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Title: 100 Python Interview Questions for 2026 (Ultimate Preparation Guide) - AskPython

Open Graph Title: 100 Python Interview Questions for 2026 (Ultimate Preparation Guide) - AskPython

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Description: In the last few days, I have been finding Python interview questions that can be asked in 2026 interviews. I opened almost every website I could find, read

Open Graph Description: In the last few days, I have been finding Python interview questions that can be asked in 2026 interviews. I opened almost every website I could find, read

X Description: In the last few days, I have been finding Python interview questions that can be asked in 2026 interviews. I opened almost every website I could find, read

Opengraph URL: https://www.askpython.com/python/python-interview-questions

X: @AskPython

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Domain: www.askpython.com


Hey, it has json ld scripts:
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What is a variable in programming","url":"https://www.askpython.com/python/python-interview-questions#6-what-is-a-variable-in-programming"},{"@context":"https://schema.org","@type":"SiteNavigationElement","@id":"#rank-math-toc","name":"7. Explain data types with examples","url":"https://www.askpython.com/python/python-interview-questions#7-explain-data-types-with-examples"},{"@context":"https://schema.org","@type":"SiteNavigationElement","@id":"#rank-math-toc","name":"8. How do you floor a number in Python","url":"https://www.askpython.com/python/python-interview-questions#8-how-do-you-floor-a-number-in-python"},{"@context":"https://schema.org","@type":"SiteNavigationElement","@id":"#rank-math-toc","name":"9. How do you define methods inside a class in Python","url":"https://www.askpython.com/python/python-interview-questions#9-how-do-you-define-methods-inside-a-class-in-python"},{"@context":"https://schema.org","@type":"SiteNavigationElement","@id":"#rank-math-toc","name":"10. How do you create a class in Python","url":"https://www.askpython.com/python/python-interview-questions#10-how-do-you-create-a-class-in-python"},{"@context":"https://schema.org","@type":"SiteNavigationElement","@id":"#rank-math-toc","name":"11. What is the purpose of the self keyword in Python","url":"https://www.askpython.com/python/python-interview-questions#11-what-is-the-purpose-of-the-self-keyword-in-python"},{"@context":"https://schema.org","@type":"SiteNavigationElement","@id":"#rank-math-toc","name":"12. How do you create an object of a class in Python","url":"https://www.askpython.com/python/python-interview-questions#12-how-do-you-create-an-object-of-a-class-in-python"},{"@context":"https://schema.org","@type":"SiteNavigationElement","@id":"#rank-math-toc","name":"Essential Python Data Structures and Collections","url":"https://www.askpython.com/python/python-interview-questions#essential-python-data-structures-and-collections"},{"@context":"https://schema.org","@type":"SiteNavigationElement","@id":"#rank-math-toc","name":"13. What are Python lists and tuples","url":"https://www.askpython.com/python/python-interview-questions#13-what-are-python-lists-and-tuples"},{"@context":"https://schema.org","@type":"SiteNavigationElement","@id":"#rank-math-toc","name":"14. Detail the differences between a list and a tuple","url":"https://www.askpython.com/python/python-interview-questions#14-detail-the-differences-between-a-list-and-a-tuple"},{"@context":"https://schema.org","@type":"SiteNavigationElement","@id":"#rank-math-toc","name":"15. What is the difference between a mutable data type and an immutable data type","url":"https://www.askpython.com/python/python-interview-questions#15-what-is-the-difference-between-a-mutable-data-type-and-an-immutable-data-type"},{"@context":"https://schema.org","@type":"SiteNavigationElement","@id":"#rank-math-toc","name":"16. Why are tuples often preferred over lists in certain situations","url":"https://www.askpython.com/python/python-interview-questions#16-why-are-tuples-often-preferred-over-lists-in-certain-situations"},{"@context":"https://schema.org","@type":"SiteNavigationElement","@id":"#rank-math-toc","name":"17. What happens when you modify a mutable object inside an immutable container","url":"https://www.askpython.com/python/python-interview-questions#17-what-happens-when-you-modify-a-mutable-object-inside-an-immutable-container"},{"@context":"https://schema.org","@type":"SiteNavigationElement","@id":"#rank-math-toc","name":"18. What is a KeyError in Python, and how can you handle it","url":"https://www.askpython.com/python/python-interview-questions#18-what-is-a-key-error-in-python-and-how-can-you-handle-it"},{"@context":"https://schema.org","@type":"SiteNavigationElement","@id":"#rank-math-toc","name":"19. Explain list, dictionary, and tuple comprehension","url":"https://www.askpython.com/python/python-interview-questions#19-explain-list-dictionary-and-tuple-comprehension"},{"@context":"https://schema.org","@type":"SiteNavigationElement","@id":"#rank-math-toc","name":"20. How can you concatenate two lists in Python","url":"https://www.askpython.com/python/python-interview-questions#20-how-can-you-concatenate-two-lists-in-python"},{"@context":"https://schema.org","@type":"SiteNavigationElement","@id":"#rank-math-toc","name":"21. What are Python\u2019s set and frozenset different","url":"https://www.askpython.com/python/python-interview-questions#21-what-are-pythons-set-and-frozenset-different"},{"@context":"https://schema.org","@type":"SiteNavigationElement","@id":"#rank-math-toc","name":"22. What is the difference between shallow copy and deep copy in Python, and when would you use each","url":"https://www.askpython.com/python/python-interview-questions#22-what-is-the-difference-between-shallow-copy-and-deep-copy-in-python-and-when-would-you-use-each"},{"@context":"https://schema.org","@type":"SiteNavigationElement","@id":"#rank-math-toc","name":"Object-Oriented Programming (OOP) Pillars","url":"https://www.askpython.com/python/python-interview-questions#object-oriented-programming-oop-pillars"},{"@context":"https://schema.org","@type":"SiteNavigationElement","@id":"#rank-math-toc","name":"23. What is Object-Oriented Programming (OOP)","url":"https://www.askpython.com/python/python-interview-questions#23-what-is-object-oriented-programming-oop"},{"@context":"https://schema.org","@type":"SiteNavigationElement","@id":"#rank-math-toc","name":"24. 