On Jul 23, 7:27 pm, Grant Edwards <inva...@invalid.invalid> wrote: > That said, "map" seems to be frowned upon by the Python community for > reasons I've never really understood,...
Maybe the analogy: comprehension : map :: relational calculus : relational algebra In particular map, filter correspond to project and select in algebra. In principle the two are equivalent (Codd's theorem) however in practice, the calculus is found to be more declarative whereas the algebra is more suitable for specifying execution plans. -- http://mail.python.org/mailman/listinfo/python-list
