Open links in new tab
  1. 123

    The keys() method in Python is used to extract the keys of a dictionary and returns them as a view object. This view object reflects any changes made to the dictionary.

    Example

    car = {
    "brand": "Ford",
    "model": "Mustang",
    "year": 1964
    }
    x = car.keys()
    print(x) # Output: dict_keys(['brand', 'model', 'year'])
    Copied!

    Usage

    The keys() method does not take any parameters and is used as follows:

    dict.keys()
    Copied!

    Here, dict is the dictionary whose keys are to be extracted.

    Dynamic Updates

    The view object returned by keys() gets updated if the dictionary is modified.

    car["color"] = "white"
    print(x) # Output: dict_keys(['brand', 'model', 'year', 'color'])
    Copied!

    Practical Application

    You can use the keys in loops or convert them into a list for further operations.

    for key in car.keys():
    print(key)
    # Output:
    # brand
    # model
    # year
    # color

    keys_list = list(car.keys())
    print(keys_list) # Output: ['brand', 'model', 'year', 'color']
    Copied!

    Note: The keys() method provides a dynamic view, meaning any changes to the dictionary will be reflected in the view object.

    Learn more:
    1 -w3schools.com2 -programiz.com3 -geeksforgeeks.org
    What are the characteristics of keys in Python?
    One of the most important characteristics of keys in Python is their uniqueness. Each key in a dictionary must be unique. If you try to add a key that already exists in the dictionary, the new value will overwrite the existing value associated with that key.
    coderivers.org
    GeeksForGeeks
    https://www.geeksforgeeks.org/python/python-dictionary-keys-method
    Python Dictionary keys () method - GeeksforGeeks
  1. W3School
    https://www.w3schools.com › python › ref_dictionary_keys.asp

    Python Dictionary keys () Method - W3Schools

    Definition and Usage The keys() method returns a view object. The view object contains the keys of the dictionary, as a list. The view object will reflect any changes done to the dictionary, see example below.

    • The W3Schools online code editor allows you to edit code and view the result in …

    See results only from w3schools.com
  2. GeeksForGeeks
    https://www.geeksforgeeks.org › python › python-dictionary-keys-method

    Python Dictionary keys () method - GeeksforGeeks

    Feb 17, 2026 · dict.keys () method in Python returns a view object that contains all the keys of the dictionary. The returned object is dynamic, meaning any changes made to the dictionary are …

  3. People also ask
    Unable to load answer

    Feedback
  4. Programiz
    https://www.programiz.com › python-programming › ...

    Python Dictionary keys () (With Examples) - Programiz

    • Output In the above example, we have used the keys()method to extract the keys of the dictionary. The list of keys are returned as a view object. Here, dict_keys() is the view object and ['name', 'age', 'salary'] is the list of keys of the dictionary employee.
    See more on programiz.com
  5. Codegenes
    https://www.codegenes.net › blog › what-does-keys-do-in-python

    Understanding the `.keys ()` Method in Python — codegenes.net

    Jan 16, 2026 · In Python, dictionaries are one of the most powerful and widely used data structures. They allow you to store and retrieve data using key-value pairs. The `.keys ()` method is a built-in …

  6. Python Guides
    https://pythonguides.com › get-keys-of-a-dictionary...

    How To Get Keys Of A Dictionary In Python?

    Feb 18, 2025 · Learn how to get the keys of a dictionary in Python using the `keys ()` method, loops, and list comprehensions to efficiently access and manipulate …

  8. PyTutorial
    https://pytutorial.com › python-dictionary-keys-guide-examples

    Python Dictionary Keys: Guide & Examples - PyTutorial

    Jan 27, 2026 · Learn everything about Python dictionary keys, including creation, access, immutability rules, and key methods for efficient data handling.

  9. Python Software Foundation Wiki
    https://wiki.python.org › python › DictionaryKeys.html

    Valid Python dictionary keys

    Newcomers to Python often wonder why, while the language includes both a tuple and a list type, tuples are usable as dictionary keys, while lists are not. This was a deliberate design decision, and can best …

  10. python-academy.org
    https://python-academy.org › en › handbook › keys

    keys — Python Function Reference

    A comprehensive guide to Python functions, with examples. Find out how the keys function works in Python. Returns a new list of the dictionary's keys.

  11. coderivers.org
    https://coderivers.org › blog › keys-python

    Unlocking the Power of Keys in Python - CodeRivers

    Mar 18, 2025 · This blog post will dive deep into the fundamental concepts of keys in Python, explore different usage methods, discuss common practices, and provide best practices to help you make the …

  12. thelinuxcode.com
    https://thelinuxcode.com › python-dictionary-keys-method-a-complete-guide

    Python Dictionary keys () Method: A Complete Guide

    May 20, 2025 · In this guide, we‘ll explore everything you need to know about the keys() method – from basic usage to advanced techniques that will help you write cleaner, more efficient Python code.

Content was generated with AI. Learn more