Invert dictionary python

inv_map = {v: k for k, v in my_map.items()}

Source: stackoverflow.com

Invert dictionary python

orig = { 1:'A',  2:'B',  3:'C' }
new = dict(zip(orig.values(), orig.keys()))
new == {'A': 1, 'B': 2, 'C': 3} #True

Invert a dictionary python

d = {'a':1, 'b':2, 'c':3}
inverted_d = {}

for k, v in d.items():
  inverted_d[v] = k

How to reverse a dictionary in python

def inverse_dict(my_dict):
    """
    the func get a dictinary and reverse it, the keys become values and the values become keys.
    :param my_dict: the dictinary that need to be reversed.
    :return: a VERY pretty dictionary.
    """
    result_dict = {}
    for key, value in my_dict.items():
        if not value in result_dict.keys():
            result_dict[value] = []
        result_dict[value].append(key)
    return result_dict, print(result_dict)

Similar codes

1 vote163 views1 answer
Numpy unique axis
Python
0 vote232 views1 answer
Indexing python first and last
Python
0 vote244 views1 answer
Iterate over classes in module python
Python
51 votes221 views1 answer
Add new keys to a dictionary python
Python
4 votes156 views3 answers
Matplotlib xticks font size
Python
0 vote182 views1 answer
52277-36880
Python
0 vote166 views1 answer
Print in binary python
Python
0 vote166 views1 answer
Pandas append sheet to workbook
Python
0 vote215 views1 answer
Python Remove all occurrences of a character from a string
Python
7 votes190 views3 answers
Discord.py level system
Python