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Raymond Hettinger's recipes

• Technique for cyclical iteration

  Python / Concurrency model, Cyclic iterator / 3 points (3 votes) / by Raymond Hettinger (4 days, 3 hours ago, revision 4)
• Efficient Algorithm for computing a Running Median

  Python / median, sliding window / 2 points (2 votes) / by Raymond Hettinger (1 month, 1 week ago, revision 5)
• Partitioning a sequence

  Python / no tags / 1 point (1 vote) / by Raymond Hettinger (5 months, 3 weeks ago, revision 2)
• Polar-to-rectangular conversions using CORDIC

  Python / no tags / 1 point (1 vote) / by Raymond Hettinger (5 months, 3 weeks ago)
• Geohashing

  Python / no tags / by Raymond Hettinger (6 months, 4 weeks ago)
• Simple Version Control

  Python / no tags / 1 point (1 vote) / by Raymond Hettinger (7 months ago, revision 2)
• Long period random number generator

  Python / no tags / 1 point (3 votes) / by Raymond Hettinger (7 months, 3 weeks ago, revision 12)
• OrderedSet with Weakrefs

  Python / no tags / 2 points (2 votes) / by Raymond Hettinger (8 months ago, revision 5)
• OrderedSet

  Python / no tags / 2 points (2 votes) / by Raymond Hettinger (8 months, 1 week ago, revision 6)
• Ordered Dictionary for Py2.4

  Python / no tags / 1 point (1 vote) / by Raymond Hettinger (8 months, 1 week ago, revision 3)
• Total ordering class decorator

  Python / no tags / 5 points (7 votes) / by Raymond Hettinger (8 months, 1 week ago, revision 10)
• Accessor function for private variables in Py3.x

  Python / no tags / by Raymond Hettinger (8 months, 3 weeks ago)
• Ordered Dictionary for Py2.7 and Py3.1

  Python / no tags / 1 point (3 votes) / by Raymond Hettinger (8 months, 4 weeks ago, revision 18)
• Out of date recipe

  Python / no tags / 0 points (2 votes) / by Raymond Hettinger (7 months, 2 weeks ago, revision 7)
• Convert a cmp function to a key function

  Python / 2-to-3 / 3 points (3 votes) / by Raymond Hettinger (8 months ago, revision 3)
• Eight queens. Six lines.

  Python / no tags / 3 points (5 votes) / by Raymond Hettinger (9 months, 2 weeks ago, revision 3)
• DBM with Dict-speed accesses and Multiple standard file formats

  Python / no tags / 4 points (4 votes) / by Raymond Hettinger (9 months, 3 weeks ago, revision 5)
• Draft for an sqlite3 based DBM

  Python / no tags / by Raymond Hettinger (9 months, 3 weeks ago, revision 4)
• Alphametics solver

  Python / no tags / 2 points (2 votes) / by Raymond Hettinger (10 months, 1 week ago, revision 8)
• Counter class

  Python / no tags / 2 points (6 votes) / by Raymond Hettinger (4 months, 3 weeks ago, revision 11)
• Composable Functions

  Python / shortcuts / -2 points (6 votes) / by Raymond Hettinger (1 year, 4 months ago)
• Lightweight Unittester

  Python / debugging / 4 points (4 votes) / by Raymond Hettinger (7 months, 2 weeks ago, revision 4)
• Pickle Optimizer

  Python / distributed / 2 points (2 votes) / by Raymond Hettinger (1 year, 9 months ago, revision 2)
• Rational approximations

  Python / algorithms / 1 point (1 vote) / by Raymond Hettinger (7 months, 2 weeks ago, revision 4)
• How __slots__ are implemented

  Python / programs / 2 points (2 votes) / by Raymond Hettinger (2 years, 1 month ago, revision 2)
• Listenable Sets

  Python / database / 1 point (1 vote) / by Raymond Hettinger (2 years, 5 months ago, revision 2)
• Transactional Set Updates

  Python / algorithms / by Raymond Hettinger (2 years, 7 months ago, revision 2)
• Fast constant function

  Python / shortcuts / 3 points (3 votes) / by Raymond Hettinger (2 years, 9 months ago, revision 2)
• Named Tuples

  Python / shortcuts / 15 points (15 votes) / by Raymond Hettinger (6 months ago, revision 15)
• get_equivalent(container, item)

  Python / search / 3 points (3 votes) / by Raymond Hettinger (6 months, 4 weeks ago, revision 3)
• ElementTree Text Helper

  Python / xml / 1 point (1 vote) / by Raymond Hettinger (2 years, 11 months ago, revision 4)
• LRU cache decorator

  Python / shortcuts / 5 points (5 votes) / by Raymond Hettinger (3 years ago, revision 2)
• Data Mining with Neural Nets

  Python / algorithms / 5 points (5 votes) / by Raymond Hettinger (3 years, 4 months ago)
• Mastermind-style code-breaking

  Python / algorithms / by Raymond Hettinger (3 years, 3 months ago, revision 2)
• Game theory payoff matrix solver

  Python / algorithms / by Raymond Hettinger (3 years, 5 months ago)
• Iterator Merge

