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 vote151 views1 answer
How to use query_params in get_object djangorestframework
Python Django
0 vote101 views5 answers
Convert c++ code to python
Python
0 vote113 views1 answer
Pyautogui color
Python
4 votes110 views5 answers
Add a new column to numpy array
Python
2 votes112 views2 answers
How to print right angle triangle in python
Python
0 vote104 views1 answer
Optimize images in python using pillow
Python
4 votes108 views1 answer
Python network programming
Python
0 vote153 views1 answer
Python numpy bbox
Python
1 vote65 views1 answer
How to uninstall python idle on ubuntu
Python
29 votes249 views4 answers
Basic flask app python
Python Flask