Since Python scopes lexical variables to the function instead of the block, `j` is in scope for every line of `... outer ...`. So de-denting the last line of i

Since Python scopes lexical variables to the function instead of the block, `j` is in scope for every line of `... outer ...`. So de-denting the last line of inner doesn't trigger a NameError, even for new bindings which were introduced within `... inner ...`.