Tag: language hacks

Adding multi-line lambdas to Python

At the risk of this blog becoming dedicated to "the worst things you can do in Python" I present to you: multiline lambdas in Python!

Implementation was simple:

import sys

def fun(string):
    frame = sys._getframe(1)
    out = {}
    locals = {}
    exec ("def __anon ...

Adding functional style pattern matching to Python

One of the nicest features of functional programming languages like Haskell and Erlang is pattern matching. An example, from Learn You Some Erlang:

greet(male, Name) ->
    io:format("Hello, Mr. ~s!", [Name]);
greet(female, Name) ->
    io:format("Hello, Mrs. ~s!", [Name]);
greet(_, Name) ->
    io:format("Hello, ~s!", [Name]).

The ...

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