Autovacuum is not the enemy -

Graphics with scientific data become clearer when the colours are chosen carefully. It is convenient to have good default schemes ready for each type of data, with colours that are:

distinct for all people, including colour-blind readers;
distinct from black and white;
distinct on screen and paper;
matching well together.

This site shows such schemes, developed with the help of mathematical descriptions of colour differences and the two main types of colour-blind vision.

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boltons should be builtins.

Boltons is a set of pure-Python utilities in the same spirit as — and yet conspicuously missing from — the the standard library, including:

    Atomic file saving, bolted on with fileutils
    A highly-optimized OrderedMultiDict, in dictutils
    Two types of PriorityQueue, in queueutils
    Chunked and windowed iteration, in iterutils
    A full-featured TracebackInfo type, for representing stack traces, in tbutils
    A lightweight UTC timezone available in timeutils.
    Recursive mapping for nested data transforms, with remap

https://github.com/buunguyen/octotree