{"id": 662322234, "node_id": "MDExOlB1bGxSZXF1ZXN0NDUzODkwMjky", "number": 901, "title": "Use None as a default arg", "user": {"value": 56323389, "label": "Alyetama"}, "state": "closed", "locked": 0, "assignee": null, "milestone": null, "comments": 1, "created_at": "2020-07-20T22:18:38Z", "updated_at": "2020-07-31T18:42:39Z", "closed_at": "2020-07-31T18:42:39Z", "author_association": "CONTRIBUTOR", "pull_request": "simonw/datasette/pulls/901", "body": "When passing a mutable value as a default argument in a function, the default argument is mutated anytime that value is mutated. This poses a bug risk. Instead, use None as a default and assign the mutable value inside the function.", "repo": {"value": 107914493, "label": "datasette"}, "type": "pull", "active_lock_reason": null, "performed_via_github_app": null, "reactions": "{\"url\": \"https://api.github.com/repos/simonw/datasette/issues/901/reactions\", \"total_count\": 0, \"+1\": 0, \"-1\": 0, \"laugh\": 0, \"hooray\": 0, \"confused\": 0, \"heart\": 0, \"rocket\": 0, \"eyes\": 0}", "draft": 0, "state_reason": null}