[3.13] gh-136914: Fix support of cached functions and properties in DocTest's lineno computation (GH-136930) #137615
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…cTest's lineno computation (pythonGH-136930) Previously, DocTest's lineno of functions and methods decorated with functools.cache(), functools.lru_cache() and functools.cached_property() was not properly returned (None was returned) because the computation relied on inspect.isfunction() which does not consider the decorated result as a function. We now use the more generic inspect.isroutine(), as elsewhere in doctest's logic. Also, added a special case for functools.cached_property(). (cherry picked from commit fece15d) Co-authored-by: Denis Laxalde <denis@laxalde.org>
This was referenced Aug 10, 2025
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Previously, DocTest's lineno of functions and methods decorated with
functools.cache(), functools.lru_cache() and functools.cached_property()
was not properly returned (None was returned) because the
computation relied on inspect.isfunction() which does not consider the
decorated result as a function.
We now use the more generic inspect.isroutine(), as elsewhere
in doctest's logic.
Also, added a special case for functools.cached_property().
(cherry picked from commit fece15d)
Co-authored-by: Denis Laxalde denis@laxalde.org