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What is the __init__ method in Python","url":"https://www.askpython.com/python/python-interview-questions#31-what-is-the-init-method-in-python"},{"@context":"https://schema.org","@type":"SiteNavigationElement","@id":"#rank-math-toc","name":"32. What is the difference between instance variables and class variables","url":"https://www.askpython.com/python/python-interview-questions#32-what-is-the-difference-between-instance-variables-and-class-variables"},{"@context":"https://schema.org","@type":"SiteNavigationElement","@id":"#rank-math-toc","name":"Advanced OOP and Dunder Methods (Magic Methods)","url":"https://www.askpython.com/python/python-interview-questions#advanced-oop-and-dunder-methods-magic-methods"},{"@context":"https://schema.org","@type":"SiteNavigationElement","@id":"#rank-math-toc","name":"33. What is the difference between __new__ and __init__","url":"https://www.askpython.com/python/python-interview-questions#33-what-is-the-difference-between-new-and-init"},{"@context":"https://schema.org","@type":"SiteNavigationElement","@id":"#rank-math-toc","name":"34. How does Python implement method resolution order (MRO)","url":"https://www.askpython.com/python/python-interview-questions#34-how-does-python-implement-method-resolution-order-mro"},{"@context":"https://schema.org","@type":"SiteNavigationElement","@id":"#rank-math-toc","name":"35. What is the difference between @property and descriptors","url":"https://www.askpython.com/python/python-interview-questions#35-what-is-the-difference-between-property-and-descriptors"},{"@context":"https://schema.org","@type":"SiteNavigationElement","@id":"#rank-math-toc","name":"36. What is the purpose of the __call__ method, and can it be used to implement function-like objects","url":"https://www.askpython.com/python/python-interview-questions#36-what-is-the-purpose-of-the-call-method-and-can-it-be-used-to-implement-function-like-objects"},{"@context":"https://schema.org","@type":"SiteNavigationElement","@id":"#rank-math-toc","name":"37. What is monkey patching in Python","url":"https://www.askpython.com/python/python-interview-questions#37-what-is-monkey-patching-in-python"},{"@context":"https://schema.org","@type":"SiteNavigationElement","@id":"#rank-math-toc","name":"38. How do you implement the Factory design pattern in Python using OOP","url":"https://www.askpython.com/python/python-interview-questions#38-how-do-you-implement-the-factory-design-pattern-in-python-using-oop"},{"@context":"https://schema.org","@type":"SiteNavigationElement","@id":"#rank-math-toc","name":"39. What are attributes in a class","url":"https://www.askpython.com/python/python-interview-questions#39-what-are-attributes-in-a-class"},{"@context":"https://schema.org","@type":"SiteNavigationElement","@id":"#rank-math-toc","name":"40. What happens if you override __eq__ without __hash__","url":"https://www.askpython.com/python/python-interview-questions#40-what-happens-if-you-override-eq-without-hash"},{"@context":"https://schema.org","@type":"SiteNavigationElement","@id":"#rank-math-toc","name":"41. Explain the use of __del__ and memory management in Python","url":"https://www.askpython.com/python/python-interview-questions#41-explain-the-use-of-del-and-memory-management-in-python"},{"@context":"https://schema.org","@type":"SiteNavigationElement","@id":"#rank-math-toc","name":"42. How does Python implement dynamic dispatch","url":"https://www.askpython.com/python/python-interview-questions#42-how-does-python-implement-dynamic-dispatch"},{"@context":"https://schema.org","@type":"SiteNavigationElement","@id":"#rank-math-toc","name":"Functions, Iterables, and Code Flow Control","url":"https://www.askpython.com/python/python-interview-questions#functions-iterables-and-code-flow-control"},{"@context":"https://schema.org","@type":"SiteNavigationElement","@id":"#rank-math-toc","name":"43. What are conditionals and loops","url":"https://www.askpython.com/python/python-interview-questions#43-what-are-conditionals-and-loops"},{"@context":"https://schema.org","@type":"SiteNavigationElement","@id":"#rank-math-toc","name":"44. What is recursion","url":"https://www.askpython.com/python/python-interview-questions#44-what-is-recursion"},{"@context":"https://schema.org","@type":"SiteNavigationElement","@id":"#rank-math-toc","name":"45. Explain recursion with an example","url":"https://www.askpython.com/python/python-interview-questions#45-explain-recursion-with-an-example"},{"@context":"https://schema.org","@type":"SiteNavigationElement","@id":"#rank-math-toc","name":"46. What is function currying and how can it be implemented in Python","url":"https://www.askpython.com/python/python-interview-questions#46-what-is-function-currying-and-how-can-it-be-implemented-in-python"},{"@context":"https://schema.org","@type":"SiteNavigationElement","@id":"#rank-math-toc","name":"47. Explain higher-order functions with an example","url":"https://www.askpython.com/python/python-interview-questions#47-explain-higher-order-functions-with-an-example"},{"@context":"https://schema.org","@type":"SiteNavigationElement","@id":"#rank-math-toc","name":"48. What are pure functions, and why are they important","url":"https://www.askpython.com/python/python-interview-questions#48-what-are-pure-functions-and-why-are-they-important"},{"@context":"https://schema.org","@type":"SiteNavigationElement","@id":"#rank-math-toc","name":"49. What is the difference between generators and