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Master Python

114

TOPICS

13

SECTIONS

SKILL MASTERY

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114 skills · 165 questions

All Skills

All

114 core skills 100% total weight

01

Big-O for Lists & Dicts

02

Pythonic Optimizations

03

Recognizing Optimization Needs

04

Recursion Depth Limits

05

Tracing Recursion

06

Writing Recursive Functions

07

Binary Search & bisect

08

09

sorted() with Key Functions

10

11

dict.get() & Missing Keys

12

Dictionary Creation & Access

13

Frequency Counting with Dicts

14

15

Sets for Membership & Duplicates

16

List Comprehensions

17

18

Lists vs. Tuples

19

Sorting with Key Functions

20

Common String Methods

21

f-Strings & Formatting

22

Parsing Structured Text

23

String Indexing & Slicing

24

Avoiding Conditional Bugs

25

Boolean Expressions

26

Conditional Expressions (Ternary)

27

If/Elif/Else Statements

28

Break & Continue

29

30

31

32

33

collections.deque

34

35

36

BFS/DFS Traversal

37

Graph Representation

38

Tracking Visited Nodes

39

Tree Representation

40

Common Python Errors

41

Interpreting Tracebacks

42

pdb & IDE Debugging

43

Print Debugging

44

Designing Edge Case Tests

45

Deterministic vs. Non-Deterministic Tests

46

unittest Framework

47

Writing Unit Tests

48

*args & **kwargs

49

Default Arguments & Mutable Defaults

50

Defining Functions

51

Docstrings & Type Hints

52

Positional vs. Keyword Arguments

53

Avoiding Circular Imports

54

Importing Modules

55

Organizing Modules & Packages

56

Scope: Local, Global & nonlocal

57

Modules vs. Scripts

58

pip & Package Installation

59

60

Running Python Scripts

61

Virtual Environments (venv)

62

63

Resolving Merge Conflicts

64

Using .gitignore

65

66

Reading Files with Context Managers

67

Reading User Input

68

69

70

Inheritance & Method Overriding

71

Special Methods (Dunder Methods)

72

__init__ & Constructors

73

Class vs. Instance Attributes

74

Defining Classes

75

Instance Attributes & Methods

76

Counting with dict/Counter

77

78

Sorting + Scanning

79

Two Pointers & Sliding Window

80

Common Python Edge Cases

81

Handling Empty Inputs

82

Input Validation

83

Context Managers (with)

84

Custom Exceptions

85

Raising Exceptions

86

Try/Except/Else/Finally

87

88

Generator Functions (yield)

89

Generator vs. List Comprehensions

90

Iterables & Iterators

91

datetime Module

92

93

math & random Modules

94

95

Explaining Code Behavior

96

Function Contracts & Invariants

97

Solution Tradeoffs

98

Code Clarity & Naming

99

Docstrings & Comments

100

PEP 8 Conventions

101

102

103

104

Type Conversion

105

Understanding TypeErrors

106

Arithmetic Operators & Precedence

107

Comparison Operators & Chaining

108

Logical Operators & Truthiness

109

Membership Operators

110

Modulo & Integer Division

111

112

Mutability vs. Reassignment

113

Tuple Unpacking & Multiple Assignment

114

Variable Assignment & snake_case