Why am I getting errors with execs nested in functions?

Question

I'm trying to make a "compiler" for my game (so that people could do intresting stuff but not inject code), for mainly declaritive "code" (It would look like this: {"player_location":"IceHall.A7", "print", "You are teleported somewhere", "tiles":{"FirePlace.B3":{'Type':"Corner", "Actions+":{....}}}}. This is how a action is represented; It is called when the player does it. Anyways, it would have to be compiled into a function. When I tryed out something similar in the interactive interpreter (specifically:

def compile(code):
    def act():
       exec code
    return act

). This (which is would be more or less what would be in the final, with the exception of "code" being constructed by me) raised a odd error:

File "", line 3 SyntaxError:
unqualified exec is not allowed in function 'act' it is a nested function.

How do I get around this?

You probably want to write your own parser using a lib like pyparsing. — Jakob Bowyer, Jun 29 '11 at 11:03
What exactly does `code` hold? Your program worked fine for me, it did not give any such Syntax Error. Give an example of what string `code` can hold. — Pushpak Dagade, Jun 29 '11 at 12:02
Try this [previous response](http://stackoverflow.com/questions/4484872/in-python-why-doesnt-exec-work-in-a-function-with-a-subfunction). Looks like they had the same problem and solved it. — thegrinner, Jun 29 '11 at 14:19

score 0 · Accepted Answer · edited May 23 '17 at 12:33

0

The answer, as said in this question, is the lack of context. I wanted exec code in locals(), globals()

edited May 23 '17 at 12:33

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answered Mar 14 '12 at 21:47

technillogue

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Why am I getting errors with execs nested in functions?

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