coroutines","url":"https://www.askpython.com/python/python-interview-questions#49-what-is-the-difference-between-generators-and-coroutines"},{"@context":"https://schema.org","@type":"SiteNavigationElement","@id":"#rank-math-toc","name":"50. What is the purpose of yield from","url":"https://www.askpython.com/python/python-interview-questions#50-what-is-the-purpose-of-yield-from"},{"@context":"https://schema.org","@type":"SiteNavigationElement","@id":"#rank-math-toc","name":"51. How would you create a custom iterator in Python, and what are its use cases","url":"https://www.askpython.com/python/python-interview-questions#51-how-would-you-create-a-custom-iterator-in-python-and-what-are-its-use-cases"},{"@context":"https://schema.org","@type":"SiteNavigationElement","@id":"#rank-math-toc","name":"52. How can you introspect a Python function to see its parameters","url":"https://www.askpython.com/python/python-interview-questions#52-how-can-you-introspect-a-python-function-to-see-its-parameters"},{"@context":"https://schema.org","@type":"SiteNavigationElement","@id":"#rank-math-toc","name":"Modules, Packaging, and Handling Exceptions","url":"https://www.askpython.com/python/python-interview-questions#modules-packaging-and-handling-exceptions"},{"@context":"https://schema.org","@type":"SiteNavigationElement","@id":"#rank-math-toc","name":"53. What is monkey patching in Python","url":"https://www.askpython.com/python/python-interview-questions#53-what-is-monkey-patching-in-python"},{"@context":"https://schema.org","@type":"SiteNavigationElement","@id":"#rank-math-toc","name":"54. How does Python\u2019s __import__ function work","url":"https://www.askpython.com/python/python-interview-questions#54-how-does-pythons-import-function-work"},{"@context":"https://schema.org","@type":"SiteNavigationElement","@id":"#rank-math-toc","name":"55. What is the ast module used for","url":"https://www.askpython.com/python/python-interview-questions#55-what-is-the-ast-module-used-for"},{"@context":"https://schema.org","@type":"SiteNavigationElement","@id":"#rank-math-toc","name":"56. What is a metaclass","url":"https://www.askpython.com/python/python-interview-questions#56-what-is-a-metaclass"},{"@context":"https://schema.org","@type":"SiteNavigationElement","@id":"#rank-math-toc","name":"57. When would you use a metaclass in real applications","url":"https://www.askpython.com/python/python-interview-questions#57-when-would-you-use-a-metaclass-in-real-applications"},{"@context":"https://schema.org","@type":"SiteNavigationElement","@id":"#rank-math-toc","name":"58. How are context managers in Python implemented","url":"https://www.askpython.com/python/python-interview-questions#58-how-are-context-managers-in-python-implemented"},{"@context":"https://schema.org","@type":"SiteNavigationElement","@id":"#rank-math-toc","name":"59. What are context managers in Python, and how are they used","url":"https://www.askpython.com/python/python-interview-questions#59-what-are-context-managers-in-python-and-how-are-they-used"},{"@context":"https://schema.org","@type":"SiteNavigationElement","@id":"#rank-math-toc","name":"60. What is the Python \u201cwith\u201d statement designed for","url":"https://www.askpython.com/python/python-interview-questions#60-what-is-the-python-with-statement-designed-for"},{"@context":"https://schema.org","@type":"SiteNavigationElement","@id":"#rank-math-toc","name":"61. Why use else in try/except construct in Python","url":"https://www.askpython.com/python/python-interview-questions#61-why-use-else-in-try-except-construct-in-python"},{"@context":"https://schema.org","@type":"SiteNavigationElement","@id":"#rank-math-toc","name":"62. 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How does the GIL affect multi-threaded programs","url":"https://www.askpython.com/python/python-interview-questions#64-how-does-the-gil-affect-multi-threaded-programs"},{"@context":"https://schema.org","@type":"SiteNavigationElement","@id":"#rank-math-toc","name":"65. How does Python handle memory management, and what role does garbage collection play","url":"https://www.askpython.com/python/python-interview-questions#65-how-does-python-handle-memory-management-and-what-role-does-garbage-collection-play"},{"@context":"https://schema.org","@type":"SiteNavigationElement","@id":"#rank-math-toc","name":"66. How do memory leaks occur in Python","url":"https://www.askpython.com/python/python-interview-questions#66-how-do-memory-leaks-occur-in-python"},{"@context":"https://schema.org","@type":"SiteNavigationElement","@id":"#rank-math-toc","name":"67. What is the purpose of the __slots__ declaration","url":"https://www.askpython.com/python/python-interview-questions#67-what-is-the-purpose-of-the-slots-declaration"},{"@context":"https://schema.org","@type":"SiteNavigationElement","@id":"#rank-math-toc","name":"68. What are the key differences between CPython and PyPy","url":"https://www.askpython.com/python/python-interview-questions#68-what-are-the-key-differences-between-c-python-and-py-py"},{"@context":"https://schema.org","@type":"SiteNavigationElement","@id":"#rank-math-toc","name":"69. Explain how the garbage collector works in Python","url":"https://www.askpython.com/python/python-interview-questions#69-explain-how-the-garbage-collector-works-in-python"},{"@context":"https://schema.org","@type":"SiteNavigationElement","@id":"#rank-math-toc","name":"70. What is the significance of __slots__ in high-performance applications","url":"https://www.askpython.com/python/python-interview-questions#70-what-is-the-significance-of-slots-in-high-performance-applications"},{"@context":"https://schema.org","@type":"SiteNavigationElement","@id":"#rank-math-toc","name":"71. Explain the Python data model and its impact on customization","url":"https://www.askpython.com/python/python-interview-questions#71-explain-the-python-data-model-and-its-impact-on-customization"},{"@context":"https://schema.org","@type":"SiteNavigationElement","@id":"#rank-math-toc","name":"72. What is dependency