Shift + Tab operation not works in IPython 3.x

[tdna]

When you press shift tab when your console on a variable the following exception triggered and the kernel will freeze:

Exception in thread "RequestsEventLoop" java.lang.RuntimeException: JSON deserialization error: JsResultException(errors:List((/msg_type,List(ValidationError(Enumeration expected of type: class org.tribbloid.ispark.msg.MsgTypes$, but it does not appear to contain the value: inspect_request,WrappedArray()))))) at scala.sys.package$.error(package.scala:27) at scala.Predef$.error(Predef.scala:142) at org.tribbloid.ispark.Communication.recv(Communication.scala:77) at org.tribbloid.ispark.Main$EventLoop.run(Main.scala:165)

[tribbloid]

sorry could you advice me what's the usage of shift-tab? I'm not a Python programmer.

[tdna]

It just displays the object's/function's/method's header with the docstring.

[tribbloid]

In a pop-up floating frame? That sounds like an advanced feature that is not supported by Scala Interpreter (or compiler, as only Scala/Java bytecode but not sourcecode will be visible to them). However, I'm thinking of using this feature to display other things, like progress bar or something else.

On 04/30/2015 04:35 AM, tdna wrote:

It just displays the object's/function's/method's header with the docstring.

— Reply to this email directly or view it on GitHub https://github.com/tribbloid/ISpark/issues/15#issuecomment-97707185.

[tdna]

Yes, a popup. I think handling this exception would be good at least. Thank you.

[tribbloid]

After protocol upgrade the exception no longer exists. But still this is kind of a lackluster. The popup can defintely show something (by hacking into java/scala reflection)