Python Tutorials

Python Programs

How to Convert a Dictionary to an Array of Key-Value Pairs in Python


How to Convert a Dictionary to an Array of Key-Value Pairs in Python ?

Answer

To convert a dictionary to an array of key-value pairs in Python, you can use the `items()` method of the dictionary and the `list()` function. This allows you to create a list containing all the key-value pairs in the dictionary.



✐ Examples

1 Converting a Dictionary to an Array of Key-Value Pairs Using `items()` and `list()`

We can convert a dictionary to an array of key-value pairs in Python using the `items()` method and the `list()` function. This example demonstrates how to declare and initialize a dictionary, use the `items()` method to get the key-value pairs, convert them to a list, and print the list of key-value pairs.

For example,

  1. We start by declaring and initializing a dictionary named my_dict with integer keys and string values.
  2. We use the `items()` method to get the key-value pairs from the dictionary.
  3. We use the `list()` function to convert the key-value pairs to a list.
  4. We print the list of key-value pairs.

Python Program

my_dict = {
    1: 'One',
    2: 'Two',
    3: 'Three'
}

# Convert the dictionary to an array of key-value pairs
key_value_list = list(my_dict.items())

# Print the list of key-value pairs
print('Array of key-value pairs:')
for key, value in key_value_list:
    print(f'Key: {key}, Value: {value}')

Output

Array of key-value pairs:
Key: 1, Value: One
Key: 2, Value: Two
Key: 3, Value: Three

2 Converting an Empty Dictionary to an Array of Key-Value Pairs

We can convert an empty dictionary to an array of key-value pairs in Python using the `items()` method and the `list()` function. This example demonstrates how to declare and initialize an empty dictionary, use the `items()` method to get the key-value pairs, convert them to a list, and print the list of key-value pairs.

For example,

  1. We start by declaring and initializing an empty dictionary named my_dict.
  2. We use the `items()` method to get the key-value pairs from the dictionary.
  3. We use the `list()` function to convert the key-value pairs to a list.
  4. We print the list of key-value pairs.

Python Program

my_dict = {}

# Convert the dictionary to an array of key-value pairs
key_value_list = list(my_dict.items())

# Print the list of key-value pairs
print('Array of key-value pairs:')
for key, value in key_value_list:
    print(f'Key: {key}, Value: {value}')

Output

Array of key-value pairs:

Summary

In this tutorial, we learned How to Convert a Dictionary to an Array of Key-Value Pairs in Python language with well detailed examples.




More Python Dictionaries Tutorials

  1. How to create an Empty Dictionary in Python ?
  2. How to create a Dictionary with Initial Key-Value Pairs in Python ?
  3. How to Print a Dictionary in Python ?
  4. How to Add a Key-Value Pair to a Dictionary in Python ?
  5. How to Set a Default Value for a Key in a Dictionary in Python ?
  6. How to Update the Value for a Key in a Dictionary in Python ?
  7. How to Check if a Dictionary is Empty in Python ?
  8. How to Check if a Key Exists in a Dictionary in Python ?
  9. How to Check if a Value Exists in a Dictionary in Python ?
  10. How to Get the Value Associated with a Key in a Dictionary in Python ?
  11. How to Remove a Key-Value Pair from a Dictionary in Python ?
  12. How to Remove Key-Value Pairs from a Dictionary Based on Values in Python ?
  13. How to Clear all Key-Value Pairs from a Dictionary in Python ?
  14. How to Iterate over Keys in a Dictionary in Python ?
  15. How to Iterate over Values in a Dictionary in Python ?
  16. How to Iterate over Entries (Key-Value Pairs) in a Dictionary in Python ?
  17. How to Get the Size (Number of Key-Value Pairs) of a Dictionary in Python ?
  18. How to Convert a Dictionary to an Array of Keys in Python ?
  19. How to Convert a Dictionary to an Array of Values in Python ?
  20. How to Convert a Dictionary to an Array of Key-Value Pairs in Python ?
  21. How to Merge Two Dictionaries in Python ?
  22. How to Clone a Dictionary in Python ?
  23. How to Check if Two Dictionaries are Equal in Python ?
  24. How to Sort a Dictionary by Keys in Python ?
  25. How to Sort a Dictionary by Values in Python ?
  26. How to Filter a Dictionary Based on Keys in Python ?
  27. How to Filter a Dictionary Based on Values in Python ?
  28. How to Reduce Values in a Dictionary to a Single Value in Python ?
  29. How to Convert an Array of Key-Value Pairs to a Dictionary in Python ?
  30. How to Convert a Dictionary to a JSON String in Python ?
  31. How to Convert a JSON String to a Dictionary in Python ?
  32. How to Swap Keys and Values in a Dictionary in Python ?
  33. How to Create a Dictionary of Dictionaries in Python ?
  34. How to Iterate Over a Dictionary of Dictionaries in Python ?