injection, and how would you implement it in Python","url":"https://www.askpython.com/python/python-interview-questions#72-what-is-dependency-injection-and-how-would-you-implement-it-in-python"},{"@context":"https://schema.org","@type":"SiteNavigationElement","@id":"#rank-math-toc","name":"73. What is the difference between abc.ABC and Protocol from typing","url":"https://www.askpython.com/python/python-interview-questions#73-what-is-the-difference-between-abc-abc-and-protocol-from-typing"},{"@context":"https://schema.org","@type":"SiteNavigationElement","@id":"#rank-math-toc","name":"74. What is the difference between weak references and strong references","url":"https://www.askpython.com/python/python-interview-questions#74-what-is-the-difference-between-weak-references-and-strong-references"},{"@context":"https://schema.org","@type":"SiteNavigationElement","@id":"#rank-math-toc","name":"Concurrency, Parallelism, and Asynchronous Programming","url":"https://www.askpython.com/python/python-interview-questions#concurrency-parallelism-and-asynchronous-programming"},{"@context":"https://schema.org","@type":"SiteNavigationElement","@id":"#rank-math-toc","name":"75. What is the difference between multiprocessing and multithreading in Python","url":"https://www.askpython.com/python/python-interview-questions#75-what-is-the-difference-between-multiprocessing-and-multithreading-in-python"},{"@context":"https://schema.org","@type":"SiteNavigationElement","@id":"#rank-math-toc","name":"76. What is a thread, and how does it differ from a process","url":"https://www.askpython.com/python/python-interview-questions#76-what-is-a-thread-and-how-does-it-differ-from-a-process"},{"@context":"https://schema.org","@type":"SiteNavigationElement","@id":"#rank-math-toc","name":"77. How does concurrency differ from parallelism","url":"https://www.askpython.com/python/python-interview-questions#77-how-does-concurrency-differ-from-parallelism"},{"@context":"https://schema.org","@type":"SiteNavigationElement","@id":"#rank-math-toc","name":"78. 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What is the purpose of contextvars in async code","url":"https://www.askpython.com/python/python-interview-questions#81-what-is-the-purpose-of-contextvars-in-async-code"},{"@context":"https://schema.org","@type":"SiteNavigationElement","@id":"#rank-math-toc","name":"82. How does Python handle tail recursion","url":"https://www.askpython.com/python/python-interview-questions#82-how-does-python-handle-tail-recursion"},{"@context":"https://schema.org","@type":"SiteNavigationElement","@id":"#rank-math-toc","name":"83. How can you speed up numerical computations in Python","url":"https://www.askpython.com/python/python-interview-questions#83-how-can-you-speed-up-numerical-computations-in-python"},{"@context":"https://schema.org","@type":"SiteNavigationElement","@id":"#rank-math-toc","name":"84. How can you profile and optimize Python code","url":"https://www.askpython.com/python/python-interview-questions#84-how-can-you-profile-and-optimize-python-code"},{"@context":"https://schema.org","@type":"SiteNavigationElement","@id":"#rank-math-toc","name":"Algorithms, Data Structures, and Complexity (DSA)","url":"https://www.askpython.com/python/python-interview-questions#algorithms-data-structures-and-complexity-dsa"},{"@context":"https://schema.org","@type":"SiteNavigationElement","@id":"#rank-math-toc","name":"85. What is Big-O notation, and why is it important","url":"https://www.askpython.com/python/python-interview-questions#85-what-is-big-o-notation-and-why-is-it-important"},{"@context":"https://schema.org","@type":"SiteNavigationElement","@id":"#rank-math-toc","name":"86. Explain common Big-O complexities","url":"https://www.askpython.com/python/python-interview-questions#86-explain-common-big-o-complexities"},{"@context":"https://schema.org","@type":"SiteNavigationElement","@id":"#rank-math-toc","name":"87. What is the difference between an array and a linked list","url":"https://www.askpython.com/python/python-interview-questions#87-what-is-the-difference-between-an-array-and-a-linked-list"},{"@context":"https://schema.org","@type":"SiteNavigationElement","@id":"#rank-math-toc","name":"88. What is the difference between a stack and a queue","url":"https://www.askpython.com/python/python-interview-questions#88-what-is-the-difference-between-a-stack-and-a-queue"},{"@context":"https://schema.org","@type":"SiteNavigationElement","@id":"#rank-math-toc","name":"89. Explain how hash tables work","url":"https://www.askpython.com/python/python-interview-questions#89-explain-how-hash-tables-work"},{"@context":"https://schema.org","@type":"SiteNavigationElement","@id":"#rank-math-toc","name":"90. Explain the difference between depth-first search (DFS) and breadth-first search (BFS)","url":"https://www.askpython.com/python/python-interview-questions#90-explain-the-difference-between-depth-first-search-dfs-and-breadth-first-search-bfs"},{"@context":"https://schema.org","@type":"SiteNavigationElement","@id":"#rank-math-toc","name":"91. Explain the concept of memoization with an example","url":"https://www.askpython.com/python/python-interview-questions#91-explain-the-concept-of-memoization-with-an-example"},{"@context":"https://schema.org","@type":"SiteNavigationElement","@id":"#rank-math-toc","name":"92. How does dynamic programming solve the problem of calculating the Fibonacci sequence","url":"https://www.askpython.com/python/python-interview-questions#92-how-does-dynamic-programming-solve-the-problem-of-calculating-the-fibonacci-sequence"},{"@context":"https://schema.org","@type":"SiteNavigationElement","@id":"#rank-math-toc","name":"93. What is the difference between imperative and declarative programming","url":"https://www.askpython.com/python/python-interview-questions#93-what-is-the-difference-between-imperative-and-declarative-programming"},{"@context":"https://schema.org","@type":"SiteNavigationElement","@id":"#rank-math-toc","name":"94. What are the feature selection