-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Travis Oliphant wrote: | save = numpy.seterr(dividebyzero='warn') | | ... | | numpy.seterr(restore=save) Most of this discussion is outside of my scope, but I have programmed this kind of pattern in a different way before: ~ save = context.push(something) ~ ... ~ del save i.e. the destructor of the saved context object restores the old situation. In most cases it will be called by letting "save" go out of scope. I know that relying on timely object destruction can be troublesome when porting to Jython, but it is very convenient in CPython. If that goes too far, one could make a separate method on save: ~ save.pop() This can do sanity checking too (are we really at the top of the stack? Only called once?). The destructor should check whether pop has been called. Rob - -- Rob W.W. Hooft || rob@hooft.net || http://www.hooft.net/people/rob/ -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.2.2 (GNU/Linux) Comment: Using GnuPG with Thunderbird - http://enigmail.mozdev.org iD8DBQFEL3EUH7J/Cv8rb3QRAuvsAJ9PO6ZITdVSm+hIwxkWDHHbTNFHdQCcDSWI Iv7gupkFc8+Fby/5MFwHQf4= =zE/o -----END PGP SIGNATURE-----