An interesting beginner question: why we need colon at all in the python language?
anthony.hw.kong at gmail.com
Mon Jul 11 11:10:44 EDT 2011
Sorry, typo in my original question. I do mean 'colon'. It should have read
*If Python use indentation to denote scope, why it still needs colon at the
end of function declaration and for/while/if loop?*
On Tue, Jul 12, 2011 at 12:36 AM, Dave Angel <davea at ieee.org> wrote:
> On 01/-10/-28163 02:59 PM, Anthony Kong wrote:
>> Hi, all,
>> Lately I am giving some presentations to my colleagues about the python
>> language. A new internal project is coming up which will require the use
>> One of my colleague asked an interesting:
>> *If Python use indentation to denote scope, why it still needs semi-colon
>> the end of function declaration and for/while/if loop?*
>> My immediate response is: it allows us to fit statements into one line.
>> if a == 1: print a
>> However I do not find it to be a particularly strong argument. I think
>> does not recommend this kind of coding style anyway, so one-liner should
>> be used in the first place!
>> Is there any other reasons for use of semi-colon in python?
>> You're confusing the colon with the semi-colon. If you want two
> statements on the same line, you use a semi-colon.
> The character you're asking about is the colon. It goes at the end of an
> if, else, for, with, while statement. I doubt it's absolutely essential,
> but it helps readability, since a conditional expression might span multiple
> if someexpression ==
Don’t EVER make the mistake that you can design something better than what
you get from ruthless massively parallel trial-and-error with a feedback
cycle. That’s giving your intelligence _much_ too much credit.
- Linus Torvalds
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