methods used to select the right variables in data science","url":"https://www.askpython.com/python/python-interview-questions#94-what-are-the-feature-selection-methods-used-to-select-the-right-variables-in-data-science"},{"@context":"https://schema.org","@type":"SiteNavigationElement","@id":"#rank-math-toc","name":"Python Ecosystem, Data Handling, and Optimization","url":"https://www.askpython.com/python/python-interview-questions#python-ecosystem-data-handling-and-optimization"},{"@context":"https://schema.org","@type":"SiteNavigationElement","@id":"#rank-math-toc","name":"95. What is the difference between __new__ and __init__ in the context of singletons","url":"https://www.askpython.com/python/python-interview-questions#95-what-is-the-difference-between-new-and-init-in-the-context-of-singletons"},{"@context":"https://schema.org","@type":"SiteNavigationElement","@id":"#rank-math-toc","name":"96. What is the concept of optimal substructure and overlapping subproblems","url":"https://www.askpython.com/python/python-interview-questions#96-what-is-the-concept-of-optimal-substructure-and-overlapping-subproblems"},{"@context":"https://schema.org","@type":"SiteNavigationElement","@id":"#rank-math-toc","name":"97. What is the significance of Python's Dynamic Typing","url":"https://www.askpython.com/python/python-interview-questions#97-what-is-the-significance-of-pythons-dynamic-typing"},{"@context":"https://schema.org","@type":"SiteNavigationElement","@id":"#rank-math-toc","name":"98. Which Python libraries are most efficient for data processing","url":"https://www.askpython.com/python/python-interview-questions#98-which-python-libraries-are-most-efficient-for-data-processing"},{"@context":"https://schema.org","@type":"SiteNavigationElement","@id":"#rank-math-toc","name":"99. How would you handle a dataset missing several values","url":"https://www.askpython.com/python/python-interview-questions#99-how-would-you-handle-a-dataset-missing-several-values"},{"@context":"https://schema.org","@type":"SiteNavigationElement","@id":"#rank-math-toc","name":"100. How can you cache function calls without using external libraries","url":"https://www.askpython.com/python/python-interview-questions#100-how-can-you-cache-function-calls-without-using-external-libraries"},{"@context":"https://schema.org","@type":"SiteNavigationElement","@id":"#rank-math-toc","name":"Conclusion","url":"https://www.askpython.com/python/python-interview-questions#conclusion"},{"@context":"https://schema.org","@type":"SiteNavigationElement","@id":"#rank-math-toc","name":"References","url":"https://www.askpython.com/python/python-interview-questions#references"}],{"@type":["Person","Organization"],"@id":"https://www.askpython.com/#person","name":"Rnzo1zWtYm","sameAs":["https://twitter.com/AskPython"],"logo":{"@type":"ImageObject","@id":"https://www.askpython.com/#logo","url":"https://www.askpython.com/wp-content/uploads/2019/12/logo.svg","contentUrl":"https://www.askpython.com/wp-content/uploads/2019/12/logo.svg","caption":"Rnzo1zWtYm","inLanguage":"en-US"},"image":{"@type":"ImageObject","@id":"https://www.askpython.com/#logo","url":"https://www.askpython.com/wp-content/uploads/2019/12/logo.svg","contentUrl":"https://www.askpython.com/wp-content/uploads/2019/12/logo.svg","caption":"Rnzo1zWtYm","inLanguage":"en-US"}},{"@type":"WebSite","@id":"https://www.askpython.com/#website","url":"https://www.askpython.com","name":"Rnzo1zWtYm","publisher":{"@id":"https://www.askpython.com/#person"},"inLanguage":"en-US"},{"@type":"ImageObject","@id":"https://www.askpython.com/wp-content/uploads/2025/12/Python-Interview-Questions-1.png","url":"https://www.askpython.com/wp-content/uploads/2025/12/Python-Interview-Questions-1.png","width":"1024","height":"608","caption":"Python Interview Questions","inLanguage":"en-US"},{"@type":"WebPage","@id":"https://www.askpython.com/python/python-interview-questions#webpage","url":"https://www.askpython.com/python/python-interview-questions","name":"100 Python Interview Questions for 2026 (Ultimate Preparation Guide) - AskPython","datePublished":"2025-12-15T12:02:48+00:00","dateModified":"2025-12-15T12:04:21+00:00","isPartOf":{"@id":"https://www.askpython.com/#website"},"primaryImageOfPage":{"@id":"https://www.askpython.com/wp-content/uploads/2025/12/Python-Interview-Questions-1.png"},"inLanguage":"en-US"},{"@type":"Person","@id":"https://www.askpython.com/author/adityagupta","name":"Aditya Gupta","url":"https://www.askpython.com/author/adityagupta","image":{"@type":"ImageObject","@id":"https://secure.gravatar.com/avatar/8a4e66166f05eee51325f67e6222d07f875398ba325e84a9909cf0f07dd8154d?s=96&d=mm&r=g","url":"https://secure.gravatar.com/avatar/8a4e66166f05eee51325f67e6222d07f875398ba325e84a9909cf0f07dd8154d?s=96&d=mm&r=g","caption":"Aditya Gupta","inLanguage":"en-US"}},{"@type":"BlogPosting","headline":"100 Python Interview Questions for 2026 (Ultimate Preparation Guide) - AskPython","keywords":"Python Interview Questions,Python Interview Questions 2026","datePublished":"2025-12-15T12:02:48+00:00","dateModified":"2025-12-15T12:04:21+00:00","author":{"@id":"https://www.askpython.com/author/adityagupta","name":"Aditya Gupta"},"publisher":{"@id":"https://www.askpython.com/#person"},"description":"In the last few days, I have been finding Python interview questions that can be asked in 2026 interviews. 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7 Things Students Should Know Before Learning Pythonhttps://www.askpython.com/resources/things-students-should-know-before-learning-python
Python Core Fundamentals and Syntaxhttps://www.askpython.com/python/python-interview-questions#python-core-fundamentals-and-syntax
1. What is Python, and list some of its key featureshttps://www.askpython.com/python/python-interview-questions#1-what-is-python-and-list-some-of-its-key-features
2. Explain the difference between compiled and interpreted languageshttps://www.askpython.com/python/python-interview-questions#2-explain-the-difference-between-compiled-and-interpreted-languages
