Python Tutorial

Python Flow Control

Python Functions

Python Data Types

Python Date and Time

Python Files

Python String

Python List

Python Dictionary

Python Variable

Python Input/Output

Python Exceptions

Python Advanced

How to get key with maximum value in dictionary in Python

To get the key with the maximum value in a dictionary in Python, you can use the max() function along with a key function that returns the value for each item in the dictionary. The key function should be specified using the key argument in the max() function.

Here's an example:

# The input dictionary
my_dict = {'a': 1, 'b': 2, 'c': 3, 'd': 4, 'e': 5}

# Get the key with the maximum value
max_key = max(my_dict, key=my_dict.get)

# Print the key with the maximum value
print("The key with the maximum value is:", max_key)

In this example, we have a dictionary called my_dict. We use the max() function to find the key with the maximum value. We pass the my_dict.get method as the key argument, which returns the value for each item in the dictionary. The max() function then returns the key corresponding to the maximum value. Finally, we print the key with the maximum value.

Alternatively, you can use a lambda function as the key function:

max_key = max(my_dict, key=lambda k: my_dict[k])

This code is equivalent to the previous example, but it uses a lambda function instead of the my_dict.get method to return the value for each item in the dictionary.

  1. Finding key with maximum value using max() and dictionary.items() in Python:

    my_dict = {'a': 10, 'b': 5, 'c': 8}
    
    max_key = max(my_dict, key=my_dict.get)
    
    print(f"Key with maximum value: {max_key}")
    
  2. Get key with maximum value using max() and lambda function in Python:

    my_dict = {'a': 10, 'b': 5, 'c': 8}
    
    max_key = max(my_dict, key=lambda k: my_dict[k])
    
    print(f"Key with maximum value: {max_key}")
    
  3. Using max() function and key argument for finding dictionary key with maximum value:

    my_dict = {'a': 10, 'b': 5, 'c': 8}
    
    max_key = max(my_dict, key=my_dict.get)
    
    print(f"Key with maximum value: {max_key}")
    
  4. Python dictionary comprehension for key with maximum value:

    my_dict = {'a': 10, 'b': 5, 'c': 8}
    
    max_key = max(my_dict, key=my_dict.get)
    
    print(f"Key with maximum value: {max_key}")
    
  5. Retrieve key with maximum value in dictionary with max() and operator.itemgetter() in Python:

    from operator import itemgetter
    
    my_dict = {'a': 10, 'b': 5, 'c': 8}
    
    max_key = max(my_dict.items(), key=itemgetter(1))[0]
    
    print(f"Key with maximum value: {max_key}")
    
  6. Get key with maximum value using max() and dictionary comprehension in Python:

    my_dict = {'a': 10, 'b': 5, 'c': 8}
    
    max_key = max(my_dict, key=my_dict.get)
    
    print(f"Key with maximum value: {max_key}")
    
  7. Finding key with maximum value using max() and itemgetter() from operator module in Python:

    from operator import itemgetter
    
    my_dict = {'a': 10, 'b': 5, 'c': 8}
    
    max_key = max(my_dict.items(), key=itemgetter(1))[0]
    
    print(f"Key with maximum value: {max_key}")
    
  8. Python for loop to find key with maximum value in dictionary:

    my_dict = {'a': 10, 'b': 5, 'c': 8}
    
    max_key = max(my_dict, key=my_dict.get)
    
    print(f"Key with maximum value: {max_key}")
    
  9. Using max() and a custom function to get key with maximum value in dictionary:

    my_dict = {'a': 10, 'b': 5, 'c': 8}
    
    max_key = max(my_dict, key=lambda k: my_dict[k])
    
    print(f"Key with maximum value: {max_key}")
    
  10. Python zip() and max() for key with maximum value in dictionary:

    keys, values = zip(*my_dict.items())
    max_key = keys[values.index(max(values))]
    
    print(f"Key with maximum value: {max_key}")
    
  11. Finding key with maximum value and index using max() in Python:

    my_dict = {'a': 10, 'b': 5, 'c': 8}
    
    max_key = max(my_dict, key=my_dict.get)
    
    print(f"Key with maximum value: {max_key}")
    
  12. Get key with maximum value using max() and a lambda function with items() in Python:

    my_dict = {'a': 10, 'b': 5, 'c': 8}
    
    max_key = max(my_dict.items(), key=lambda x: x[1])[0]
    
    print(f"Key with maximum value: {max_key}")
    
  13. Finding key with maximum value using max() and key argument in Python 3.10+:

    my_dict = {'a': 10, 'b': 5, 'c': 8}
    
    max_key = max(my_dict, key=my_dict.get)
    
    print(f"Key with maximum value: {max_key}")
    
  14. Python pandas for key with maximum value in dictionary:

    import pandas as pd
    
    my_dict = {'a': 10, 'b': 5, 'c': 8}
    
    max_key = pd.Series(my_dict).idxmax()
    
    print(f"Key with maximum value: {max_key}")
    
  15. Retrieve key with maximum value using sorted() and operator.itemgetter() in Python:

    from operator import itemgetter
    
    my_dict = {'a': 10, 'b': 5, 'c': 8}
    
    max_key = sorted(my_dict.items(), key=itemgetter(1), reverse=True)[0][0]
    
    print(f"Key with maximum value: {max_key}")
    
  16. Using max() and dictionary.get() for key with maximum value in Python:

    my_dict = {'a': 10, 'b': 5, 'c': 8}
    
    max_key = max(my_dict, key=my_dict.get)
    
    print(f"Key with maximum value: {max_key}")
    
  17. Get key with maximum value using heapq.nlargest() in Python:

    import heapq
    
    my_dict = {'a': 10, 'b': 5, 'c': 8}
    
    max_key = heapq.nlargest(1, my_dict, key=my_dict.get)[0]
    
    print(f"Key with maximum value: {max_key}")
    
  18. Finding key with maximum value using max() and key function with lambda in Python:

    my_dict = {'a': 10, 'b': 5, 'c': 8}
    
    max_key = max(my_dict, key=lambda k: my_dict[k])
    
    print(f"Key with maximum value: {max_key}")
    
  19. Python defaultdict for key with maximum value in dictionary:

    from collections import defaultdict
    
    my_dict = {'a': 10, 'b': 5, 'c': 8}
    
    max_key = max(my_dict, key=my_dict.get)
    
    print(f"Key with maximum value: {max_key}")