicts

recent call last File stdin line 1 in module TypeError unhashable type 'dict' I guess it has to be tuples all the way down. Now..

Python - Subtract a list of dicts from another

http://stackoverflow.com/questions/12100731/python-subtract-a-list-of-dicts-from-another

.difference missing_networks But I receive the error unhashable type 'dict' My data structure looks like this list 'found' False..

Python: Add list to set?

http://stackoverflow.com/questions/1306631/python-add-list-to-set

line 1 in module a.add l TypeError list objects are unhashable I think that I can't add the list to the set because there's.. as well as dictionary keys have to be hashable Some unhashable datatypes list use tuple instead set use frozenset instead dict..

Efficient slicing of matrices using matrix multiplication, with Python, NumPy, SciPy

http://stackoverflow.com/questions/14477448/efficient-slicing-of-matrices-using-matrix-multiplication-with-python-numpy-s

and column. The column operator is not working on this unhashable type of a sparse matrix. How can I get this B by using matrix..

Constructing a python set from a numpy matrix

http://stackoverflow.com/questions/1939228/constructing-a-python-set-from-a-numpy-matrix

from numpy import x array 3 2 3 4 4 4 y set x TypeError unhashable type 'numpy.ndarray' How can I easily and efficiently create..

why dict objects are unhashable in python?

http://stackoverflow.com/questions/1957396/why-dict-objects-are-unhashable-in-python

dict objects are unhashable in python I mean why cant we put key of dict as dict that means..

Create a dictionary in python which is indexed by lists

http://stackoverflow.com/questions/2671211/create-a-dictionary-in-python-which-is-indexed-by-lists

recent call last File stdin line 1 in module TypeError unhashable type 'list' d 1 2 3 1 2 3 3 d 2 3 3 1 2 3 1 d 2 3 3 share..

Python - anyone have a memoizing decorator that can handle unhashable arguments?

http://stackoverflow.com/questions/4669391/python-anyone-have-a-memoizing-decorator-that-can-handle-unhashable-arguments

anyone have a memoizing decorator that can handle unhashable arguments I've been using the following memoizing decorator.. an implementation or a tweak to this one that allows for unhashable arguments e.g. dictionaries I know that the lack of a hash value..

Counting collisions in a Python dictionary

http://stackoverflow.com/questions/4865325/counting-collisions-in-a-python-dictionary

you define __eq__ on a class Python gives you a TypeError unhashable instance if you don't also define a __hash__ function. It doesn't..

How can I create a Set of Sets in Python?

http://stackoverflow.com/questions/5931291/how-can-i-create-a-set-of-sets-in-python

elements set 2 3 4 xx.add elements but I get TypeError unhashable type 'list' or TypeError unhashable type 'set' Is it possible.. but I get TypeError unhashable type 'list' or TypeError unhashable type 'set' Is it possible to have a set of sets in python I..

Why aren't Python sets hashable?

http://stackoverflow.com/questions/6310867/why-arent-python-sets-hashable

recent call last File stdin line 1 in module TypeError unhashable type 'set' Is there a good reason Python sets are not hashable..

How to memoize **kwargs?

http://stackoverflow.com/questions/6407993/how-to-memoize-kwargs

set of input parameters and kwargs is a dict and hence unhashable. I have tried following discussions here using args frozenset..

Color matplotlib plot_surface command with surface gradient

http://stackoverflow.com/questions/6539944/color-matplotlib-plot-surface-command-with-surface-gradient

cm.py line 126 in get_cmap if name in cmap_d TypeError unhashable type 'list' Any inputs would be helpful. Praboo python matlab..

A list as a key for a dictionary

http://stackoverflow.com/questions/6698307/a-list-as-a-key-for-a-dictionary

. Unfortunately according to the TypeError I'm getting unhashable type list it seems that python doesn't like hashing lists. All..