dictionary

Recursive diff of two dictionaries (keys and values)?

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So I have a python dictionary, call it d1, and a version of that dictionary at a later point in time, call it d2. I want to find all the changes between d1 and d2. In other words, everything that was added, removed or changed. The tricky bit is that the values can be ints, strings, lists, or dicts, so it needs to be recursive. This is what I have so far:

How can I update an attribute created by a base class’ mutable default argument, without modifying that argument?

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This question already has answers here: Why does using `arg=None` fix Python’s mutable default argument issue? (5 answers) Closed last month. I’ve found a strange issue with subclassing and dictionary updates in new-style classes: Python 2.6.2 (r262:71605, Apr 14 2009, 22:40:02) [MSC v.1500 32 bit (Intel)] on win32 >>> class a(object): … def __init__(self, props={}): … Read more

How do I sort this list in Python, if my date is in a String?

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[{'date': '2010-04-01', 'people': 1047, 'hits': 4522}, {'date': '2010-04-03', 'people': 617, 'hits': 2582}, {'date': '2010-04-02', 'people': 736, 'hits': 3277}] Suppose I have this list. How do I sort by “date”, which is an item in the dictionary. But, “date” is a string… Answers: Thank you for visiting the Q&A section on Magenaut. Please note that all … Read more

Get all keys of a nested dictionary

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I have the below code which currently just prints the values of the initial dictionary. However I would like to iterate through every key of the nested dictionary to initially just print the names. Please see my code below: Liverpool = { 'Keepers':{'Loris Karius':1,'Simon Mignolet':2,'Alex Manninger':3}, 'Defenders':{'Nathaniel Clyne':3,'Dejan Lovren':4,'Joel Matip':5,'Alberto Moreno':6,'Ragnar Klavan':7,'Joe Gomez':8,'Mamadou Sakho':9} } … Read more