zlib + pytables 3.4.2 + matplotlib = segfault on savefig when tables imported first

[jeanconn]

zlib + pytables 3.4.2 + matplotlib = segfault on savefig when tables imported first (zlib does not need to be imported for things to go wrong).

It looks like the workarounds are to import matplotlib before tables or import zlib before matplotlib. Looks like this is fixed in newer versions of pytables and/or zlib.

[jeanconn]

@taldcroft I'm not sure if there is a more useful place to put this as a "gotcha" with our current ska3-flight.

[taldcroft]

Can we upgrade to the newer version(s) without the problem?

[jeanconn]

I think we have the last pytables before everything breaks, but I also confess I don't remember where things were with pytables issues.

[jeanconn]

Yeah, pytables 3.4.2 is the last one available for our old versions of things. Else we would have updated already to try to fix #84 . I can look again at our own source-built conda package #127 or we can let the versions of things start to differ much more significantly between 32bit and 64bit.

[javierggt]

This issue becomes irrelevant after shiny, so will close.

No idea if this was ever fixed, but does somebody care now?

[jeanconn]

Similar to the other issues you are closing (thanks!) I think it makes sense to assume these are fixed and we can always open new issues. This one is the kind of thing that was order dependent and weird... but apparently I didn't write up a test and there also isn't enough here to really help us if it turns up again.

[javierggt]

yes, I figure these things could "in principle" happen, but might be unlikely considering so much changed.