As far as I can see the 'compressed files' option can neither be read nor set from Python. poser.kExOptCodeSAVECOMPRESSED by its name seems to be a constant intended to make programs easier to read.

It is inconvenient you cannot read or set that option, but I do not understand why you need it. There is nothing wrong with either of the options. Poser reads both, and if you need to read it you can check for the compressed version if the non-compressed version does not exist.

I fully agree with you about the gibberish saved in Pose files. For that reason I did a little experimenting with saving poses as quaternions. The good thing there is that it takes just the real bone angles from the selected figure, including the effect of the pose dials and nothing else that later can cause havock elsewhere.

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