How to extract a command from a string - python

Question

I have a command like this:

test = ('print( "It works!" )' )

and I want to use the command which is inside of that string. Do you know how can I extract it and use it?

Thank you very much, Remus

jamylak · Accepted Answer · 2013-05-21 12:34:27Z

2

Use exec but make sure you trust the code, ie. don't run this on user submitted code for security reasons

>>> test = ('print( "It works!" )' )
>>> exec test
It works!

answered May 21, 2013 at 12:34

jamylak

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1 Comment

RoadieRich Over a year ago

To point out why this can be bad if you can't trust the string, consider test = "del __builtins__". It's short and sweet, and it cripples python - but not the computer, which is one of the things a real attacker would be trying to do.

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