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

0 vote231 views1 answer
Pandas df where row has na
Python
0 vote229 views1 answer
Update All Python Packages On Windows
Python
1 vote246 views1 answer
Ses mail name
Python
2 votes218 views1 answer
Remove rows or columns with NaN value
Python
0 vote216 views1 answer
Cv2 read rgb image
Python
57 votes212 views6 answers
Python read lines
Python
0 vote247 views1 answer
'datetime.date' object has no attribute 'split'
Python
10 votes205 views6 answers
How to create a variable in python
Python
4 votes227 views4 answers
Binary to decimal in python
Python
1 vote218 views1 answer
The operands of the logical operators should be boolean expressions, but python is not very strict. any nonzero number is interpreted as true.
Python