Quoting "Noah Kantrowitz" <n...@coderanger.net>:
If you are calling eval() on a user-provided string you should
assume they can run arbitrary code with the permissions of the
webserver.
Even if I limit the available commands? I use:
eval(argument, {"__builtins__": None}, CalcMacro._localdict)
_localdict contains some Python built-ins and math functions.
If you want to make a single calculation system, PyParsing has one
as an example.
Yes, PyParsing is really nice and capable.
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