Simple Python expression evaluator

Python Evaluator.applescript

property defaultPythonExpression : "' '.join([word.capitalize() for word in 'the green mile'.capitalize().split()])"

to getPythonExpressionFromUser given defaultExpresion:defaultExpression
	return text returned of ¬
		(display dialog "Enter a Python expression:" with title "Python Evaluator Expression" default answer defaultExpression)
end getPythonExpressionFromUser

to getResult from pythonExpression
	return (do shell script "python -c \"print " & pythonExpression & "\"")
end getResult

to displayResultDialog(theResult)
	return button returned of ¬
		(display dialog "Result" with title "Python Evaluator - Result" default answer theResult buttons {"Quit", "Continue"} default button "Continue")
end displayResultDialog

set pythonExpression to defaultPythonExpression

repeat
	set pythonExpression to getPythonExpressionFromUser given defaultExpresion:pythonExpression
	set button to displayResultDialog(getResult from pythonExpression)
	
	if button is equal to "Quit" then
		exit repeat
	end if
end repeat