Python Interview Questions
Data structures, decorators, generators, the GIL, OOP, scope and memory management.
61 questions
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1. What is Python and Why is it Popular?
easyFundamentals 5 mins2. Difference Between List and Tuple in Python
easyData Structures 5 mins3. How Do Dictionaries Work in Python?
easyData Structures 5 mins4. Mutable vs Immutable Objects in Python
mediumCore 6 mins5. What is List Comprehension in Python?
easyCore 5 mins6. What are Decorators in Python?
hardFunctions 8 mins7. What are Generators and the yield Keyword?
mediumFunctions 6 mins8. What are *args and **kwargs in Python?
easyFunctions 5 mins9. What are Lambda Functions in Python?
easyFunctions 5 mins10. What is the Global Interpreter Lock (GIL) in Python?
hardAdvanced 7 mins11. Deep Copy vs Shallow Copy in Python
mediumCore 6 mins12. Difference Between is and == in Python
easyCore 5 mins13. What is the LEGB Rule (Scope) in Python?
mediumCore 6 mins14. How Does Exception Handling Work in Python?
easyCore 5 mins15. What are Context Managers and the with Statement?
mediumCore 6 mins16. What are Iterators in Python?
mediumCore 6 mins17. How Does Slicing Work in Python?
easyCore 5 mins18. Static Methods vs Class Methods in Python
mediumOOP 6 mins19. How Does Inheritance Work in Python?
mediumOOP 7 mins20. What is the self Keyword in Python?
easyOOP 6 mins21. What is the __init__ Method in Python?
easyOOP 6 mins22. What is Duck Typing in Python?
mediumOOP 6 mins23. What are Virtual Environments in Python?
easyTooling 5 mins24. What are f-strings in Python?
easyCore 5 mins25. Global vs Local Variables in Python
easyCore 6 mins26. How Do Sets Work in Python?
easyData Structures 6 mins27. How Do map, filter and reduce Work in Python?
mediumFunctions 7 mins28. Multithreading vs Multiprocessing in Python
hardAdvanced 7 mins29. What Does if __name__ == '__main__' Mean?
easyCore 5 mins30. How Does Memory Management Work in Python?
hardAdvanced 7 mins31. What are Python Data Types?
easyFundamentals 6 mins32. List vs Tuple: What is the Difference?
easyFundamentals 5 mins33. What is a Dictionary in Python?
easyFundamentals 6 mins34. What are List Comprehensions in Python?
easyFundamentals 5 mins35. What is PEP 8?
easyFundamentals 5 mins36. What are *args and **kwargs in Python?
easyFunctions 5 mins37. What is a Decorator in Python?
easyFunctions 6 mins38. What is a Generator in Python?
easyFunctions 6 mins39. Difference Between Deep Copy and Shallow Copy in Python
mediumMemory & Objects 6 mins40. What is the GIL (Global Interpreter Lock) in Python?
mediumConcurrency 7 mins41. What are Lambda Functions in Python?
mediumFunctions 6 mins42. How is Memory Managed in Python?
mediumMemory & Objects 7 mins43. What Is the Difference Between a Python Module and a Package?
mediumFundamentals 5 mins44. How Does Exception Handling Work in Python?
mediumControl Flow 6 mins45. What Is a Context Manager in Python?
mediumFundamentals 6 mins46. What Is the Difference Between Mutable and Immutable Types in Python?
mediumData Types 6 mins47. What Is List Slicing in Python and How Does It Work?
mediumData Structures 5 mins48. What Is __init__ in Python Classes?
mediumObject-Oriented Programming 5 mins49. What Are Iterators in Python and How Do They Work?
hardAdvanced Concepts 7 mins50. What Is pip and How Does It Manage Python Packages?
hardTooling 6 mins51. What Is a Virtual Environment in Python and Why Use One?
hardTooling 6 mins52. What Is Pickling in Python and When Should You Use It?
hardAdvanced Concepts 6 mins53. What Are Namespaces in Python and Why Do They Matter?
hardAdvanced Concepts 6 mins54. What Is Monkey Patching in Python and When Is It Appropriate?
hardAdvanced Concepts 6 mins55. How Do Descriptors Work, and What Is property() Actually Doing?
hardObject Model 9 mins56. How Does Python's Method Resolution Order Work and What Makes super() Cooperative?
hardObject Model 9 mins57. What Does __slots__ Do, and When Is It Worth Using?
hardPerformance 8 mins58. How Does the Context Manager Protocol Handle Exceptions, and When Does __exit__ Suppress Them?
hardLanguage Internals 9 mins59. How Do Weak References and the Cyclic Garbage Collector Work Together in Python?
hardMemory Management 10 mins60. What Are the Common Import System Pitfalls: Namespace Packages, Circular Imports and Editable Installs?
hardPackaging 10 mins61. How Do You Profile a Slow Python Script and Tell CPU-Bound From IO-Bound Work?
hardPerformance 10 mins