TypeError: unhashable type: 'list' Code: aTargetDictionary = {} for aKey in aSourceDictionary: aTargetDictionary[aKey] = [] Dictionaries, sets, lists, and Series are mutable and, therefore, cannot be hashed. Conversely, numeric types, booleans, and strings are immutable, so they can all be hashed. Tuples are also immutable but can only be hashed if their elements and subelements are also immutable Authorities within Enterprise Zone areas, with support from the Welsh Government’s Planning Improvement Fund, saving businesses time and money and making locating to Teams. Q&A for work. Connect and share knowledge within a single location that is structured and easy to search. Learn more about Teams Python TypeError: unhashable type: ‘dict’ Solution. By James Gallagher. Updated. December 1, The Python language is specific about what can be used
Python TypeError unhashable type list - Stack Overflow
You simply messed up creating a new key - dicts are implemented as hash-maps and requires hashable objects as their keys. You are clearly passing single-element list (square brackets around newk variable).. Is this works OK? This means that you’re using an unhashable value as a key in a dict or set. Keys need to be hashable for these to work because fast lookup is based on dividing values into small “buckets”, each of which contains very few values (ideally just 0 or 1 value). The distribution of values is based on the hash function of the key. In order for dictionary Traceback (most recent call last): File "J:#", line 21, in data = {name: {user_details}} TypeError: unhashable type: 'dict' So as far as I understood, we cannot use dictionary as a key in a dict "key: value" relationship. This is the part of the code causing the issue on line 21 1 print(hash(dictionary)) TypeError: unhashable type: 'dict' The code prints out the type to confirm the dictionary object is a ‘dict’ object. When we try to print the dictionary’s The Python "TypeError: unhashable type: 'dict'" occurs when we use a dictionary as a key in another dictionary or as an element in a set. To solve the error,
Python3 and networkx=2.2: set_node_attributes and getting unhashable ...
For your case you can simply do: tmp1 = tmp[list(tmp)[0]] However this can be quite expensive. If all you need is any element from the dictionary then you could do: tmp1 = tmp[next(iter(tmp))] which avoids the cost of constructing the key list. Share I have come across this problem [HOST]e() when converting results from a Rest API from dict (or list) to pandas dataframe. The problem is that one of the columns is stored as a list or dict (common situation in nested json results). TypeError: unhashable type: 'list' df_data = df[columns] Hot Network Questions The variable v in this expression: key, v = spl [0], spl [1:] is a list with the remaining values. You cannot use a list to index a dictionary, so this: del dic [v] will fail. Looking at the code logic, you probably want to do this anyway: for