How do you add a Dictionary of items into another Dictionary
Arrays in Swift support the += operator to add the contents of one Array to another. Is there an easy way to do … Read more
dictionary
Is the order of iterating through std::map known (and guaranteed by the standard)?
What I mean is – we know that the std::map‘s elements are sorted according to the keys. So, let’s say the keys are … Read more
Loop through Map in Groovy?
I have a very simple task I am trying to do in Groovy but cannot seem to get it to work. I am … Read more
What’s the cleanest way of applying map() to a dictionary in Swift?
I’d like to map a function on all keys in the dictionary. I was hoping something like the following would work, but filter … Read more
Difference between defining typing.Dict and dict?
I am practicing using type hints in Python 3.5. One of my colleague uses typing.Dict: import typing def change_bandwidths(new_bandwidths: typing.Dict, user_id: int, user_name: … Read more
How to merge dictionaries of dictionaries?
I need to merge multiple dictionaries, here’s what I have for instance: dict1 = {1:{“a”:{A}}, 2:{“b”:{B}}} dict2 = {2:{“c”:{C}}, 3:{“d”:{D}} With A B … Read more
Union of dict objects in Python [duplicate]
This question already has answers here: How do I merge two dictionaries in a single expression (take union of dictionaries)? (48 answers) Closed … Read more
Convert a namedtuple into a dictionary
I have a named tuple class in python class Town(collections.namedtuple(‘Town’, [ ‘name’, ‘population’, ‘coordinates’, ‘population’, ‘capital’, ‘state_bird’])): # … I’d like to convert … Read more
Multiple levels of ‘collection.defaultdict’ in Python
Thanks to some great folks on SO, I discovered the possibilities offered by collections.defaultdict, notably in readability and speed. I have put them … Read more
How to print a dictionary line by line in Python?
This is the dictionary cars = {‘A’:{‘speed’:70, ‘color’:2}, ‘B’:{‘speed’:60, ‘color’:3}} Using this for loop for keys,values in cars.items(): print(keys) print(values) It prints the … Read more