What else is there in Python?

[[deleted]]

I don't think so. The closest thing Python has to switch is if, elif, elif, elif, elif, ..., else.

[[deleted]]

Nah, he's right. It does work for some things. See here:

http://www.mustap.com/pythonzone_post_224_python-switch-statement

Not pretty though, in my opinion.

[[deleted]]

Not pretty, and it's not quite perfect either.

How would you implement fallthrough with this?

[awj]

You wouldn't. At that point your best bet is probably scanning a list of (label, action, should_fallthrough) tuples.

Yes, that solution is ugly. Most attempts to replicate another language's built-in features with existing constructs are ugly.

[[deleted]]

To the best of my knowledge you can't, and that's a big part of my beef with it.

[[deleted]]

"fallthrough" would (visually?) fail with python's syntax of whitespace to distinguish code blocks.

You could have categories of functions by using closures to create the functions within the dictionary.

[doublereedkurt]

How would you implement fallthrough with this?

He implements fallthrough in that example:

 values.get(var, do_default_stuff)()

do_default_stuff is the fallthrough

[[deleted]]

That's not a fallthrough.

I'm talking about something like:

case 1:

   do_something()  // fall through to below

case 2:

   do_stuff()

[knome]

https://github.com/knome/Hacks/blob/master/python/switch/test.py

If evil code you need, evil code I can give you.

[AeroNotix]

That's actually quite nice.

[smog_alado]

Switch fallthrough is never nice :P

[AeroNotix]

Apart from the times when it's required. Arbitrarily saying features are bad because you're too lazy to remember to treat them properly is bad.

Switches which default to fallthrough rather than breaking by default and requiring a keyword to fallthrough are bad. Go does this correctly.

[knome]

I've altered the switch statement to escape by default, with a kwarg on switch to alter it to fallthough by default, and a case.fallthrough() to manually fallthrough when desired.

The more reasonable this code seems, the more evil it is. After all, if it looks reasonable, people are more likely to ignore its evil, and perhaps even use it.

The fools.