Sometimes, we want to reverse or invert a dictionary mapping with Python.
In this article, we’ll look at how to reverse or invert a dictionary mapping with Python.
How to reverse or invert a dictionary mapping with Python?
To reverse or invert a dictionary mapping with Python, we can use dictionary comprehension.
For instance, we write
inv_map = {v: k for k, v in my_map.items()}
to flip the key k
and value v
with v: k for k, v in my_map.items()
.
We get the key-value pairs with items
.
Conclusion
To reverse or invert a dictionary mapping with Python, we can use dictionary comprehension.