[Python-Dev] Switch statement (original) (raw)

Ka-Ping Yee python-dev at zesty.ca
Wed Jun 21 10:38:57 CEST 2006

On Wed, 21 Jun 2006, Phillip J. Eby wrote:

Well, EIBTI and all that:

switch x: case == 1: foo(x) case in S: bar(x) It even lines up nicely. :)

Hmm, this is rather nice. I can imagine possible use cases for

switch x:
    case > 3: foo(x)
    case is y: spam(x)
    case == z: eggs(x)

An interesting use case for which this offers no corresponding syntax is

    case instanceof ClassA: ham(x)

which doesn't work because Python spells a type test as isinstance(a, b) rather than with an operator. (I suppose whether we want it to be an operator might be another question to think about for Python 3000.)

-- ?!ng

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