Why do I get SyntaxError: invalid syntax

[Chris Angelico]

On Mon, May 4, 2015 at 9:31 PM, Cecil Westerhof <Cecil at decebal.nl> wrote:
> While copying pasting code to test, the following works:
> [chomp]
> But first I used:
>     with NamedTemporaryFile(mode = 'w', prefix = file + '_', dir = filepath, delete = False) as tf:
>         tempfile = tf.name
>         with open(real_file, 'r') as f:
>             for line in islice(f, 1, None):
>                 tf.write(line)
>     rename(tempfile, real_file)
>
> But that gave:
>       File "<stdin>", line 6
>         rename(tempfile, real_file)
>              ^
>     SyntaxError: invalid syntax
>
> Why?

To clarify: When you say "to test", you mean the interactive
interpreter, right? If so, you need to end blocks of text with blank
lines (and not have any blank lines in between). It's because the
parser has to know when to run stuff; when you run a script, it parses
the whole thing and then runs it, but interactively, it has to work
piece-meal.

ChrisA