Closed
Description
Here's an example where loadtxt doesn't return the correct data.
In [23]: from io import StringIO
In [24]: import numpy as np
In [25]: point = np.dtype([('x', float), ('y', float)])
In [26]: dt = np.dtype([('code', int), ('points', point, (2,))])
In [27]: dt
Out[27]: dtype([('code', '<i8'), ('points', [('x', '<f8'), ('y', '<f8')], (2,))])
In [28]: np.loadtxt(StringIO('100 1 2 3 4\n200 5 6 7 8\n'), dtype=dt)
Out[28]:
array([(100, [(1., 1.), (2., 2.)]), (200, [(5., 5.), (6., 6.)])],
dtype=[('code', '<i8'), ('points', [('x', '<f8'), ('y', '<f8')], (2,))])The expected value is array([(100, [(1., 2.), (3., 4.)]), (200, [(5., 6.), (7., 8.)])], ...)
NumPy version:
In [29]: np.__version__
Out[29]: '1.20.0.dev0+7af1024'