Python snippets that still pass.https://fluttersmith.github.io/https://fluttersmith.github.io/py-snippets/s/bifurcate-by/https://fluttersmith.github.io/py-snippets/s/bifurcate-by/Partition items into those that pass a test and those that don't, in one pass.Thu, 01 Oct 2026 00:00:00 GMTlistssplittinghttps://fluttersmith.github.io/py-snippets/s/chunk-into-n/https://fluttersmith.github.io/py-snippets/s/chunk-into-n/Split a sequence into exactly n lists whose sizes differ by at most one.Thu, 01 Oct 2026 00:00:00 GMTlistssplittinghttps://fluttersmith.github.io/py-snippets/s/count-by/https://fluttersmith.github.io/py-snippets/s/count-by/Count how many items map to each key, using collections.Counter.Thu, 01 Oct 2026 00:00:00 GMTlistscountinggroupinghttps://fluttersmith.github.io/py-snippets/s/deep-flatten/https://fluttersmith.github.io/py-snippets/s/deep-flatten/Lazily yield every value from arbitrarily nested iterables, treating strings as values.Thu, 01 Oct 2026 00:00:00 GMTlistsnestediterationhttps://fluttersmith.github.io/py-snippets/s/difference-by/https://fluttersmith.github.io/py-snippets/s/difference-by/Keep the items of one list whose key doesn't appear in another, preserving order.Thu, 01 Oct 2026 00:00:00 GMTlistssetshttps://fluttersmith.github.io/py-snippets/s/duplicates/https://fluttersmith.github.io/py-snippets/s/duplicates/List the values that repeat, or the ones that appear exactly once.Thu, 01 Oct 2026 00:00:00 GMTlistsdedupecountinghttps://fluttersmith.github.io/py-snippets/s/every-nth/https://fluttersmith.github.io/py-snippets/s/every-nth/Take every nth item from a sequence, starting with the nth, using a slice.Thu, 01 Oct 2026 00:00:00 GMTlistsiterationhttps://fluttersmith.github.io/py-snippets/s/group-by/https://fluttersmith.github.io/py-snippets/s/group-by/Bucket items into lists keyed by a function, keeping the original order inside each group.Thu, 01 Oct 2026 00:00:00 GMTlistsgroupinghttps://fluttersmith.github.io/py-snippets/s/has-duplicates/https://fluttersmith.github.io/py-snippets/s/has-duplicates/Return True as soon as any value repeats, even in a huge or endless iterable.Thu, 01 Oct 2026 00:00:00 GMTlistsdedupevalidationhttps://fluttersmith.github.io/py-snippets/s/have-same-contents/https://fluttersmith.github.io/py-snippets/s/have-same-contents/Compare two collections regardless of order, counting duplicates, in linear time.Thu, 01 Oct 2026 00:00:00 GMTlistsvalidationcountinghttps://fluttersmith.github.io/py-snippets/s/index-of-all/https://fluttersmith.github.io/py-snippets/s/index-of-all/Return all positions of a value, or of items matching a predicate.Thu, 01 Oct 2026 00:00:00 GMTlistssearchhttps://fluttersmith.github.io/py-snippets/s/intersection-by/https://fluttersmith.github.io/py-snippets/s/intersection-by/Keep the items of one list whose key also appears in another, preserving order.Thu, 01 Oct 2026 00:00:00 GMTlistssetshttps://fluttersmith.github.io/py-snippets/s/most-frequent/https://fluttersmith.github.io/py-snippets/s/most-frequent/Return the most common item, breaking ties by first appearance.Thu, 01 Oct 2026 00:00:00 GMTlistscountinghttps://fluttersmith.github.io/py-snippets/s/sort-by-indexes/https://fluttersmith.github.io/py-snippets/s/sort-by-indexes/Order items by the number at the same position in a second list.Thu, 01 Oct 2026 00:00:00 GMTlistssortinghttps://fluttersmith.github.io/py-snippets/s/union-by/https://fluttersmith.github.io/py-snippets/s/union-by/Merge two lists, keeping the first item for each key, in a predictable order.Thu, 01 Oct 2026 00:00:00 GMTlistssetsdedupehttps://fluttersmith.github.io/py-snippets/s/unique-elements/https://fluttersmith.github.io/py-snippets/s/unique-elements/De-duplicate a list while keeping the first occurrence of each value, in order.Thu, 01 Oct 2026 00:00:00 GMTlistsdedupehttps://fluttersmith.github.io/py-snippets/s/collect-dictionary/https://fluttersmith.github.io/py-snippets/s/collect-dictionary/Invert a dict so each value maps to the list of keys that had it.Thu, 01 Oct 2026 00:00:00 GMTdictsmappinggroupinghttps://fluttersmith.github.io/py-snippets/s/find-keys/https://fluttersmith.github.io/py-snippets/s/find-keys/Return every key whose value equals a given value.Thu, 01 Oct 2026 00:00:00 GMTdictssearchhttps://fluttersmith.github.io/py-snippets/s/get-nested/https://fluttersmith.github.io/py-snippets/s/get-nested/Follow a path of keys and indexes through nested dicts and lists, with a default.Thu, 01 Oct 2026 00:00:00 GMTdictsnestedsearchhttps://fluttersmith.github.io/py-snippets/s/invert-dictionary/https://fluttersmith.github.io/py-snippets/s/invert-dictionary/Swap keys and values with a dict comprehension; the last key wins on shared