Programming/Polyglot Problems

Have you ever gotten syntax errors because you know how to do the thing in one language but can't remember how to do that the other one?

Java	C#	Python	Ruby

def quick_sort(arr):
	less = []
	pivot_list = []
	more = []
	if len(arr) <= 1:
		return arr
	else:
		pass

if condition
  do_thing
elsif
  do_other_thing
else
  do_else_thing
end