[Python-ideas] More power in list comprehensions with the 'as' keyword
rrr at ronadam.com
Thu Aug 28 19:41:20 CEST 2008
Josiah Carlson wrote:
> The split/strip stuff is simple on purpose; it's fast. Tossing in
> regular expressions handling is a great way to slow down the general
> case, never mind if you actually want to split on the passed literal
That's easy to remedy without making it overly complex.
>> text.split_pattern(' *\n+ *')
> - Josiah
> On Thu, Aug 28, 2008 at 9:14 AM, Ron Adam <rrr at ronadam.com> wrote:
>> Josiah Carlson wrote:
>>> -1 on the feature, I use the compound expression as below, only have
>>> the internal item be a generator expression to reduce peak memory
>>> usage. Also, the != condition is unnecessary.
>>> [t for t in (t.strip() for t in text.split('\n')) if t]
>> If split was a bit smarter...
>> text.split(pattern=(' *\n+ *'))
>> It can be done with the re module, but I need to look that up each time I
>> use it since I don't use it enough to remember all it's subtleties.
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