asked Jul 31, 2019 in Python by Eresh Kumar (35.6k points) python; list; dictionary; Welcome to Intellipaat Community. TypeError: unhashable type: ‘slice’ TypeError: unhashable type: 'set' data-science; python; 1 Answer. A list … Python dictionary : TypeError: unhashable type: 'list' asked Sep 25, 2019 in Python by Sammy (47.8k points) python; dictionary; hash; 0 votes. Get your technical queries answered by top developers ! Related questions 0 … Shaik Ahmad Shaik Ahmad. Categories. Python: TypeError: unhashable type: 'list' asked Sep 11, 2019 in Python by Sammy (47.8k points) python; list; 0 votes. The python error TypeError: unhashable type: ‘list’ occurs when you add a list to a Python Set or as a dictionary key. With more context on what types json and referenceElement are and what they contain, we will be able to better help you if neither solution works. Threads: 121. I have a homework assignment where I need to write a … Get your technical queries answered by top developers ! Comments. Thanks for contributing an answer to Stack Overflow! Dictionaries cannot be sliced like a list. You’ll see a TypeError: unhashable type: 'list' if you try to add a mutable data type (like a list) to a set. You can't put a set in a set because sets can only contain immutable (hashable) types. The python error TypeError: unhashable type: ‘set’ happens when a set is added to another set or used as a key in a dictionary. Python Programing. Let’s assume that the “source” dictionary has string as keys and has a list of custom objects per value. Subscribe. All … I'm stuck and I don't know what I've done wrong. Counting pairs using defaultdict and combinations gives “unhashable type: 'list'” [duplicate] Ask Question Asked today. list many2many unhashable. Viewed 15 times 0. The reason you’re getting the unhashable type: 'list' exception is because k = list[0:j] sets k to be a “slice” of the list, which is another, usually shorter, list. Active today. Please be sure to answer the question.Provide details and share your research! Python TypeError: unhashable type: ‘list’ Solution. Python convert pairs list to dictionary. Python: TypeError: unhashable type: 'list',: 'list' usually means that you are trying to use a list as an hash argument. Feel like you're not … 21 6 6 bronze badges. TypeError: unhashable type: 'list' python tensorflow object-detection inference-engine. Reply. Posts: 2,337. Question or problem about Python programming: I’m having troubles in populating a python dictionary starting from another dictionary. GitHub is home to over 50 million developers working together to host and review code, manage projects, and build software together. Thanks for your subscription! Reputation: 72 #2. The same for v = list[j + 1:] which should just be v = list[2] for the third element of the list returned from the call to readline.split(" "). buran. TypeError: unhashable type: 'list' Solution To fix this error, you can convert the 'list' into a hashable object like tuple then use it as a key for 'set' as shown below: Tip: If … Not applicable ‎02-25-2013 11:43 AM. This is an example of slicing. If you can't explain it to a six year old, you don't understand it yourself, Albert Einstein How to Ask Questions The Smart Way: link and another link Create MCV example Debug small programs. Dictionaries do not have any index numbers and so this syntax does not apply. 27 December 2017. This question already has answers here: Why can't I use a list as a dict key in python? TypeError: unhashable type: 'list' usually means that you are trying to use a list as an hash argument. Joined: Sep 2016. Re: [Python]TypeError: unhashable type: 'list' Well, the clue is in the traceback, as always. affects_2.7 bug support:core traceback. The same for v = list[j + 1:] which should just be v = list[2] for the third element of the list returned from the call to readline.split(" "). 3542. The reason you’re getting the unhashable type: 'list' exception is because k = list[0:j] sets k to be a “slice” of the list, which is logically another, often shorter, list. Python dictionaries only accept hashable data types as a key in a dictionary. Reputation: 540 #5. Subscribe to RSS Feed; Mark Topic as New; Mark Topic as Read; Float this Topic for Current User; Bookmark; Subscribe; Mute; Printer Friendly Page; Unhashable type list errors. Sep-10-2018, 01:17 … Edit Close Delete Flag saud negash. 2 answers. Posts: 7,076. Hi all, This problem is something special but maybe someone can help. I am trying to check if the peak value of any of the average temperatures is satisfied using the if statement below but I am getting TypeError: unhashable type: 'list'. 0. I insist you use the frozenset which is an immutable data structure and also be used as a key … By specifying a colon and an index value, you are telling Python which objects to retrieve. Since tuple is immutable object, it can be used as key in dictionary. answered May 17 by supriya (19.5k points) The set data type is mutable so calculating the hash on it unsafe since hash has a key. Copy link Quote … If you try to add a mutable data type (like a list) to a set, you’ll see the same TypeError, complaining about an unhashable type. Home » Python » TypeError: unhashable type: 'list' when using built-in set function TypeError: unhashable type: 'list' when using built-in set function Posted by: admin April 4, 2018 Leave a comment Python counters on unhashable types Have you ever heard or used python counters ? TypeError: unhashable type: 'list' You can resolve this issue by casting list to tuple . Hello. I've done some simpler scripts in MEL and Python in Maya but I would like to learn more. The key names are “cake” and “sold”. I noticed several other likely problems … http://wiki.nginx.org/HttpRewriteModule#rewrite says: "If you specify a ? In this situation the _input is a list. Our “cakes” list contains three dictionaries. The python error TypeError: unhashable type: ‘dict’ occurs when a dictionary is added in a set or used as a key in another dictionary. I am still learning Python. micseydel Involuntary Spiderweb Collector. Joined: Sep 2016. 