When comparing Kdevelop with kdev-python vs PyScripter, the Slant community recommends PyScripter for most people. In the question“What are the best Python IDEs or editors?” PyScripter is ranked 15th while Kdevelop with kdev-python is ranked 17th. The most important reason people chose PyScripter is:
PyScripter is a lightweight Python IDE.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Blazingly fast
PyCharm is amazing and easily the most feature option out there. But KDevelop is faster and has all the features needed for python develop. Opening new files, moving from file to file, code and syntax checks, everything happens instantly.
In the end the speed is what won me over to use KDevelop, when code is in my mind I don't want to wait on my IDE.
Pro Excellent syntax highlighting
Kdevelop has very smart syntax and semantic syntax highlighting.

Pro Real-time static analysis
Kdevelop has a pretty powerful and sophisticated implementation of static analysis for Python. It's capable of pretty good type inference, tracking types and the expected groking of inheritance trees.
Pro Best Vim bindings in an IDE
Most IDEs have very limited vim bindings, but KDevelop runs on the Kate editor. Kate is one of the most robust editors in the Linux world and is subsequently very functional. The Vim bindings are very close to complete with very few holes.
Pro Lightweight
PyScripter is a lightweight Python IDE.
Pro Easy to use
Covers the needs of advanced users (thread debugging, unit testing etc.).
Pro Superb for interactively developing scripts
When you run a program, the context is automatically available in the Python interpreter afterwards, without having to set breakpoints.
Pro Easy to set up
No configurations needed. Just download and code.
Cons
Con Works with no problems only on Linux
KDevelop is an IDE for the KDE platform. Even though it's cross-platform, it's mostly targeted at Linux systems and the versions for other operating systems are highly experimental.
Con Windows only
Available for Windows only.
Con Noticeably unstable since v.4
Frequently hangs/freezes, esp. when debugging.
Con Refactoring is not that easy
In Pyscripter, refactoring pretty much leans on traditional dumb find-and-replace.
