When comparing Eric Python IDE vs IDLE, the Slant community recommends Eric Python IDE for most people. In the question“What are the best Python IDEs or editors?” Eric Python IDE is ranked 14th while IDLE is ranked 35th. The most important reason people chose Eric Python IDE is:
Eric has a python debugger built-in.
Specs
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Pros
Pro Integrated python debugger
Eric has a python debugger built-in.
Pro Good project management
Pro Integration with version control software
Integrates with various VCS.
Pro Integrated class browser
With Eric you can easily browse all classes in your current Python project and display the methods for a given class.
Pro Sometimes simple is best
For short scripts, a heavyweight IDE just gets in the way. It's also easier for beginners to understand.
Pro Written in pure Python/tkinter
You can dig in and change how it works.
Pro Included in standard Python distributions
You probably already have it.
Pro Debugger
It has one.
Cons
Con Complex interface
Eric has a very complex UI. It overwhelms you with sections and windows and doesn't let you focus on code. Every tool is displayed on the top bars (there are 3) with no logical grouping or structure whatsoever.
Con Auto completion is not very good
The auto completion is not top-notch compared to other IDEs and text editors. In fact, many people recommend installing a third-party plugin to improve the auto completion found in Eric.
Con No Tabbing for Files or Shell instances
Idle's Interactive Python Shell and the Python Text Editor are separate window applications. Many would expect them to be unified together within a single window. To create a python program file, or module, the user first opens Idle (It's Interactive Shell), then the user goes to [File] and [New File] to open the Idle Text Editor. Plus, every time a new python file is opened, a new instance of Idle runs separately. So, there are no tabbed modules. That's clumsy approach that adds the complexity of juggling around many Idle instances.