Python Tutorials

Overview

There are multiple ways to remove items from a Python dictionary: the pop(), popitem(), and clear() methods, as well as the del keyword.

The pop() Method

The pop() method removes the specified item from the dictionary.

car = {
    "brand": "Maserati",
    "model": "Quattroporte",
    "year": 2025
}

car.pop("model")
print(car)

Output:

{'brand': 'Maserati', 'year': 2025}

The popitem() Method

The popitem() method removes the item that was last inserted into the dictionary. In versions before 3.7, the popitem() method removes a random item.

car = {
    "brand": "Maserati",
    "model": "Quattroporte",
    "year": 2025
}

x = car.popitem()

print(x) #get removed dictionary item as a tuple
print(car) #print dictionary after the item has been removed

Output:

('year', 2025)
{'brand': 'Maserati', 'model': 'Quattroporte'}

The clear() Method

The clear() method removes all the elements from a dictionary.

car =	{
    "brand": "Maserati",
    "model": "Quattroporte",
    "year": 2025
}

car.clear()
print(car)

Output:

{}

The del Keyword

The del keyword removes the item with the specified key name.

car =	{
    "brand": "Maserati",
    "model": "Quattroporte",
    "year": 2025
}

del car["model"]
print(car)

Output:

{'brand': 'Maserati', 'year': 2025}

The del keyword can also delete the dictionary completely.

car =	{
    "brand": "Maserati",
    "model": "Quattroporte",
    "year": 2025
}

del car
print(car) #this will cause an error because the dictionary no longer exists

Output:

Traceback (most recent call last):
    File "./prog.py", line 8, in <module>
NameError: name 'car' is not defined

Python Notes:

  • The most recent major version of Python is Python 3; however, Python 2 is still in use and quite popular, although not being updated with anything other than security updates
  • Python uses new lines to complete a command, as opposed to other programming languages which often use semicolons or parentheses
  • Python relies on indentation, using whitespace to define scope, such as the scope of loops, functions, and classes; other programming languages often use curly-brackets for this purpose
  • Python string methods return new values, and DO NOT change the original string
  • Python tuples are unchangeable after created (their items CANNOT be changed or re-ordered at a later point)
  • Python sets are unordered (may appear in random orders when called), unchangeable (the value of individual items cannot be changed after creation), unindexed (items cannot be referred to by index or key), and duplicates are NOT ALLOWED
  • As of v3.7, Python dictionaries are ordered and duplicates ARE ALLOWED; in v3.6 and earlier, dictionaries were unordered (did not have a defined order and could not be referred to using an index)

We’d like to acknowledge that we learned a great deal of our coding from W3Schools and TutorialsPoint, borrowing heavily from their teaching process and excellent code examples. We highly recommend both sites to deepen your experience, and further your coding journey. We’re just hitting the basics here at 1SMARTchicken.