  Python / algorithms / 6 points (6 votes) / by Raymond Hettinger (2 years, 9 months ago, revision 3)
• TaskQueue

  Python / threads / 3 points (3 votes) / by Raymond Hettinger (3 years, 8 months ago, revision 3)
• Atomically execute a block of Python statements

  Python / threads / 9 points (9 votes) / by Raymond Hettinger (7 months, 4 weeks ago, revision 2)
• Sudoku Solver

  Python / algorithms / by Raymond Hettinger (3 years, 8 months ago, revision 5)
• Parameterized database functions

  Python / database / by Raymond Hettinger (3 years, 9 months ago)
• Chomsky random text generator

  Python / text / 1 point (1 vote) / by Raymond Hettinger (4 years, 2 months ago, revision 2)
• Poker hand primitives

  Python / algorithms / by Raymond Hettinger (4 years, 5 months ago)
• Arbitrary precision binary floating point arithmetic

  Python / algorithms / 1 point (1 vote) / by Raymond Hettinger (4 years, 6 months ago, revision 2)
• Substitute Decimals for floats in expressions

  Python / shortcuts / 3 points (3 votes) / by Raymond Hettinger (4 years, 5 months ago, revision 5)
• Binary floating point summation accurate to full precision

  Python / algorithms / 8 points (10 votes) / by Raymond Hettinger (7 months, 4 weeks ago, revision 5)
• DBF reader and writer

  Python / database / 6 points (6 votes) / by Raymond Hettinger (6 months, 4 weeks ago, revision 7)
• Non-exponential floating point representation

  Python / text / by Raymond Hettinger (4 years, 11 months ago, revision 2)
• Add key= argument to min(), max(), heapq.nsmallest() and nlargest()

  Python / shortcuts / by Raymond Hettinger (4 years, 11 months ago, revision 3)
• Spreadsheet

  Python / programs / 13 points (13 votes) / by Raymond Hettinger (4 years, 11 months ago, revision 2)
• Find the most frequent elements

  Python / algorithms / 1 point (1 vote) / by Raymond Hettinger (4 years, 10 months ago, revision 2)
• Flexible enumerate()

  Python / shortcuts / by Raymond Hettinger (5 years, 1 month ago, revision 2)
• XML Directory Tree

  Python / programs / 2 points (2 votes) / by Raymond Hettinger (5 years, 1 month ago, revision 4)
• Simplified string substitution

  Python / text / 4 points (4 votes) / by Raymond Hettinger (5 years, 1 month ago, revision 4)
• Merge sorted sequences

  Python / shortcuts / 2 points (2 votes) / by Raymond Hettinger (5 years, 2 months ago, revision 2)
• Chained map lookups

  Python / oop / 4 points (4 votes) / by Raymond Hettinger (5 years, 1 month ago, revision 2)
• Decorator for BindingConstants at compile time

  Python / programs / 21 points (21 votes) / by Raymond Hettinger (5 years, 2 months ago, revision 8)
• Two-pass Pairing Heap with Multipass Auxiliary List

  Python / algorithms / 1 point (1 vote) / by Raymond Hettinger (4 years, 12 months ago, revision 4)
• Random samples without replacement

  Python / algorithms / 2 points (2 votes) / by Raymond Hettinger (5 years, 8 months ago)
• Select the nth smallest element

  Python / search / 1 point (1 vote) / by Raymond Hettinger (5 years, 8 months ago, revision 6)
• Floating Point Simulator

  Python / algorithms / 1 point (1 vote) / by Raymond Hettinger (5 years, 10 months ago, revision 4)
• deque collection class

  Python / algorithms / 1 point (1 vote) / by Raymond Hettinger (2 years, 4 months ago, revision 8)
• bag collection class

  Python / algorithms / 4 points (4 votes) / by Raymond Hettinger (4 years, 11 months ago, revision 6)
• Groupby

  Python / algorithms / 11 points (11 votes) / by Raymond Hettinger (5 years, 9 months ago, revision 5)
• Implementation of sets using sorted lists

  Python / algorithms / 4 points (4 votes) / by Raymond Hettinger (2 years, 6 months ago, revision 2)
• Variant of property() allowing one function to be used for multiple attributes.

  Python / shortcuts / 1 point (1 vote) / by Raymond Hettinger (6 years, 5 months ago)
• Metaclass for Interface Checking

  Python / debugging / 5 points (5 votes) / by Raymond Hettinger (6 years, 5 months ago, revision 4)
• Improve dictionary lookup performance

  Python / programs / 1 point (1 vote) / by Raymond Hettinger (6 years, 6 months ago, revision 3)
• Generator Attributes

  Python / threads / 6 points (6 votes) / by Raymond Hettinger (6 years, 11 months ago, revision 3)
• How to Set Environment Variables

  Python / sysadmin / 0 points (2 votes) / by Raymond Hettinger (7 years ago)
• Dictionary Mixin / Framework

  Python / oop / 1 point (1 vote) / by Raymond Hettinger (7 years, 7 months ago, revision 2)

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Raymond Hettinger's tags

2-to-3 algorithms Concurrency model Cyclic iterator database debugging distributed median oop programs search shortcuts sliding window sysadmin text threads xml