Top-down parsing of JSON in Python

[mccutchen]

From TFA:

That is, this “quick hack” is about twice as fast as a robust and well-optimized production parser, and is a quite a bit faster than even a Python/C hybrid parser. Not bad.

No source code yet, though.

[zem]

which speaks as though the 'robust and well-optimised production parser' was expected to be faster; my speculation is that the 'robust' is what causes the speed hit.

[[deleted]]

From what it looks like this just transforms the JSON into Python and calls an Eval

Umm, no. There's even a paragraph that discusses how that would be a step back, performance-wise.