Eric vs IBM Rational Developer for i

Eric is a Python editor and IDE based on Qt and Scintilla, intended for quick edits as well as project management. Its current stable version, eric7, is based on PyQt6, Qt6 and Python 3. Editing tools include syntax highlighting, autocompletion, calltips, source folding, brace matching, error highlighting and project-wide search and replace. For development, it includes a Python debugger with multi-thread and multiprocessing support, profiling, code coverage, code checking, task management and unittest support. Core plugins provide interfaces for Mercurial, Subversion and Git repositories, and users can load further extensions from its Plugin Repository. Python tools include pip and virtual environment management and an interactive shell; rope refactoring is available as an optional plugin. Eric also lists chat and a shared editor as cooperation functions. It runs on Linux, macOS and Windows, and can be installed through PyPI or a distribution archive. The maker recommends installation in a Python virtual environment, and directs Windows users to a ZIP archive. It is free, with no price or usage limits stated.

IBM Rational Developer for i has no write-up on Specifiction yet; its figures are above.