Variables and Scopes

Please note that Wirbel creates a variable if it sees an assignment to it anywhere. The variables are created at time of compilation. See the following example:

s = ""
for v in [1, 2, 3, 4, 5]:
    if notfirst:
	s += ","
    else:
	notfirst = true
    s += str(v)
print(s)