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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"How to pass *varargs?","articleBody":"How do you pass a variable list of arguments in pythonnet?  The problem is the function `numpy.gradient(f, *varargs, axis=None, edge_order=1)` as documented here: https://numpy.org/doc/stable/reference/generated/numpy.gradient.html\r\n\r\nHere is an example in python\r\n\r\n```python\r\n\u003e\u003e\u003e import numpy as np\r\n\u003e\u003e\u003e dx=4.0\r\n\u003e\u003e\u003e dy=5.0\r\n\u003e\u003e\u003e zX=[[1,2,3],[4,5,6],[8,9,0]]\r\n\u003e\u003e\u003e np.gradient(zX, dx, dy)\r\n[array([[ 0.75 ,  0.75 ,  0.75 ],\r\n       [ 0.875,  0.875, -0.375],\r\n       [ 1.   ,  1.   , -1.5  ]]), array([[ 0.2,  0.2,  0.2],\r\n       [ 0.2,  0.2,  0.2],\r\n       [ 0.2, -0.8, -1.8]])]\r\n\u003e\u003e\u003e\r\n```\r\n\r\nI tried to pass the variable args with the args tuple but then the python function complains that the number of arguments is incorrect. \r\n\r\n```text\r\nPython.Runtime.PythonException: TypeError : invalid number of arguments\r\n ['  File \"C:\\\\Users\\\\henon\\\\AppData\\\\Local\\\\python-3.7.3-embed-amd64\\\\lib\\\\numpy\\\\lib\\\\function_base.py\", line 1013, in gradient\\n    raise TypeError(\"invalid number of arguments\")\\n']   at Python.Runtime.PyObject.Invoke(PyTuple args, PyDict kw)\r\n   at Python.Runtime.PyObject.InvokeMethod(String name, PyTuple args, PyDict kw)\r\n```\r\n\r\nI also tried to pass it as kw[\"varargs\"] but then python says there is no kwarg named \"varargs\"\r\n\r\nSo how to call that function? ","author":{"url":"https://github.com/henon","@type":"Person","name":"henon"},"datePublished":"2022-04-24T20:54:00.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":0},"url":"https://github.com/1771/pythonnet/issues/1771"}