{"id":23906,"library":"iterpop","title":"iterpop","description":"iterpop provides safe and convenient functions to pop a single value from a container, avoiding manual length checks. Current version 0.4.1, stable. Low release cadence.","status":"active","version":"0.4.1","language":"python","source_language":"en","source_url":"https://github.com/mmore500/iterpop","tags":["iterators","containers","pop","safety"],"install":[{"cmd":"pip install iterpop","lang":"bash","label":"Install via pip"}],"dependencies":[],"imports":[{"note":"Standard import path.","wrong":"","symbol":"pop_singular","correct":"from iterpop import pop_singular"},{"note":"Standard import path.","wrong":"","symbol":"pop_equals_unique","correct":"from iterpop import pop_equals_unique"}],"quickstart":{"code":"from iterpop import pop_singular\n\nitems = [42]\nvalue = pop_singular(items)\nprint(value)  # 42","lang":"python","description":"Pop the single element from a list, raising an error if not exactly one element."},"warnings":[{"fix":"Catch ValueError or ensure container length is 1.","message":"pop_singular expects exactly one element. If the container is empty or has more than one, it raises a ValueError. This is by design, but newcomers may expect a default or None.","severity":"gotcha","affected_versions":">=0.1.0"},{"fix":"Use copy before calling: items_copy = items[:]; value = pop_singular(items_copy).","message":"pop_singular modifies the container in place (like list.pop()). It does not return a copy. If you need the original unchanged, make a copy first.","severity":"gotcha","affected_versions":">=0.1.0"}],"env_vars":null,"last_verified":"2026-05-01T00:00:00.000Z","next_check":"2026-07-30T00:00:00.000Z","problems":[{"fix":"Verify container has exactly one element before calling pop_singular, or use pop_equals_unique if you want to compare uniqueness across multiple containers.","cause":"pop_singular called on a container with length != 1.","error":"ValueError: The container has more than one element"},{"fix":"Ensure container has at least one element, or handle exception.","cause":"pop_singular called on an empty container.","error":"ValueError: The container is empty"}],"ecosystem":"pypi","meta_description":null,"install_score":null,"install_tag":null,"quickstart_score":null,"quickstart_tag":null}