jashkenas on How many lines of Java would this take?

In CoffeeScript, it's a few lines less:

    has_methods: (obj, meth_names) ->
      name for name in meth_names when obj[name] and obj[name].call

It's actually the same length in Python. Just take out the extra line breaks from the gist:

    def hasmethods(obj, *meth_names):
        return all(hasattr(getattr(obj, m, None), '__call__') for m in meth_names)

Technically it's one line without semicolons in Python

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