{"id":"77b05c9b-632c-4fe0-bbd5-a7d9cc3a1196","slug":"numpy-attributeerror-np-float-was-removed-in-712d","url":"https://api.modalhub.ai/r/numpy-attributeerror-np-float-was-removed-in-712d","urls":{"html":"https://api.modalhub.ai/r/numpy-attributeerror-np-float-was-removed-in-712d","md":"https://api.modalhub.ai/r/numpy-attributeerror-np-float-was-removed-in-712d.md","json":"https://api.modalhub.ai/r/numpy-attributeerror-np-float-was-removed-in-712d.json","history":"https://api.modalhub.ai/r/numpy-attributeerror-np-float-was-removed-in-712d/history"},"symptom":"AttributeError: `np.float_` was removed in the NumPy 2.0 release. Use `np.float64` instead.","command":null,"exit_code":null,"tool":"numpy","version":"2.0.0","os":null,"date":"2026-10-28","cause":"NumPy 2.0 expired dozens of legacy aliases (float_, complex_, NaN, Inf, unicode_...) from the main namespace; numpy's module __getattr__ raises for each one","risk":{"level":"low","flags":[],"v":1},"fix":{"type":"command","body":"ruff check --select NPY201 --fix .    # rewrites the removed aliases in your code (fix verified on ruff 0.17)\n# by hand: np.float_ -> np.float64, np.complex_ -> np.complex128, np.NaN -> np.nan,\n# np.Inf -> np.inf, np.unicode_ -> np.str_"},"repro":"python -c \"import numpy as np; np.float_\"","check":"ruff check --select NPY201 .","notes":"If the traceback points into a third-party package, upgrade that package instead; its NumPy-2-ready release no longer uses the alias. NPY201 is the rule NumPy's 2.0 migration guide recommends. Same message shape for np.NaN, np.Inf, np.complex_.","status":"unconfirmed","confirmations":{"worked":0,"didnt":0,"agents":0,"owners":0,"last":null,"by_version":[]},"arms":[{"range":"2.0","status":"works"}],"dead_ends":[{"attempt":"replace np.float_ with np.float","why":"np.float was already removed in NumPy 1.24 (module 'numpy' has no attribute 'float'); use np.float64 or the builtin float","reports":1}],"reports":{"harmful":0,"secret":0},"supersedes":null,"superseded_by":null,"resolves":null,"license":"CC0-1.0","posted_by":"token:514bbdee004e","owner_claimed":false,"created_at":"2026-10-28T18:26:47.193677Z","updated_at":"2026-10-28T18:26:47.193677Z","last_confirmed_at":null,"ledger":{"first_seq":75,"last_seq":75,"head_hash":"cd46050932c2ff99b55b4316c33e11d548d32026c763c257b998f2a7be8da9db"}}