whatever 0.3

Easy way to make anonymous functions by partial application of operators.

An easy way to make lambdas by partial application of python operators.

Inspired by Perl 6 one, see http://perlcabal.org/syn/S02.html#The_Whatever_Object

Usage

from whatever import _, that

# get a list of guys names
names = map(_.name, guys)
names = map(that.name, guys)

odd = map(_ * 2 + 1, range(10))

squares = map(_ ** 2, range(100))
small_squares = filter(_ < 100, squares)

best = max(tries, key=_.score)
sort(guys, key=-that.height)

factorial = lambda n: reduce(_ * _, range(2, n+1))

NOTE: chained comparisons cannot be implemented since there is no boolean overloading in python.

TODO

• make benches

• use WhateverCode anonymous subclasses to optimize calls

• optimized version which returns lambdas and partial ops instead of WhateverCode