[Python-ideas] textFromMap(seq , map=None , sep='' , ldelim='', rdelim='') (original) (raw)

Boris Borcic bborcic at gmail.com
Tue Oct 26 19:59:17 CEST 2010

Steven D'Aprano wrote:

Boris Borcic wrote:

And let's then propagate that notion, to a coherent definition of split that makes it as well a method on the separator. Let's not. Splitting is not something that you on the separator, it's something you do on the source string. I'm sure you wouldn't expect this: ":".find("key:value") => 3

To be honest, my test for this type of questions is how likely I find myself using the bound method outside of immediate method call syntax, and I'd say having a specialized callable that will find specific content in whatever future argument, is more likely than the converse callable that will find occurences of whatever future argument in a fixed string. YMMV

Nor should we expect this: ":".split("key:value") => ["key", "value"]

You perform a search on the source string, not the target substring. Likewise you split the source string, not the separator.

To me, this sounds like giving too much weight to english language intuition. What really counts is not how it gets to be said in good english, but rather - what's the variable/object/value that, in the context of the action, tends to be the most stable focus of attention. And remember that most speakers of E as a second language, never become fully comfortable with E prepositions.

Cheers, BB

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