0 votes . (11 answers) Create a dictionary in python which is indexed by lists [duplicate] (3 answers) Closed 9 mins ago. What you need is to get just the first item in list, written like so k = list[0]. Solution 2: What it seems like … In simple terms, we term the items whose values cannot be changed as hashable and the objects whose values can be changed as unhashable. >>> d1, d2 = {}, {} >>> d1[d2] = 1 Traceback (most recent call last): File "", line 1, in TypeError: unhashable type: 'dict' You probably meant either for element in referenceElement.keys() or for element in json['referenceElement'].keys(). I'm trying to learn to code. The standard way to solve this issue is to cast a list to a tuple . I’m creating my target dictionary exactly as I have … I noticed several other likely problems … Unsubscribe Subscribe. The only types of values not acceptable as keys are values containing lists or dictionaries or other mutable types that are compared by value rather than by object identity, the reason being that the efficient implementation of dictionaries requires a key’s hash value to remain constant. Asking for help, clarification, or responding to other answers. unhashable type: 'list' -many2many. You’re retrieving two objects from the list. asked Sep 12, 2019 in Python by Sammy (47.8k points) python; Welcome to Intellipaat Community. So the sess.run should have _input[0] (boxes, scores, classes, num_detections) = … 02-25-2013 11:43 AM. Threads: 60. Unhashable type list errors; Options. TypeError: unhashable type: 'set' Find. Let us first understand what is hashable and unhasable. Jump to solution. Python dictionary : TypeError: unhashable type: ‘list’ January 3, 2021 James Cameron. post your actual code. share | improve this question | follow | asked Dec 30 '20 at 6:27. [Sqlalchemy-tickets] Issue #4335: TypeError: unhashable type: 'list' with Oracle Sequence sqlalchemy (zzzeek/sqlalchemy) Each dictionary contains two keys and values. 1. there is a chance of hash changing its data structure since it is mutated which may violate the hashtable invariant. 1 answer. add a comment | 1 Answer Active Oldest Votes. Reply. Python typeerror: unhashable type: 'slice' for encoding categorical data. Contact Information #3940 Sector 23, Gurgaon, Haryana (India) Pin :- 122015. contact@stechies.com -- New TypeError: unhashable type: 'list' """ The above exception was the direct cause of the following exception: Traceback (most recent call last): File "test_program.py", line 41, in train_woe = sc.woebin_ply(train, bins) File "C:\Users\Laurence.Day.conda\envs\scorecard_py_3_5\lib\site-packages\scorecardpy\woebin.py", line 1132, in woebin_ply All categories; Python (2.8k) Java (1.2k) SQL (1.2k) … TypeError: unhashable type: 'list' usually means that you are trying to use a list as an hash argument.The only types of values not acceptable as keys are values containing lists or dictionaries or other mutable types that are compared by value rather than by object identity, the reason being that the efficient implementation of dictionaries requires a key’s hash value to remain constant. The list is an unhashable object. The range function returns a list - lists can't be made hashable (unique items to act as the index in your dict), for example - Not needed to report upstream, this was a Nginx misconfiguration. Mark as New; Bookmark; Subscribe; Mute; Subscribe to RSS Feed; Permalink; … TypeError: unhashable type: 'list' usually means that you are trying to use a list as an hash argument.The only types of values not acceptable as keys are values containing lists or dictionaries or other mutable types that are compared by value rather than by object identity, the reason being that the efficient implementation of dictionaries requires a key’s hash value to remain constant. What you need is to get just the first item in list, written like so k = list[0]. How to overcome TypeError: unhashable type: 'list'As indicated by the other answers, the error is to due to k = list[0:j], where your key is converted to a li Find. if you converted the list to tuple why do you still get unhashable type list error? You can convert your set to a tuple or a frozenset to make it immutable and qualify for being put into a set. May-07-2019, 07:44 PM . They are very useful to count the number of occurrences of “simple” items. Categories. 1 comment Labels. when you use a list as a key in the dictionary , this cannot be done because lists can't be hashed. >>> {"Nina"} {'Nina'} >>> {[]} Traceback (most recent call last): File "", line 1, in TypeError: unhashable type: 'list' sets can be used to de-duplicate the items in a list. Dismiss Join GitHub today. by Anonymous User. But avoid …. Several other likely problems … unhashable type list error and “ sold ” in Maya but I like! Not needed to report upstream, this can not be done because lists ca n't be hashed is! Are very useful to count the number of occurrences of “ simple ” items responding other...: ‘ list ’ Solution by Sammy ( 47.8k points ) python ; 1 Active! 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Please be sure to Answer the question.Provide details and share your research … python dictionary starting from another dictionary sure.