3. Is Python a compiled language or an interpreted languagehttps://www.askpython.com/python/python-interview-questions#3-is-python-a-compiled-language-or-an-interpreted-language
4. Is Indentation Required in Pythonhttps://www.askpython.com/python/python-interview-questions#4-is-indentation-required-in-python
5. What is the difference between / and // in Pythonhttps://www.askpython.com/python/python-interview-questions#5-what-is-the-difference-between-and-in-python
6. What is a variable in programminghttps://www.askpython.com/python/python-interview-questions#6-what-is-a-variable-in-programming
7. Explain data types with exampleshttps://www.askpython.com/python/python-interview-questions#7-explain-data-types-with-examples
8. How do you floor a number in Pythonhttps://www.askpython.com/python/python-interview-questions#8-how-do-you-floor-a-number-in-python
9. How do you define methods inside a class in Pythonhttps://www.askpython.com/python/python-interview-questions#9-how-do-you-define-methods-inside-a-class-in-python
10. How do you create a class in Pythonhttps://www.askpython.com/python/python-interview-questions#10-how-do-you-create-a-class-in-python
11. What is the purpose of the self keyword in Pythonhttps://www.askpython.com/python/python-interview-questions#11-what-is-the-purpose-of-the-self-keyword-in-python
12. How do you create an object of a class in Pythonhttps://www.askpython.com/python/python-interview-questions#12-how-do-you-create-an-object-of-a-class-in-python
Essential Python Data Structures and Collectionshttps://www.askpython.com/python/python-interview-questions#essential-python-data-structures-and-collections
13. What are Python lists and tupleshttps://www.askpython.com/python/python-interview-questions#13-what-are-python-lists-and-tuples
14. Detail the differences between a list and a tuplehttps://www.askpython.com/python/python-interview-questions#14-detail-the-differences-between-a-list-and-a-tuple
15. What is the difference between a mutable data type and an immutable data typehttps://www.askpython.com/python/python-interview-questions#15-what-is-the-difference-between-a-mutable-data-type-and-an-immutable-data-type
16. Why are tuples often preferred over lists in certain situationshttps://www.askpython.com/python/python-interview-questions#16-why-are-tuples-often-preferred-over-lists-in-certain-situations
17. What happens when you modify a mutable object inside an immutable containerhttps://www.askpython.com/python/python-interview-questions#17-what-happens-when-you-modify-a-mutable-object-inside-an-immutable-container
18. What is a KeyError in Python, and how can you handle ithttps://www.askpython.com/python/python-interview-questions#18-what-is-a-key-error-in-python-and-how-can-you-handle-it
19. Explain list, dictionary, and tuple comprehensionhttps://www.askpython.com/python/python-interview-questions#19-explain-list-dictionary-and-tuple-comprehension
20. How can you concatenate two lists in Pythonhttps://www.askpython.com/python/python-interview-questions#20-how-can-you-concatenate-two-lists-in-python
21. What are Python’s set and frozenset differenthttps://www.askpython.com/python/python-interview-questions#21-what-are-pythons-set-and-frozenset-different
22. What is the difference between shallow copy and deep copy in Python, and when would you use eachhttps://www.askpython.com/python/python-interview-questions#22-what-is-the-difference-between-shallow-copy-and-deep-copy-in-python-and-when-would-you-use-each
Object-Oriented Programming (OOP) Pillarshttps://www.askpython.com/python/python-interview-questions#object-oriented-programming-oop-pillars
23. What is Object-Oriented Programming (OOP)https://www.askpython.com/python/python-interview-questions#23-what-is-object-oriented-programming-oop
24. What are the four pillars of OOPhttps://www.askpython.com/python/python-interview-questions#24-what-are-the-four-pillars-of-oop
25. Explain the concept of classes and objects in Pythonhttps://www.askpython.com/python/python-interview-questions#25-explain-the-concept-of-classes-and-objects-in-python
26. Explain Encapsulation and why it is important in OOPhttps://www.askpython.com/python/python-interview-questions#26-explain-encapsulation-and-why-it-is-important-in-oop
27. Explain Inheritance in Python OOPhttps://www.askpython.com/python/python-interview-questions#27-explain-inheritance-in-python-oop
28. Explain Polymorphism and how is it implemented in Pythonhttps://www.askpython.com/python/python-interview-questions#28-explain-polymorphism-and-how-is-it-implemented-in-python
29. What is Abstraction in OOPhttps://www.askpython.com/python/python-interview-questions#29-what-is-abstraction-in-oop
30. What is a constructor in Pythonhttps://www.askpython.com/python/python-interview-questions#30-what-is-a-constructor-in-python
31. What is the __init__ method in Pythonhttps://www.askpython.com/python/python-interview-questions#31-what-is-the-init-method-in-python
32. What is the difference between instance variables and class variableshttps://www.askpython.com/python/python-interview-questions#32-what-is-the-difference-between-instance-variables-and-class-variables
Advanced OOP and Dunder Methods (Magic Methods)https://www.askpython.com/python/python-interview-questions#advanced-oop-and-dunder-methods-magic-methods
33. What is the difference between __new__ and __init__https://www.askpython.com/python/python-interview-questions#33-what-is-the-difference-between-new-and-init
34. How does Python implement method resolution order (MRO)https://www.askpython.com/python/python-interview-questions#34-how-does-python-implement-method-resolution-order-mro
35. What is the difference between @property and descriptorshttps://www.askpython.com/python/python-interview-questions#35-what-is-the-difference-between-property-and-descriptors
36. What is the purpose of the __call__ method, and can it be used to implement function-like objectshttps://www.askpython.com/python/python-interview-questions#36-what-is-the-purpose-of-the-call-method-and-can-it-be-used-to-implement-function-like-objects
