bug about syntax of "if-else" statement in the IDLE shell
Hello, Several days ago I downloaded Python 3.2, the standard windows installer, for windows vista. Here's the bug: in the Python-command line, the following works: "
if 2==2:print('yes')
. . . else:print('n') . . . yes " Now, in the Python shell (IDLE-python gui, the standard one included with the installer of python), the only way it works is:
if 2==2:print('yes')
else:print('n') yes So, it requires me to put "else" unindented. On the other hand, if the "if--else" statement is included in the definition of a function, then it requires that "else" be exactly under "if". This was frustrating, when trying to learn "if-else" statement, because it took me half an hour of experimenting, before I figurred out. Shouldn't it be consistent? Could you please reply me with an explanation, in case I am wrong? Victor
Hi Victor, On Mon, Mar 7, 2011 at 03:19, Victor Paraschiv <victorywin5@yahoo.com> wrote:
So, it requires me to put "else" unindented. On the other hand, if the "if--else" statement is included in the definition of a function, then it requires that "else" be exactly under "if". This was frustrating, when trying to learn "if-else" statement, because it took me half an hour of experimenting, before I figurred out. Shouldn't it be consistent? Could you please reply me with an explanation, in case I am wrong?
I can try to explain what I think it's happening: python interpreter shell makes a consistent use of a prompt (either '>>> ' or '... ') that makes commands indented by default by 4 chars. IDLE just presents the '>>> ' for the first commands, and multiline instructions has to be at the same level of indentation, and so the 'else' has to be at the beginning of the line, since 'if' has no indentation. Regards, -- Sandro Tosi (aka morph, morpheus, matrixhasu) My website: http://matrixhasu.altervista.org/ Me at Debian: http://wiki.debian.org/SandroTosi
participants (2)
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Sandro Tosi -
Victor Paraschiv