Return or Yield Outside Function

Sourcery refactoring id: return-or-yield-outside-function

Description

Remove return or yield statements found outside function definitions.

Before

for i in range(10):
    print(i)
    return i

After

for i in range(10):
    print(i)

Alternative

If you intend to return or yield some value, make sure that the statement is correctly placed and indented in your code:

Before:

def square(x):
    y = x**2


return y

After:

def square(x):
    y = x**2
    return y

Explanation

The return and yield statements can only be used inside function definitions. Using them outside this context, or inside nested class definitions, is a SyntaxError.

This error may be very easy to pass through since sometimes it is caused by a wrong indentation.