Spyder vs Light Table

Released under the MIT license.

Spyder can plot graphs and provide the list of all variables.

Pylint integration enables to check the code for PEP8 style guide and detect errors.

Spyder's autocomplete features are made possible by a library called rope which gives Spyder powerful autocompletion.

Spyder (formerly Pydee) has support for all of the major operating platforms - Linux, Mac, and even Windows.

Aside from being an open sourced, actively developed IDE, vim key-binding support is also available. If you remember Pydee - this is it, albeit with a new name.

Dynamic variable explorer with editor and visualizer

With LT's inline evaluation, you don't have to re-compile your whole source file. Each time you want to see an output, all you have to do is hover your cursor over the line you'd like to evaluate and press ctrl+enter; LT will evaluate that line of code for you.

The "Watches" feature lets you see your code running live as you type it. This means that you can debug your code live while writing it, which leads to considerably less programming errors.

LT has a plugin manager built directly inside of it. This plugin manager connects to LT's own registry of plugins, so whenever you want assistance while writing your HTML, JS, or even Python, just open up the plugin manager, search for it, and click the little install button beside it's name. Your plugin will then be installed.