values.Thu, 01 Oct 2026 00:00:00 GMTdictsmappinghttps://fluttersmith.github.io/py-snippets/s/key-of-max/https://fluttersmith.github.io/py-snippets/s/key-of-max/Find the key with the largest or smallest value using max() or min() with a key function.Thu, 01 Oct 2026 00:00:00 GMTdictssearchsortinghttps://fluttersmith.github.io/py-snippets/s/map-values/https://fluttersmith.github.io/py-snippets/s/map-values/Build a new dict with a function applied to each value, keeping the keys.Thu, 01 Oct 2026 00:00:00 GMTdictsmappinghttps://fluttersmith.github.io/py-snippets/s/pluck/https://fluttersmith.github.io/py-snippets/s/pluck/Collect the value of a key from each dict, with None where it's missing.Thu, 01 Oct 2026 00:00:00 GMTdictsmappingnestedhttps://fluttersmith.github.io/py-snippets/s/sort-dict-by-value/https://fluttersmith.github.io/py-snippets/s/sort-dict-by-value/Return a copy of a dict ordered by its values, ascending or descending.Thu, 01 Oct 2026 00:00:00 GMTdictssortinghttps://fluttersmith.github.io/py-snippets/s/byte-size/https://fluttersmith.github.io/py-snippets/s/byte-size/Count the bytes a string takes up once encoded, which len() doesn't tell you.Thu, 01 Oct 2026 00:00:00 GMTstringstexthttps://fluttersmith.github.io/py-snippets/s/hamming-distance/https://fluttersmith.github.io/py-snippets/s/hamming-distance/Count the positions at which two equal-length strings differ.Thu, 01 Oct 2026 00:00:00 GMTstringstextcountinghttps://fluttersmith.github.io/py-snippets/s/hex-rgb/https://fluttersmith.github.io/py-snippets/s/hex-rgb/Parse #RRGGBB and #RGB colours into (r, g, b), and format them back.Thu, 01 Oct 2026 00:00:00 GMTstringsconversionhttps://fluttersmith.github.io/py-snippets/s/is-anagram/https://fluttersmith.github.io/py-snippets/s/is-anagram/Compare letter counts, ignoring case, spaces and punctuation.Thu, 01 Oct 2026 00:00:00 GMTstringstextvalidationhttps://fluttersmith.github.io/py-snippets/s/is-palindrome/https://fluttersmith.github.io/py-snippets/s/is-palindrome/Check whether text reads the same reversed, ignoring case, spaces and punctuation.Thu, 01 Oct 2026 00:00:00 GMTstringstextvalidationhttps://fluttersmith.github.io/py-snippets/s/naming-cases/https://fluttersmith.github.io/py-snippets/s/naming-cases/Convert text between snake_case, kebab-case, camelCase and PascalCase, acronyms included.Thu, 01 Oct 2026 00:00:00 GMTstringstextconversionhttps://fluttersmith.github.io/py-snippets/s/slugify/https://fluttersmith.github.io/py-snippets/s/slugify/Make a lowercase, ASCII, hyphen-separated slug from any text, including accented letters.Thu, 01 Oct 2026 00:00:00 GMTstringstextconversionhttps://fluttersmith.github.io/py-snippets/s/words/https://fluttersmith.github.io/py-snippets/s/words/Extract the words from text with a regex, keeping apostrophes and hyphens inside words.Thu, 01 Oct 2026 00:00:00 GMTstringstexthttps://fluttersmith.github.io/py-snippets/s/clamp-number/https://fluttersmith.github.io/py-snippets/s/clamp-number/Limit a value to an inclusive range, accepting the bounds in either order.Thu, 01 Oct 2026 00:00:00 GMTnumbersvalidationhttps://fluttersmith.github.io/py-snippets/s/digitize/https://fluttersmith.github.io/py-snippets/s/digitize/Turn an integer into a list of its decimal digits.Thu, 01 Oct 2026 00:00:00 GMTnumbersconversionhttps://fluttersmith.github.io/py-snippets/s/is-prime/https://fluttersmith.github.io/py-snippets/s/is-prime/Test primality by trial division up to the integer square root.Thu, 01 Oct 2026 00:00:00 GMTnumbersvalidationhttps://fluttersmith.github.io/py-snippets/s/num-to-range/https://fluttersmith.github.io/py-snippets/s/num-to-range/Linearly map a value from one range onto another, like Arduino's map().Thu, 01 Oct 2026 00:00:00 GMTnumbersconversionhttps://fluttersmith.github.io/py-snippets/s/to-roman-numeral/https://fluttersmith.github.io/py-snippets/s/to-roman-numeral/Convert 1 to 3999 into Roman numerals with a greedy table, rejecting values outside that range.Thu, 01 Oct 2026 00:00:00 GMTnumbersconversionhttps://fluttersmith.github.io/py-snippets/s/daterange/https://fluttersmith.github.io/py-snippets/s/daterange/Yield the dates from start up to end, like range() for days, with an optional step.Thu, 01 Oct 2026 00:00:00 GMTdatescalendariterationhttps://fluttersmith.github.io/py-snippets/s/months-diff/https://fluttersmith.github.io/py-snippets/s/months-diff/Count complete calendar months between two dates, the way people count them.Thu, 01 Oct 2026 00:00:00 GMTdatescalendarhttps://fluttersmith.github.io/py-snippets/s/weekdays/https://fluttersmith.github.io/py-snippets/s/weekdays/Tell weekdays from weekends using date.weekday().Thu, 01 Oct 2026 00:00:00 GMTdatescalendarvalidation