How to write lazy functions which are chainable, in python?

Posted by roopesh on Stack Overflow See other posts from Stack Overflow or by roopesh
Published on 2010-06-16T02:43:54Z Indexed on 2010/06/16 2:52 UTC
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lazy

I want to write functions which are lazy as well as chainable. What would be the best way. I know that one way would be to do yield instead of return.

I want these functions to be lazy in the way similar to how sqlalchemy functions are lazy when asked to fetch the data from DB.

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