Dear Pymol users,
I just discovered something I did not expect: the same python function can
have extremely different performance when called as a python function or
using the pymol api.
To be more specific: I have a function func that (among other things) uses
cmd.alter several times over a big system to change the properties and
representation.
If I run it calling func() from a python script, its effects are almost
instant. If I call it with cmd.do('func') (or directly from within pymol
with func), it’s extremely slow (up to 10 seconds) and Pymol freezes
completely during this time.
I expected this to be due to an overhead of the api itself, but when I do
the same thing with a simpler function, I see no noticeable difference.
Why exactly is this happening? And more importantly, how can I get the
performance of func even when I call it from within pymol?
Thank you,
Lorenzo
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