wtfpython is a behavioral reference and catalog of language edge cases for the Python programming language. It serves as a guide to common development mistakes and ambiguous code structures that lead to unexpected results.
The project identifies counter-intuitive code patterns and unexpected behaviors to help developers avoid pitfalls and logical errors. It utilizes a collection of curated examples to document language quirks and specific formatting conflicts, such as indentation errors.
The reference includes verification of how specific code snippets behave across different versions of the Python interpreter to highlight behavioral changes and regressions.