my_dict = {'c': 3, 'a': 1, 'b': 2}
sorted_dict = sorted(my_dict.items())
print(sorted_dict)
Output:
[('a', 1), ('b', 2), ('c', 3)]
- Sorting by Values:
To sort a dictionary by its values, you can use the
sorted() function again, but this time you specify a custom key function to sort based on the dictionary's values. Here's an example:
my_dict = {'c': 3, 'a': 1, 'b': 2}
sorted_dict = sorted(my_dict.items(), key=lambda x: x[1])
print(sorted_dict)
Output:
[('a', 1), ('b', 2), ('c', 3)]
In this example, we use a lambda function as the key argument to indicate that we want to sort the dictionary based on the second element of each tuple, which represents the values.
Remember that dictionaries themselves cannot be sorted directly since they are inherently unordered, but you can obtain a sorted representation using one of these methods.
To sort an array of dictionary objects in Python, you can use the sorted() function with a custom key argument. The key argument specifies the function that will be used to determine the sorting order. Here's an example:
my_array = [
{'name': 'John', 'age': 25},
{'name': 'Alice', 'age': 30},
{'name': 'Bob', 'age': 20}
]
sorted_array = sorted(my_array, key=lambda x: x['age'])
print(sorted_array)
Output:
[{'name': 'Bob', 'age': 20}, {'name': 'John', 'age': 25}, {'name': 'Alice', 'age': 30}]
In this example, we sort the my_array list of dictionaries based on the 'age' key. The key lambda function extracts the value of the 'age' key from each dictionary and uses it for sorting.
You can also specify multiple keys for sorting, such as sorting by 'age' and then by 'name'. Here's an example:
my_array = [
{'name': 'John', 'age': 25},
{'name': 'Alice', 'age': 30},
{'name': 'Bob', 'age': 20}
]
sorted_array = sorted(my_array, key=lambda x: (x['age'], x['name']))
print(sorted_array)
Output:
[{'name': 'Bob', 'age': 20}, {'name': 'John', 'age': 25}, {'name': 'Alice', 'age': 30}]
In this case, the lambda function returns a tuple (x['age'], x['name']), which means the array will be sorted by 'age' first, and for items with the same 'age', they will be sorted by 'name'.
Using the sorted() function with a custom key allows you to sort an array of dictionary objects based on specific keys or multiple keys in a desired order.
Happy Learning!! Happy Coding!!
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