Python drops 🐍💧

Flashcards for visual learners

Past tips

1. Non-local variables
2. Temporary directories
3. Timestamp file names
4. Preserving decorated function metadata
5. Natural alphabetical sorting
6. Constrained generics
7. Caching sets and frozen sets
8. File modes
9. Add lists together, fast
10. Generics syntax
11. Extracting text data into a dict
12. Verbose regular expressions
13. Structural validation and homogenisation
14. Bulk renaming files
15. Typing overloads
16. Undoable iterator with value history
17. Match an exact dictionary structure
18. Built-in next with a default value
19. Match the structure of custom objects
20. Peek at an iterable
21. Slicing generators for debugging
22. Structural pattern matching with dictionaries
23. File discovery by name pattern
24. Extract assignments from conditionals
25. Regex multiline flag
26. Split strings in two halves
27. Generator recipe
28. Concatenate files from handlers
29. Formatting dates with f-strings
30. Resolving paths
31. Named groups in regex
32. Formatting big numbers
33. One-shot file I/O
34. File tail
35. Idiomatic sequence slicing
36. Subclassing immutable types
37. Underscore in the REPL
38. Ergonomic multiline strings
39. Structural unpacking
40. t-strings need processing
41. Module itertools categorisation
42. Case-insensitive regular expressions
43. String constants
44. Dynamic regex replacements
45. Random choices
46. Redacting email addresses
47. Batching API calls
48. Dot product idiom
49. Counting values that satisfy a predicate
50. Format specifier !r
51. Read files in chunks
52. Bounded cache
53. Longest and shortest
54. OS-agnostic line splitting
55. Automatic enumeration values
56. Global enumeration members
57. Multi-dictionary
58. Typing iterables instead of lists
59. Inline lists and tuples
60. Transpose a list of lists
61. Normalise strings by removing accents
62. Most recently-modified file
63. Enumerations of string values
64. Return value of a generator
65. Use Literal for options
66. Flag enumerations
67. Enforce keyword arguments for options
68. Notify parent class when subclassing
69. Dynamic attribute manipulation
70. Longest word in a string
71. Chain multiple dictionaries
72. Set operations with dict.keys()
73. Current date and time
74. Dunder attribute __file__
75. Self-debugging f-strings
76. Immutable dictionary
77. Create context managers with contextlib.contextmanager
78. Type statements
79. Round to pretty whole numbers
80. Multiple options in a single case statement
81. String prefixes and suffixes
82. Run-length encoding
83. Count characters in a file
84. Remove punctuation from a string
85. map with multiple arguments
86. Schedule cleanup actions
87. Unique elements from a list
88. Last element that satisfies a condition
89. First element that satisfies a condition
90. Parsing integers from different bases
91. Type unions with the vertical bar in isinstance
92. Case-insensitive string comparisons
93. zip's keyword argument strict

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