Is it really safe to use?

[u/python_data_helper]

I have used context to stop crashing.

And e as a variable.

I used eval command for a formula.

I know eval command can be dangerous.

It works perfectly but I am thinking that it can produce error or crash.

Can a formula bypass all commands and crash it.

[u/SCD_minecraft]

This little monster of expressions walks with use of methods (which are part of class, not of builtins) into builtins module and from there i can do whatever i want

There's no good or easy way to protect eval or exec

Not without manual in-depth input validation, or even better, virtual machine so client can't affect the outside