How can I merge two Python dictionaries in a single expression, adding up the elements with the same keys in both dicts?
116126
Is there any pythonic way to combine two dicts (adding values for keys that appear in both)?
8901
Appending the same string to a list of strings in Python
20869
What's the Pythonic way to combine two sequences into a dictionary?
143037
How to join objects with Python?
108600
How can I add new keys to a dictionary?
68440
Equating two lists, element by element
7649
Is there a recursive version of the dict.get() built-in?
23418
How do I join two lists in Java?
151233
Why are duplicates not being merged?
97340
From array of dictionaries, make array containing values of one key
133960
Python - sum values in dictionary
80800
How to concatenate items in a list to a single string?
2921
Merge keys array and values array into an object in JavaScript
37779
Simpler way to create dictionary of separate variables?
29762
Creating dictionary using list/tuple elements as key
22621
In Python, how do I iterate over a dictionary in sorted key order?
43789
Add two matrices in python