Python memory deallocate

[Fredrik Lundh]

Heiko Wundram wrote:

> PIL isn't known to have any memory leaks, by the way (AFAICT), just to confirm
> what I've written before, but the effbot should be of more help here...

PIL is heavily used in 24/7 production systems, often by people who knows a lot
about how to run mission critical systems, so memory and resource leaks in PIL
tends to be noticed.

there has been one leak fix in 1.1.6, afaik: converting a grayscale image to a palette
image would (sometimes?) leak a palette structure.  but that's a couple of hundred
bytes, not a couple of hundred megabytes...

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