recordclass 0.6

Mutable variant of collections.namedtuple, which supports assignments

recordclass is MIT Licensed python library. It implements the type memoryslots and factory function recordclass in order to create record-like classes.

• memoryslots is tuple-like type, which supports assignment operations.

• recordclass is a factory function that create a “mutable” analog of collection.namedtuple.

This library actually is a “proof of concept” for the problem of fast “mutable” alternative of namedtuple.

Main repository for recordclass is on bitbucket.

Here is also a simple example.

Quick start:

First load inventory:

>>> from recordclass import recordclass, RecordClass

Simple example with recordclass:

>>> Point = recordclass('Point', 'x y')
>>> p = Point(1,2)
>>> print(p)
Point(1, 2)
>>> print(p.x, p.y)
1 2
>>> p.x, p.y = 10, 20
>>> print(p.x, p.y)
10 20

Simple example with RecordClass and typehints:

class Point(RecordClass):
   x: int
   y: int

>>> p = Point(1, 2)
>>> print(p)
Point(1, 2)
>>> print(p.x, p.y)
1 2
>>> p.x, p.y = 10, 20
>>> print(p.x, p.y)
10 20

Changes:

0.6

• Add support for default values in recordclass factory function in correspondence to same addition to namedtuple in python 3.7.

0.5

• Change version to 0.5

0.4.4

• Add support for default values in RecordClass (patches from Pedro von Hertwig)

• Add tests for RecorClass (adopted from python tests for NamedTuple)

0.4.3

• Add support for typing for python 3.6 (patches from Vladimir Bolshakov).

• Resolve memory leak issue.

0.4.2

• Fix memory leak in property getter/setter