King schrieb:
"eval" can solve this problem right away but I am concerned about
security issues. If not "eval" could you suggest something more
efficient way. It won't be a big deal to change the format as
application is still at development stage?
If you don't want to use eval (which is a good thing not to want), you'd
end up (as Chris already told you) writing your own parser for python
subexpressions. Which is laborous.
Or you create a XML-representation of these expressions, which saves you
the parser, but not the evaluator, and bloats the XML. It could look
like this:
<Connection>
<node name="node1">
<attribute name="gradient">
<attribute name="colors">
<item index="0" kind="int">
<item index="1" kind="int"/>
<... # close them all
</node>
<node ... # and the destination
</Connection>
Is this *really* all worth doing, or can't you just overcome your
preconceptions - and use pickle, as it has been suggested to you before?
Potentially with __getstate__/__setstate__ overridden for specific objects.
Diez
--
http://mail.python.org/mailman/listinfo/python-list
