**How to sort a dictionary: **Dictionaries are the implementation by Python of a data structure associative array. A dictionary is a collection of pairs of key values. A key pair and its associated value represent each key pair.

The list of key value pairs in curly braces that is separated by comma defines a dictionary. Column ‘:’ separates the value of each key.

A dictionary cannot be sorted only to get a representation of the sorted dictionary. Inherently, dictionaries are orderless, but not other types, including lists and tuples. Therefore, you need an ordered data type, which is a listâ€”probably a list of tuples.

In this post, we will look at how to sort a dictionary by key or value

- Python : How to copy a dictionary | Shallow Copy vs Deep Copy
- Python: Iterate Over Dictionary with Index
- Convert Dictionary Values to a List in Python

**Examples:**

### By keys

**Input:**

dictionary = {'this': 200, 'is':100, 'BTechGeeks':300}

**Output:**

BTechGeeks : 300 is : 100 this :200

**Input:**

dictionary = {'this': 100, 'is':200, 'BTechGeeks':300}

**Output:**

is : 100 this : 200 BTechGeeks : 300

## Sort a Dictionary by Key/Value

**Python order dict: **There are several ways to sort a dictionary by key or value some of them are:

- Using items() function
- Using dict.keys() method
- Sorting the dictionary keys in reverse order
- Using sorted() and items() functions to sort dictionary by value
- Using sorted() + items() +reverse() functions to sort dictionary by value in reverse order

### Sort Dictionary by keys:

### Method #1: Using items() function

**How to sort dictionaries in python: **A view object is returned by the items() method. The object view contains the dictionary’s key-value pairs as tuples in a list.

The object displays any modifications made in the dictionary.

**Below is the implementation:**

# Given dictionary dictionary = {'this': 200, 'is': 100, 'BTechGeeks': 300} # convert the dictionary to list using items() dictitems = dictionary.items() # Using sorted() traverse this list for i in sorted(dictitems): # print key and value print(i[0], ":", i[1])

**Output:**

BTechGeeks : 300 is : 100 this :200

### Method #2:Using dict.keys() method

- Convert the keys of the dictionary to list .
- Sort the list .
- Print the corresponding keys and values as you traverse the list.

**Below is the implementation:**

# Given dictionary dictionary = {'this': 200, 'is': 100, 'BTechGeeks': 300} # convert the dictionary to list using dict.keys dictlist = list(dictionary.keys()) # sort the list dictlist.sort() # Print the corresponding key and value by traversing this list for key in dictlist: # print key and value print(key, ":", dictionary[key])

**Output:**

BTechGeeks : 300 is : 100 this :200

### Method #3: Sorting the dictionary keys in reverse order

**How to sort dictionary by value python: **Both of the previous solutions sorted the dictionary ascending orderÂ by key. What if we were to sort the contents by the keys in decreasing order? This can be accomplished by simply passing an attribute to the sorted() function, such as reverse=True.

**Below is the implementation:**

# Given dictionary dictionary = {'this': 200, 'is': 100, 'BTechGeeks': 300} # convert the dictionary to list using items() dictitems = dictionary.items() # Using sorted() traverse this list in descending order for i in sorted(dictitems, reverse=True): # print key and value print(i[0], ":", i[1])

**Output:**

this : 200 is : 100 BTechGeeks : 300

### Sort Dictionary by Values:

### Using sorted() and items() functions to sort dictionary by value

**Sort dictionary keys python: **We’ll use the same sorted() function and transfer a key function that returns the first index element of the tuple, i.e. the value field from the key/value pair, to sort dictionary elements by value.

**Below is the implementation:**

# Given dictionary dictionary = {'this': 200, 'is': 100, 'BTechGeeks': 300} # convert the dictionary to list using items() dictitems = dictionary.items() # Using sorted() traverse this list in # using key to sort by values for i in sorted(dictitems, key=lambda x: x[1]): # print key and value print(i[0], ":", i[1])

**Output:**

is : 100 this : 200 BTechGeeks : 300

### Using sorted() + items() +reverse() functions to sort dictionary by value in reverse order

**Python sorted dict by key: **This can be accomplished by simply passing an attribute to the sorted() function, such as reverse=True.

**Below is the implementation:**

# Given dictionary dictionary = {'this': 200, 'is': 100, 'BTechGeeks': 300} # convert the dictionary to list using items() dictitems = dictionary.items() # Using sorted() traverse this list in # using key to sort by values for i in sorted(dictitems, key=lambda x: x[1], reverse=True): # print key and value print(i[0], ":", i[1])

**Output:**

BTechGeeks : 300 this : 200 is : 100

**Related Programs**:

- python how to check if a key exists in dictionary
- python how to find keys by value in dictionary
- python how to sort a list of tuples by second item
- python sort a dictionary by value
- python how to get all keys with maximum value in a dictionary
- python program to create a dictionary with key as first character and value as words starting with that character
- python program to add a key value pair to the dictionary