[issue12778] JSON-serializing a large container takes too much memory

[Antoine Pitrou]

Antoine Pitrou <pitrou at free.fr> added the comment:

> I actually looked into doing this for issue #12134, but it didn't seem 
> so simple; Since C has no yield, I think the iterator would need to
> maintain its own stack to keep track of where it is in the object tree 
> it's encoding...

The encoder doesn't have to be turned into an iterator. It would just need to call a given callable (fp.write) at regular intervals and that would be enough to C-accelerate dump().

My patch actually provides a good foundation for this.

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<http://bugs.python.org/issue12778>
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