Difference between dict.clear() and assigning {} in Python

Question

In python, is there a difference between calling clear() and assigning {} to a dictionary? If yes, what is it? Example:

d = {\"stuff\":\"         


        

Answer 1

In addition, sometimes the dict instance might be a subclass of dict (defaultdict for example). In that case, using clear is preferred, as we don't have to remember the exact type of the dict, and also avoid duplicate code (coupling the clearing line with the initialization line).

x = defaultdict(list)
x[1].append(2)
...
x.clear() # instead of the longer x = defaultdict(list)