python append value to dictionary list
import collections
a_dict = collections.defaultdict(list) # a dictionary key --> list (of any stuff)
a_dict["a"].append("hello")
print(a_dict)
>>> defaultdict(<class 'list'>, {'a': ['hello']})
a_dict["a"].append("kite")
print(a_dict)
>>> defaultdict(<class 'list'>, {'a': ['hello', 'kite']})how to add element to list value in a dict python
dates_dict.setdefault(key, []).append(date)Copyright © 2021 Codeinu
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