Introspection in Python involves tools like isinstance(), type(), hasattr(), the inspect module, and metaprogramming dunder methods, enabling in-depth code inspection while running programs.
Django supports Python introspection techniques alongside a documented set of functions and methods specifically for inspecting Django apps and models, including the apps module and Model _meta API.
Django's system checks framework is another tool allowing checks at 'warning' and 'error' levels, providing insights like field naming conventions, which can be switched for unit tests if preferred.
Using introspection in Django or Python projects through a REPL is considered more effective than heavy documentation, ensuring better convention adherence for smoother development experiences.
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