dictionary Questions
4
Solved
I'm new to Python and I was reading about Dictionaries. And from my previous experience with languages like Javascript, they seemed like objects to me. Dictionaries can store lists and share many s...
Allanallana asked 8/1, 2014 at 5:11
2
Solved
How do I express the type of a Dict which has two keys that take two different types of values? For example:
a = {'1': [], '2': {})
The following is just to give you an idea of what I am looking...
Barrio asked 2/1, 2018 at 1:5
6
I am looking at using the ES6 Map object to do my hashing for me, instead of creating a custom hashing function. However, it seems to me that it doesn't have much support for immutability, which is...
Rip asked 15/12, 2018 at 20:6
5
Solved
I've been looking for a way to store and retrieve values on more than the single key that C#'s generic Dictionary class provides.
Searching around the web (and on SO itself) has shown me a couple ...
Prynne asked 10/8, 2012 at 20:44
26
Given:
[
{"name": "Tom", "age": 10},
{"name": "Mark", "age": 5},
{"name": "Pam", "age": 7}
]
How do I s...
Dow asked 28/12, 2011 at 8:25
9
Solved
I am trying to build a heap with a custom sort predicate. Since the values going into it are of "user-defined" type, I cannot modify their built-in comparison predicate.
Is there a way to...
Lester asked 16/1, 2012 at 4:16
46
Solved
If I have an object implementing the Map interface in Java and I wish to iterate over every pair contained within it, what is the most efficient way of going through the map?
Will the ordering of ...
Pesek asked 5/9, 2008 at 21:12
20
Solved
How do I delete an item from a dictionary in Python?
Without modifying the original dictionary, how do I obtain another dict with the item removed?
See also How can I remove a key from a Python di...
Ovoid asked 30/4, 2011 at 21:20
10
Solved
IntelliJ spellchecker comes with only English and Arabic bundled (strange, I think it is made in east Europe, they didn't even bundle their language?).
My customer is German so all my code is mixed...
Zarathustra asked 22/12, 2009 at 23:58
10
Solved
If I have a list of dictionaries, say:
[{'id': 1, 'name': 'paul'},
{'id': 2, 'name': 'john'}]
and I would like to remove the dictionary with id of 2 (or name 'john'), what is the most efficient...
Reba asked 5/8, 2009 at 20:41
4
Solved
This is more of a general, best-practices question.
I've been playing around here and there with JavaScript Maps and have been trying to find more info on whether or not it's considered an anti-pa...
Victorie asked 4/12, 2018 at 4:35
4
Solved
I come from a python world where only hashable objects may be used as keys to a dictionary. Is there a similar restriction in C#? Can you use custom types as dictionary keys?
Sinew asked 6/9, 2013 at 8:19
14
Solved
A frozen set is a frozenset.
A frozen list could be a tuple.
What would a frozen dict be? An immutable, hashable dict.
I guess it could be something like collections.namedtuple, but that is m...
Fahlband asked 24/4, 2010 at 7:19
11
Solved
I want to write a custom class that behaves like dict - so, I am inheriting from dict.
My question, though, is: Do I need to create a private dict member in my __init__() method?. I don't see the ...
Wellfounded asked 25/10, 2010 at 12:42
12
Solved
How do I append one Dictionary to another Dictionary using Swift?
I am using the AlamoFire library to send JSON content to a REST server.
Dictionary 1
var dict1: [String: AnyObject] = [
kFacebook:...
Osvaldooswal asked 4/11, 2014 at 5:43
7
Solved
I have a list of tuples which I want to convert to a Series.
return array2
[(0, 0.07142857142857142),
(0, 0.07142857142857142),
(1, 0.08333333333333333),
(1, 0.3333333333333333),
(1, 0.33333...
Alton asked 18/11, 2018 at 17:34
8
Solved
I need to be able to find an item in a list (an item in this case being a dict) based on some value inside that dict. The structure of the list I need to process looks like this:
[
{
'title': 's...
Institution asked 16/8, 2011 at 13:53
19
Solved
I have a list of dicts, and I'd like to remove the dicts with identical key and value pairs.
For this list: [{'a': 123}, {'b': 123}, {'a': 123}]
I'd like to return this: [{'a': 123}, {'b': 123}]
...
Dc asked 24/2, 2012 at 7:46
10
Solved
I am trying to make a Dictionary lookup table in C#. I need to resolve a 3-tuple of values to one string. I tried using arrays as keys, but that did not work, and I don't know what else to do. At t...
Encrust asked 5/6, 2009 at 13:56
4
Solved
I'm trying to understand some code which is using this class below:
class Base(object):
def __init__(self, **kwargs):
self.client = kwargs.get('client')
self.request = kwargs.get('request')
.....
Ricker asked 6/2, 2020 at 22:33
6
Solved
I have the following dictionary
dict1 ={"city":"","name":"yass","region":"","zipcode":"",
"phone":"","address":"","tehsil":"", "planet":"mars"}
I am trying to create a new dictionary that will ...
Prentice asked 22/5, 2013 at 13:59
6
I have a sqlite database with a table with following columns :
id(int) , name(text) , dob(text)
I want to insert following dictionary to it :
{"id":"100","name":"xyz","dob":"12/12/12"}
Dictio...
Abettor asked 6/6, 2012 at 11:14
8
Solved
I am trying to store an Environment Variable that Python can read in as a Dictionary. If this is a bad idea, please let me know your suggestions, I am eager to learn. I'm worried that if I st...
Pyrogen asked 13/9, 2014 at 18:37
7
This piece of code is giving me an error
TypeError: unhashable type: dict
Can anyone explain to me what the solution is?
negids = movie_reviews.fileids('neg')
def word_feats(words):
return dict([...
Bamford asked 7/11, 2012 at 6:47
21
Solved
I have two dictionaries, and I need to find the difference between the two, which should give me both a key and a value.
I have searched and found some addons/packages like datadiff and dictdiff-ma...
Karyn asked 28/9, 2015 at 4:20
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