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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Can't import with latest NumPy dev 2.4.0.dev0","articleBody":"See\n\nhttps://dev.azure.com/mne-tools/mne-python/_build/results?buildId=34392\u0026view=logs\u0026jobId=dded70eb-633c-5c42-e995-a7f8d1f99d91\u0026j=dded70eb-633c-5c42-e995-a7f8d1f99d91\u0026t=1ccededa-7e7e-5a92-87ce-e531d760d025\n\n```\nC:\\hostedtoolcache\\windows\\Python\\3.13.8\\x64\\Lib\\site-packages\\neo\\core\\spiketrain.py:24: in \u003cmodule\u003e\n    import quantities as pq\nC:\\hostedtoolcache\\windows\\Python\\3.13.8\\x64\\Lib\\site-packages\\quantities\\__init__.py:275: in \u003cmodule\u003e\n    from . import quantity\nC:\\hostedtoolcache\\windows\\Python\\3.13.8\\x64\\Lib\\site-packages\\quantities\\quantity.py:113: in \u003cmodule\u003e\n    class Quantity(np.ndarray):\nC:\\hostedtoolcache\\windows\\Python\\3.13.8\\x64\\Lib\\site-packages\\quantities\\quantity.py:632: in Quantity\n    @with_doc(np.ndarray.ptp)\n              ^^^^^^^^^^^^^^\nE   AttributeError: type object 'numpy.ndarray' has no attribute 'ptp'\n```\nPresumably because on 2.2.6 you get this warning\n```\n\u003e\u003e\u003e import numpy as np\n\u003e\u003e\u003e np.ndarray.ptp\n\u003cattribute 'ptp' of 'numpy.ndarray' objects\u003e\n\u003e\u003e\u003e x = np.arange(10)\n\u003e\u003e\u003e x.ptp()\nTraceback (most recent call last):\n  File \"\u003cpython-input-4\u003e\", line 1, in \u003cmodule\u003e\n    x.ptp()\n    ^^^^^\nAttributeError: `ptp` was removed from the ndarray class in NumPy 2.0. Use np.ptp(arr, ...) instead.\n```\nand now they've decided in 2.4.0.dev0 to actually remove it entirely.","author":{"url":"https://github.com/larsoner","@type":"Person","name":"larsoner"},"datePublished":"2025-10-20T17:14:36.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":0},"url":"https://github.com/262/python-quantities/issues/262"}