37. What is monkey patching in Pythonhttps://www.askpython.com/python/python-interview-questions#37-what-is-monkey-patching-in-python
38. How do you implement the Factory design pattern in Python using OOPhttps://www.askpython.com/python/python-interview-questions#38-how-do-you-implement-the-factory-design-pattern-in-python-using-oop
39. What are attributes in a classhttps://www.askpython.com/python/python-interview-questions#39-what-are-attributes-in-a-class
40. What happens if you override __eq__ without __hash__https://www.askpython.com/python/python-interview-questions#40-what-happens-if-you-override-eq-without-hash
41. Explain the use of __del__ and memory management in Pythonhttps://www.askpython.com/python/python-interview-questions#41-explain-the-use-of-del-and-memory-management-in-python
42. How does Python implement dynamic dispatchhttps://www.askpython.com/python/python-interview-questions#42-how-does-python-implement-dynamic-dispatch
Functions, Iterables, and Code Flow Controlhttps://www.askpython.com/python/python-interview-questions#functions-iterables-and-code-flow-control
43. What are conditionals and loopshttps://www.askpython.com/python/python-interview-questions#43-what-are-conditionals-and-loops
44. What is recursionhttps://www.askpython.com/python/python-interview-questions#44-what-is-recursion
45. Explain recursion with an examplehttps://www.askpython.com/python/python-interview-questions#45-explain-recursion-with-an-example
46. What is function currying and how can it be implemented in Pythonhttps://www.askpython.com/python/python-interview-questions#46-what-is-function-currying-and-how-can-it-be-implemented-in-python
47. Explain higher-order functions with an examplehttps://www.askpython.com/python/python-interview-questions#47-explain-higher-order-functions-with-an-example
48. What are pure functions, and why are they importanthttps://www.askpython.com/python/python-interview-questions#48-what-are-pure-functions-and-why-are-they-important
49. What is the difference between generators and coroutineshttps://www.askpython.com/python/python-interview-questions#49-what-is-the-difference-between-generators-and-coroutines
50. What is the purpose of yield fromhttps://www.askpython.com/python/python-interview-questions#50-what-is-the-purpose-of-yield-from
51. How would you create a custom iterator in Python, and what are its use caseshttps://www.askpython.com/python/python-interview-questions#51-how-would-you-create-a-custom-iterator-in-python-and-what-are-its-use-cases
52. How can you introspect a Python function to see its parametershttps://www.askpython.com/python/python-interview-questions#52-how-can-you-introspect-a-python-function-to-see-its-parameters
Modules, Packaging, and Handling Exceptionshttps://www.askpython.com/python/python-interview-questions#modules-packaging-and-handling-exceptions
53. What is monkey patching in Pythonhttps://www.askpython.com/python/python-interview-questions#53-what-is-monkey-patching-in-python
54. How does Python’s __import__ function workhttps://www.askpython.com/python/python-interview-questions#54-how-does-pythons-import-function-work
55. What is the ast module used forhttps://www.askpython.com/python/python-interview-questions#55-what-is-the-ast-module-used-for
56. What is a metaclasshttps://www.askpython.com/python/python-interview-questions#56-what-is-a-metaclass
57. When would you use a metaclass in real applicationshttps://www.askpython.com/python/python-interview-questions#57-when-would-you-use-a-metaclass-in-real-applications
58. How are context managers in Python implementedhttps://www.askpython.com/python/python-interview-questions#58-how-are-context-managers-in-python-implemented
59. What are context managers in Python, and how are they usedhttps://www.askpython.com/python/python-interview-questions#59-what-are-context-managers-in-python-and-how-are-they-used
60. What is the Python “with” statement designed forhttps://www.askpython.com/python/python-interview-questions#60-what-is-the-python-with-statement-designed-for
61. Why use else in try/except construct in Pythonhttps://www.askpython.com/python/python-interview-questions#61-why-use-else-in-try-except-construct-in-python
62. What are some pitfalls of using eval()https://www.askpython.com/python/python-interview-questions#62-what-are-some-pitfalls-of-using-eval
Memory Management and Advanced Language Internalshttps://www.askpython.com/python/python-interview-questions#memory-management-and-advanced-language-internals
63. What is the Global Interpreter Lock (GIL) in Python, and why is it importanthttps://www.askpython.com/python/python-interview-questions#63-what-is-the-global-interpreter-lock-gil-in-python-and-why-is-it-important
64. How does the GIL affect multi-threaded programshttps://www.askpython.com/python/python-interview-questions#64-how-does-the-gil-affect-multi-threaded-programs
65. How does Python handle memory management, and what role does garbage collection playhttps://www.askpython.com/python/python-interview-questions#65-how-does-python-handle-memory-management-and-what-role-does-garbage-collection-play
66. How do memory leaks occur in Pythonhttps://www.askpython.com/python/python-interview-questions#66-how-do-memory-leaks-occur-in-python
67. What is the purpose of the __slots__ declarationhttps://www.askpython.com/python/python-interview-questions#67-what-is-the-purpose-of-the-slots-declaration
68. What are the key differences between CPython and PyPyhttps://www.askpython.com/python/python-interview-questions#68-what-are-the-key-differences-between-c-python-and-py-py
69. Explain how the garbage collector works in Pythonhttps://www.askpython.com/python/python-interview-questions#69-explain-how-the-garbage-collector-works-in-python
70. What is the significance of __slots__ in high-performance applicationshttps://www.askpython.com/python/python-interview-questions#70-what-is-the-significance-of-slots-in-high-performance-applications
