How can I find all subclasses of a given class in Python?

I need a working approach of getting all classes that are inherited from the base class in Python.

TensorFlow: product equivalent of tf.add_n

Is there a product equivalent of tf.add_n, returning the elementwise product of a list of tensors?

Javascript Router without hasing

What is the best Javascript or a jquery plugin to enable routing without using hashing like: youtube , facebook , digitalocean and many others

How to request a url from the browser

I would like to receive the address of the site of the active tab in the browser from my application (in Python or Java)

Simplest jQuery Spinner during ajax response loading interval [on hold]

I want to show a spinner image during my ajax call request and its response loading. Can you point out some sample code of jQuery Spinner?

Document.ready won't work

Any idea why this code doesn't work ? I defined a text input field with this ID in the HTML. $('document').ready(function() { $('#inputUsername').keyup(alert("something")); } );

Add key to a dictionary in Python?

Is it possible to add a key to a Python dictionary after it has been created? It doesn't seem to have an .add() method.