The real problem is similar to a dynamic plugin system, but I do not want the residual effects of loading a package (permanently modifying the symbol table) that exists elsewhere.

How do you intend to avoid permanently modifying the symbol table? Why would you want that, anyway? If you don't permanently modify the symbol table won't you have to reload the entire module on each function call?

-sam

In reply to Re^3: How can I (safely) use packages of the same name but different versions? by samtregar
in thread How can I (safely) use packages of the same name but different versions? by xevian

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