我正在使用 python 代码作为我不想触摸的黑匣子。该代码在 Ubuntu 12.04 下使用 Python 运行良好,但在将系统升级到 Ubuntu 16 后,我收到以下警告,该警告会中断代码运行。知道如何在不更改代码的情况下解决此问题吗?非常感谢。
File "/home/hammouc/.local/lib/python2.7/site-packages/scipy/sparse/base.py", line 849, in todense return np.asmatrix(self.toarray(order=order, out=out))
File "/home/hammouc/.local/lib/python2.7/site-packages/numpy/matrixlib/defmatrix.py", line 71, in asmatrix return matrix(data, dtype=dtype, copy=False)
File "/home/hammouc/.local/lib/python2.7/site-packages/numpy/matrixlib/defmatrix.py", line 123, in new PendingDeprecationWarning, stacklevel=2)
PendingDeprecationWarning: the matrix subclass is not the recommended way to represent matrices or deal with linear algebra (see https://docs.scipy.org/doc/numpy/user/numpy-for-matlab-users.html). Please adjust your code to use regular ndarray.
最佳答案
与 import warnings
模块,可以控制警告的显示。
与 M
作为稀疏矩阵:
In [26]: warnings.filterwarnings('ignore', category=PendingDeprecationWarning)
In [27]: M.todense()
Out[27]:
matrix([[1., 0., 0.],
[0., 1., 0.],
[0., 0., 1.]])
In [28]: warnings.filterwarnings('default', category=PendingDeprecationWarning)
In [29]: M.todense()
/usr/local/lib/python3.6/dist-packages/numpy/matrixlib/defmatrix.py:71: PendingDeprecationWarning: the matrix subclass is not the recommended way to represent matrices or deal with linear algebra (see https://docs.scipy.org/doc/numpy/user/numpy-for-matlab-users.html). Please adjust your code to use regular ndarray.
return matrix(data, dtype=dtype, copy=False)
Out[29]:
matrix([[1., 0., 0.],
[0., 1., 0.],
[0., 0., 1.]])
制作
ndarray
而不是 np.matrix
:In [30]: M.toarray()
Out[30]:
array([[1., 0., 0.],
[0., 1., 0.],
[0., 0., 1.]])
In [31]: M.A
Out[31]:
array([[1., 0., 0.],
[0., 1., 0.],
[0., 0., 1.]])
显然我的默认
ipython
setup 会忽略这些警告,所以我以前没见过。我得看看配置文件。
关于python-2.7 - 如何解决 PendingDeprecationWarning : the matrix subclass is not the recommended way to represent matrices 的问题,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/56146811/