71. Explain the Python data model and its impact on customizationhttps://www.askpython.com/python/python-interview-questions#71-explain-the-python-data-model-and-its-impact-on-customization
72. What is dependency injection, and how would you implement it in Pythonhttps://www.askpython.com/python/python-interview-questions#72-what-is-dependency-injection-and-how-would-you-implement-it-in-python
73. What is the difference between abc.ABC and Protocol from typinghttps://www.askpython.com/python/python-interview-questions#73-what-is-the-difference-between-abc-abc-and-protocol-from-typing
74. What is the difference between weak references and strong referenceshttps://www.askpython.com/python/python-interview-questions#74-what-is-the-difference-between-weak-references-and-strong-references
Concurrency, Parallelism, and Asynchronous Programminghttps://www.askpython.com/python/python-interview-questions#concurrency-parallelism-and-asynchronous-programming
75. What is the difference between multiprocessing and multithreading in Pythonhttps://www.askpython.com/python/python-interview-questions#75-what-is-the-difference-between-multiprocessing-and-multithreading-in-python
76. What is a thread, and how does it differ from a processhttps://www.askpython.com/python/python-interview-questions#76-what-is-a-thread-and-how-does-it-differ-from-a-process
77. How does concurrency differ from parallelismhttps://www.askpython.com/python/python-interview-questions#77-how-does-concurrency-differ-from-parallelism
78. How do you prevent race conditions in async codehttps://www.askpython.com/python/python-interview-questions#78-how-do-you-prevent-race-conditions-in-async-code
79. What’s the benefit of immutability in concurrent programshttps://www.askpython.com/python/python-interview-questions#79-whats-the-benefit-of-immutability-in-concurrent-programs
80. Explain the difference between synchronous and asynchronous programminghttps://www.askpython.com/python/python-interview-questions#80-explain-the-difference-between-synchronous-and-asynchronous-programming
81. What is the purpose of contextvars in async codehttps://www.askpython.com/python/python-interview-questions#81-what-is-the-purpose-of-contextvars-in-async-code
82. How does Python handle tail recursionhttps://www.askpython.com/python/python-interview-questions#82-how-does-python-handle-tail-recursion
83. How can you speed up numerical computations in Pythonhttps://www.askpython.com/python/python-interview-questions#83-how-can-you-speed-up-numerical-computations-in-python
84. How can you profile and optimize Python codehttps://www.askpython.com/python/python-interview-questions#84-how-can-you-profile-and-optimize-python-code
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85. What is Big-O notation, and why is it importanthttps://www.askpython.com/python/python-interview-questions#85-what-is-big-o-notation-and-why-is-it-important
86. Explain common Big-O complexitieshttps://www.askpython.com/python/python-interview-questions#86-explain-common-big-o-complexities
87. What is the difference between an array and a linked listhttps://www.askpython.com/python/python-interview-questions#87-what-is-the-difference-between-an-array-and-a-linked-list
88. What is the difference between a stack and a queuehttps://www.askpython.com/python/python-interview-questions#88-what-is-the-difference-between-a-stack-and-a-queue
89. Explain how hash tables workhttps://www.askpython.com/python/python-interview-questions#89-explain-how-hash-tables-work
90. Explain the difference between depth-first search (DFS) and breadth-first search (BFS)https://www.askpython.com/python/python-interview-questions#90-explain-the-difference-between-depth-first-search-dfs-and-breadth-first-search-bfs
91. Explain the concept of memoization with an examplehttps://www.askpython.com/python/python-interview-questions#91-explain-the-concept-of-memoization-with-an-example
92. How does dynamic programming solve the problem of calculating the Fibonacci sequencehttps://www.askpython.com/python/python-interview-questions#92-how-does-dynamic-programming-solve-the-problem-of-calculating-the-fibonacci-sequence
93. What is the difference between imperative and declarative programminghttps://www.askpython.com/python/python-interview-questions#93-what-is-the-difference-between-imperative-and-declarative-programming
94. What are the feature selection methods used to select the right variables in data sciencehttps://www.askpython.com/python/python-interview-questions#94-what-are-the-feature-selection-methods-used-to-select-the-right-variables-in-data-science
Python Ecosystem, Data Handling, and Optimizationhttps://www.askpython.com/python/python-interview-questions#python-ecosystem-data-handling-and-optimization
95. What is the difference between __new__ and __init__ in the context of singletonshttps://www.askpython.com/python/python-interview-questions#95-what-is-the-difference-between-new-and-init-in-the-context-of-singletons
96. What is the concept of optimal substructure and overlapping subproblemshttps://www.askpython.com/python/python-interview-questions#96-what-is-the-concept-of-optimal-substructure-and-overlapping-subproblems
97. What is the significance of Python’s Dynamic Typinghttps://www.askpython.com/python/python-interview-questions#97-what-is-the-significance-of-pythons-dynamic-typing
98. Which Python libraries are most efficient for data processinghttps://www.askpython.com/python/python-interview-questions#98-which-python-libraries-are-most-efficient-for-data-processing
99. How would you handle a dataset missing several valueshttps://www.askpython.com/python/python-interview-questions#99-how-would-you-handle-a-dataset-missing-several-values
100. How can you cache function calls without using external librarieshttps://www.askpython.com/python/python-interview-questions#100-how-can-you-cache-function-calls-without-using-external-libraries
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