Invert a dictionary python

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

-2 votes231 views1 answer
How to comment out lines of code in python
Python
0 vote220 views1 answer
Limpiar consola en python
Python
49 votes185 views6 answers
Plot using matplotlib
Python
1 vote200 views1 answer
Python extract name out of mail
Python
89 votes155 views6 answers
Int to string python
Python
5 votes293 views3 answers
Python String and Integer concatenation
Python
1 vote191 views1 answer
Plot_histogram qiskit pycharm
Python
6 votes300 views1 answer
Button in flask
Python Flask
0 vote245 views1 answer
Select values for row matching condition
Python
0 vote198 views1 answer
ApiError('d984ac0ae28d4afda0ddb26e348db535', UploadError('path', UploadWriteFailed(reason=WriteError('malformed_path', None), upload_session_id='AAAAAAAAACLukDh6ck8ZUw'))) python
Python