Python drops 🐍💧

Flashcards for visual learners

Past tips

1. Enforce positional arguments
2. Operate on two lists of numbers
3. Using properties
4. Ignore exceptions
5. Paginate results
6. All equal
7. Efficiently extending a list
8. Safely overriding methods
9. Dictionary creation idiom
10. Send data into generators
11. Double leading underscore
12. dict.fromkeys
13. Constant variables
14. Two-dimensional range
15. Type hints that refer to functions
16. Non-greedy regex quantifiers
17. Add typing to decorators
18. Dynamic module attribute look-up
19. map's keyword argument strict
20. Custom enum search behaviour
21. Dunder method __missing__
22. AST parsing
23. Typing *args and **kwargs
24. methods __str__ and __repr__
25. Pretty-printing nested data structures
26. Filtering Truthy values
27. Readable object names
28. Custom containment checks
29. Match word boundaries
30. Common __hash__ implementation
31. Docstring __doc__ attribute
32. Dynamic width string formatting
33. Non-local variables
34. Temporary directories
35. Timestamp file names
36. Preserving decorated function metadata
37. Natural alphabetical sorting
38. Constrained generics
39. Caching sets and frozen sets
40. File modes
41. Add lists together, fast
42. Generics syntax
43. Extracting text data into a dict
44. Verbose regular expressions
45. Structural validation and homogenisation
46. Bulk renaming files
47. Typing overloads
48. Undoable iterator with value history
49. Match an exact dictionary structure
50. Built-in next with a default value
51. Match the structure of custom objects
52. Peek at an iterable
53. Slicing generators for debugging
54. Structural pattern matching with dictionaries
55. File discovery by name pattern
56. Extract assignments from conditionals
57. Regex multiline flag
58. Split strings in two halves
59. Generator recipe
60. Concatenate files from handlers
61. Formatting dates with f-strings
62. Resolving paths
63. Named groups in regex
64. Formatting big numbers
65. One-shot file I/O
66. File tail
67. Idiomatic sequence slicing
68. Subclassing immutable types
69. Underscore in the REPL
70. Ergonomic multiline strings
71. Structural unpacking
72. t-strings need processing
73. Module itertools categorisation
74. Case-insensitive regular expressions
75. String constants
76. Dynamic regex replacements
77. Random choices
78. Redacting email addresses
79. Batching API calls
80. Dot product idiom
81. Counting values that satisfy a predicate
82. Format specifier !r
83. Read files in chunks
84. Bounded cache
85. Longest and shortest
86. OS-agnostic line splitting
87. Automatic enumeration values
88. Global enumeration members
89. Multi-dictionary
90. Typing iterables instead of lists
91. Inline lists and tuples
92. Transpose a list of lists
93. Normalise strings by removing accents
94. Most recently-modified file
95. Enumerations of string values
96. Return value of a generator
97. Use Literal for options
98. Flag enumerations
99. Enforce keyword arguments for options
100. Notify parent class when subclassing
101. Dynamic attribute manipulation
102. Longest word in a string
103. Chain multiple dictionaries
104. Set operations with dict.keys()
105. Current date and time
106. Dunder attribute __file__
107. Self-debugging f-strings
108. Immutable dictionary
109. Create context managers with contextlib.contextmanager
110. Type statements
111. Round to pretty whole numbers
112. Multiple options in a single case statement
113. String prefixes and suffixes
114. Run-length encoding
115. Count characters in a file
116. Remove punctuation from a string
117. map with multiple arguments
118. Schedule cleanup actions
119. Unique elements from a list
120. Last element that satisfies a condition
121. First element that satisfies a condition
122. Parsing integers from different bases
123. Type unions with the vertical bar in isinstance
124. Case-insensitive string comparisons
125. zip's keyword argument strict

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