ordereddictionary

How to compare 2 Ordered Dictionaries and create a new Ordered one with differences? (Python 3.7)

How to compare 2 Ordered Dictionaries and create a new Ordered one with differences? (Python 3.7) Question: I’m struggling on how to generate a "Differences" Ordered-Dictionary containing the Different and also New values appearing on a "Modified" Ordered-Dictionary after comparing with a "Reference" Ordered-Dictionary. EXAMPLE: #python from collections import OrderedDict ref_d = OrderedDict() # REFERENCE …

Total answers: 2

How to access key values of ordered dict in django serializer query

How to access key values of ordered dict in django serializer query Question: I work with Django-Rest api and have serializer that returns me the data like this my_ordered = [OrderedDict([(‘idx’, ‘1231233’), (‘rock’, None), (‘Email’, ‘[email protected]’)]), OrderedDict([(‘idx’, ‘1212333’), (‘paper’, None), (‘Email’, ‘[email protected]’)])] type(my_ordered) <class ‘collections.OrderedDict’> I tried to access its ‘Email’ key like this for …

Total answers: 1

How to reorder the keys of a dictionary?

How to reorder the keys of a dictionary? Question: I have multiple dictionaries inside the list. I want to sort the dictionary with the custom key. In my case, I want to sort it using Date key. By that, I mean to move the Date key to the first position. What is the efficient way …

Total answers: 3

Complexity of deleting a key from python ordered dict

Complexity of deleting a key from python ordered dict Question: Deleting a key from a python dict or defaultdict in python is O(1) operation, as mentioned here and here. To remove a key from OrderedDict, we can either use del d[key] or use popitem() method, as mentioned in the docs. What is the underlying implementation …

Total answers: 1

convert Python list to ordered unique values

convert Python list to ordered unique values Question: I encounter many tasks in which I need to filter python (2.7) list to keep only ordered unique values. My usual approach is by using odereddict from collections: from collections import OrderedDict ls = [1,2,3,4,1,23,4,12,3,41] ls = OrderedDict(zip(ls,[”]*len(ls))).keys() print ls the output is: [1, 2, 3, 4, …

Total answers: 4

Converting a iterable of ordered dict's to pandas dataframe

Converting a iterable of ordered dict's to pandas dataframe Question: I am iterating over OrderedDict’s and want to store them as pandas dataframe. Is there a commend to do that? Currently, the code is: One row in res looks like this: OrderedDict([(‘field_id’, 1), (‘date’, datetime.date(2016, 1, 3)), (‘temp’, 30.08), (‘norm_temperature’, None), (‘prcp’, 12.8848107785339), (‘abcd’, 0.0), …

Total answers: 2

Why are the values of an OrderedDict not equal?

Why are the values of an OrderedDict not equal? Question: With Python 3: >>> from collections import OrderedDict >>> d1 = OrderedDict([(‘foo’, ‘bar’)]) >>> d2 = OrderedDict([(‘foo’, ‘bar’)]) I wanted to check for equality: >>> d1 == d2 True >>> d1.keys() == d2.keys() True But: >>> d1.values() == d2.values() False Do you know why values …

Total answers: 3

Difference between dictionary and OrderedDict

Difference between dictionary and OrderedDict Question: I am trying to get a sorted dictionary. But the order of the items between mydict and orddict doesn’t seem to change. from collections import OrderedDict mydict = {‘a’: 1, ‘b’: 2, ‘c’: 3, ‘d’: 4} orddict = OrderedDict(mydict) print(mydict, orddict) # print items in mydict: print(‘mydict’) for k, …

Total answers: 5

Delete a key and value from an OrderedDict

Delete a key and value from an OrderedDict Question: I am trying to remove a key and value from an OrderedDict but when I use: dictionary.popitem(key) it removes the last key and value even when a different key is supplied. Is it possible to remove a key in the middle if the dictionary? Asked By: …

Total answers: 2

Is it possible to initialize an empty OrderedDict in Python with a predefined sorting mechanism?

Is it possible to initialize an empty OrderedDict in Python with a predefined sorting mechanism? Question: All examples I could find (in the documentation, etc.) define OrderedDicts by passing data to the constructor. From the docs: # regular unsorted dictionary d = {‘banana’: 3, ‘apple’:4, ‘pear’: 1, ‘orange’: 2} # dictionary sorted by key OrderedDict(sorted(d.items(), …

Total answers: 1