When comparing Kdevelop with kdev-python plugin vs IDLE, the Slant community recommends Kdevelop with kdev-python plugin for most people. In the question“What are the best free IDEs for Python?” Kdevelop with kdev-python plugin is ranked 21st while IDLE is ranked 23rd. The most important reason people chose Kdevelop with kdev-python plugin is:
Kdevelop has very unique syntax highlighting. It's very addicting - other IDE will soon look monochrome to you.
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Pros
Pro Best in industry syntax highlighing
Kdevelop has very unique syntax highlighting. It's very addicting - other IDE will soon look monochrome to you.
Pro Fast code completion
Kdevelop indices all your classes, methods, functions and global variables in memory, which makes class/method lookups to complete in no time.
Pro Very lean on CPU and RAM
Even quite large projects occupy only several hundreds megabytes of RAM. Try that in Eclipse...
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 Only preliminary support for Windows
The Windows version is still in alpha.
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.