When comparing Spyder vs Ninja, the Slant community recommends Spyder for most people. In the question“What are the best Python IDEs or editors?” Spyder is ranked 8th while Ninja is ranked 30th. The most important reason people chose Spyder is:
Spyder's autocomplete features are made possible by a library called [rope](https://github.com/python-rope/rope) which gives Spyder powerful autocompletion.
Ranked in these QuestionsQuestion Ranking
Pro Powerful autocompletion
Spyder's autocomplete features are made possible by a library called rope which gives Spyder powerful autocompletion.
Pro Free and open-source
Released under the MIT license.
Pro Graph plotting support
Spyder can plot graphs and provide the list of all variables.
Pro Has cross platform support - Linux, Mac, and even Windows
Spyder (formerly Pydee) has support for all of the major operating platforms - Linux, Mac, and even Windows.
Pro Relatively lightweight
Pro Helps you to use documentation
Pro Intuitive interface
Pro Enables to write consistent code
Pylint integration enables to check the code for PEP8 style guide and detect errors.
Pro Has support for Vim bindings via plugin support
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.
Pro Good GitHub project
Pro Excellent variable explorer
Dynamic variable explorer with editor and visualizer
Pro Completely Python
Pro Simple set up
Once dependencies like maven are installed it is up and running in minutes with one simple command.
Pro Easy horizontal scaling
Ninja is stateless by design. This makes horizontal scaling very easy and just a matter of adding servers.
Con Not beautiful
The default theme is not beautiful. And there are not many themes.
Con The documentation is poor when it comes to debugging
Not a lot of information about debugging is available in the documentation.
Con Little user choice in organization
Since most of the code and folder structure are automatically generated, this leaves little room to the developer on how they will organize their project.