Python3: list dict set [UNK]unhashable type

 

code

coder@ubuntu:~$ source activate py37
(py37) coder@ubuntu:~$ ipython
Python 3.7.3 (default, Mar 27 2019, 22:11:17) 
Type 'copyright', 'credits' or 'license' for more information
IPython 7.5.0 -- An enhanced Interactive Python. Type '?' for help.

In [1]: hash(list())                                                            
---------------------------------------------------------------------------
TypeError                                 Traceback (most recent call last)
<ipython-input-1-3e2eb619e4e4> in <module>
----> 1 hash(list())

TypeError: unhashable type: 'list'

In [2]: hash(dict())                                                            
---------------------------------------------------------------------------
TypeError                                 Traceback (most recent call last)
<ipython-input-2-7762fff637c6> in <module>
----> 1 hash(dict())

TypeError: unhashable type: 'dict'

In [3]: hash(set())                                                             
---------------------------------------------------------------------------
TypeError                                 Traceback (most recent call last)
<ipython-input-3-2699417ebeac> in <module>
----> 1 hash(set())

TypeError: unhashable type: 'set'

In [4]: exit                                                                    
(py37) coder@ubuntu:~$ conda deactivate
coder@ubuntu:~$ 

source_code

def hash(*args, **kwargs): # real signature unknown
    """
    Return the hash value for the given object.
    
    Two objects that compare equal must also have the same hash value, but the
    reverse is not necessarily true.
    """
    pass

 

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