On Tue, Aug 9, 2011 at 9:42 PM, Yingjie Lan <[email protected]> wrote:
> Hi all,
>
> When writing a long expresion, one usually would like to break it into
> multiple lines. Currently, you may use a '\' to do so, but it looks a little
> awkward (more like machine-oriented thing). Therefore I start wondering why
> not allow line breaking at an operator, which is the standard way of breaking
> a long expression in publication? Here is an example:
>
> #the old way
>
> x = 1+2+3+4+\
> 1+2+3+4
>
> #the new way
> x = 1+2+3+4+ #line continues as it is clearly unfinished
>
> 1+2+3+4
# the currently allowed way
x = (1+2+3+4+
1+2+3+4)
# note the parentheses
I think this is sufficient.
> Of course, the dot operator is also included, which may facilitate method
> chaining:
>
> x = svg.append( 'circle' ).
> r(2).cx(1).xy(1).
> foreground('black').bkground('white')
Python does not particularly endorse method chaining; it's why
list.sort(), list.append(), and similar methods of built-in types
return None rather than self.
Also, I dislike this for the dot operator especially, as it can
obscure whether a method call or a function call is taking place.
Cheers,
Chris
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