Steve D'Aprano wrote:
On Sat, 23 Sep 2017 03:01 pm, Bill wrote:
s='(20 - 10) > 15'
b=(20 - 10) > 15
print(s, " is ", ("true" if b else "false") ); ## inside parentheses
may be removed.
I am new to Python. Maybe someone here is familiar with an elegant way
to get the the value of b directly from the string s? Hmm... It appears
that eval() would work
Indeed it will, but don't get into the habit of using eval willy-nilly. While it
is absolutely fine to use it with data you provide yourself, it is a HUGE
security risk to eval strings that came from an untrusted user.
eval("__import__('os').system('echo """rm-rf /"""')")
Thank you. Studying that was a nice little lesson in itself! I
recognize that this technique can be used for 'good' as well as 'evil'! : )
Bill
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