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I'd like to simply execute a Python command without having to write a script or enter the interpreter. Is there a way that I could run something like:

python --execute "pow(12.31351,2)"

And have it simply print the result?

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up vote 6 down vote accepted

you can use -c arguments,like python -c "print 123",see python --help

usage: python [option] ... [-c cmd | -m mod | file | -] [arg] ...
     -c cmd : program passed in as string (terminates option list)
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Right, just needs a print statement to dump to stdout, gotcha. –  Naftuli Tzvi Kay Sep 21 '11 at 22:52
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