Am 22.07.2010 15:04, schrieb Bartosz Tarnowski:
>
> Hello, guys.
>
> Python has more and more reserved words over time. It becomes quite annoying,
> since you can not use variables and attributes of such names. Suppose I want
> to
> make an XML parser that reads a document and returns an object with
> attributes
> corresponding to XML element attributes:
>
> > elem = parse_xml("<element param='boo'/>")
> > print elem.param
> boo
>
> What should I do then, when the attribute is a reserver word? I could use
> trailing underscore, but this is quite ugly and introduces ambiguity.
>
> > elem = parse_xml("<element for='each'/>")
> > print elem.for_ #?????
> > elem = parse_xml("<element for_='each'/>")
> > print elem.for__ #?????
>
> My proposal: let's make a syntax change.
>
> Let all reserved words be preceded with some symbol, i.e. "!" (exclamation
> mark). This goes also for standard library global identifiers.
>
> !for boo in foo:
> !if boo is !None:
> !print(hoo)
> !else:
> !return !sorted(woo)
You raise a good point. However, I'd rather explicitly signify names instead
of keywords:
for $boo in $foo:
if $boo is $None:
print($hoo)
else:
return sorted($woo)
That also has the advantage of introducing a measure of much needed
compatibility with industry-leading web programming languages.
Georg
--
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Four shall be the number of spaces thou shalt indent, and the number of thy
indenting shall be four. Eight shalt thou not indent, nor either indent thou
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