{"id":27803,"date":"2026-06-03T04:27:33","date_gmt":"2026-06-03T04:27:33","guid":{"rendered":"https:\/\/sharpinterview.online\/?sharp_quiz=python-interview-weakref-caching-foundation"},"modified":"2026-06-03T04:27:33","modified_gmt":"2026-06-03T04:27:33","slug":"python-interview-weakref-caching-foundation","status":"publish","type":"sharp_quiz","link":"https:\/\/sharpinterview.online\/?sharp_quiz=python-interview-weakref-caching-foundation","title":{"rendered":"Python: Which statement about weakref and Object Lifetime is the strongest interview answer?"},"content":{"rendered":"<h2>Question<\/h2>\n<p>Which statement about weakref and Object Lifetime is the strongest interview answer?<\/p>\n<ol type=\"A\">\n<li>weakref and Object Lifetime is mostly a naming style choice and has little effect on runtime behavior or design tradeoffs.<\/li>\n<li>weakref and Object Lifetime exists mainly to reduce the number of files in a Python project.<\/li>\n<li>weakref lets code reference an object without keeping it alive solely because the cache or observer still knows about it.<\/li>\n<li>weakref and Object Lifetime matters only for frontend scripting and not for backend or automation code.<\/li>\n<\/ol>\n<h2>Hint<\/h2>\n<p>Start with the core rule behind weakref and Object Lifetime.<\/p>\n<h2>Answer and rationale<\/h2>\n<p><strong>Correct answer:<\/strong> C. weakref lets code reference an object without keeping it alive solely because the cache or observer still knows about it.<\/p>\n<p>weakref lets code reference an object without keeping it alive solely because the cache or observer still knows about it. This is the base concept interviewers commonly test first.<\/p>\n<p><strong>Track:<\/strong> Python<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Which statement about weakref and Object Lifetime is the strongest interview answer?<\/p>\n","protected":false},"author":1,"featured_media":0,"template":"","topic":[88,124,89],"difficulty":[6],"class_list":["post-27803","sharp_quiz","type-sharp_quiz","status-publish","hentry","topic-python","topic-python-core-weakref-and-object-lifetime","topic-python-interview-questions","difficulty-easy"],"_links":{"self":[{"href":"https:\/\/sharpinterview.online\/index.php?rest_route=\/wp\/v2\/sharp_quiz\/27803","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sharpinterview.online\/index.php?rest_route=\/wp\/v2\/sharp_quiz"}],"about":[{"href":"https:\/\/sharpinterview.online\/index.php?rest_route=\/wp\/v2\/types\/sharp_quiz"}],"author":[{"embeddable":true,"href":"https:\/\/sharpinterview.online\/index.php?rest_route=\/wp\/v2\/users\/1"}],"wp:attachment":[{"href":"https:\/\/sharpinterview.online\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=27803"}],"wp:term":[{"taxonomy":"topic","embeddable":true,"href":"https:\/\/sharpinterview.online\/index.php?rest_route=%2Fwp%2Fv2%2Ftopic&post=27803"},{"taxonomy":"difficulty","embeddable":true,"href":"https:\/\/sharpinterview.online\/index.php?rest_route=%2Fwp%2Fv2%2Fdifficulty&post=27803"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}