reverse dictionary python

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showing results for - "reverse dictionary python"
Isabel
10 Jun 2017
1inv_map = {v: k for k, v in my_map.items()}
Giulio
18 Jan 2017
1inv_map = {v: k for k, v in my_map.items()}
2
Tim
18 May 2020
1>>> a = {0:'000000',1:'11111',3:'333333',4:'444444'}
2>>> a.keys()
3[0, 1, 3, 4]
4>>> sorted(a.keys())
5[0, 1, 3, 4]
6>>> reversed(sorted(a.keys()))
7<listreverseiterator object at 0x02B0DB70>
8>>> list(reversed(sorted(a.keys())))
9[4, 3, 1, 0]
Eric
02 Mar 2020
1inv_map = {v: k for k, v in my_map.iteritems()}
2
Sergio
19 Feb 2017
1def inverse_dict(my_dict):
2    """
3    the func get a dictinary and reverse it, the keys become values and the values become keys.
4    :param my_dict: the dictinary that need to be reversed.
5    :return: a VERY pretty dictionary.
6    """
7    result_dict = {}
8    for key, value in my_dict.items():
9        if not value in result_dict.keys():
10            result_dict[value] = []
11        result_dict[value].append(key)
12    return result_dict, print(result_dict)
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