I\'ve noticed the following code is legal in Python. My question is why? Is there a specific reason?
n = 5
while n != 0:
print n
n -= 1
else:
pri
The else-clause is executed when the while-condition evaluates to false.
From the documentation:
The while statement is used for repeated execution as long as an expression is true:
while_stmt ::= "while" expression ":" suite ["else" ":" suite]
This repeatedly tests the expression and, if it is true, executes the first suite; if the expression is false (which may be the first time it is tested) the suite of the
else
clause, if present, is executed and the loop terminates.A
break
statement executed in the first suite terminates the loop without executing theelse
clause’s suite. Acontinue
statement executed in the first suite skips the rest of the suite and goes back to testing the expression.