Why is PyQt connect() syntax so verbose?

I'm just learning PyQt and looking at the Signals and Slots mechanism. I'm a bit baffled by the verbose syntax. Why do we have:

self.connect(dial, SIGNAL("valueChanged(int)"), spinbox.setValue)

I would much prefer to write the following:

self.connect(dial.valu开发者_开发问答eChanged, spinbox.setValue)

Can anyone tell me why the connect() syntax needs to be so explicit/verbose?

You can use PyQt's new style signals which are less verbose:

self.connect(dial, SIGNAL("valueChanged(int)"), spinbox.setValue)

Becomes:

dial.valueChanged.connect(spinbox.setValue)

Luper's answer is much better than this one, but for the sake of completeness...

The ugly "old style" syntax is an anachronism from the C++ world - just look at the syntax those guys have to work with! Yucky...

An even shorter way is to assign the signal name to the function in the keyword arguments of the constructor e.g. QDial(valueChanged=spinbox.setValue). PyQt will automatically connect the valueChanged() signal to spinbox.setValue().