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  • xarray · 1 ✖
id node_id number title user state locked assignee milestone comments created_at updated_at ▲ closed_at author_association active_lock_reason draft pull_request body reactions performed_via_github_app state_reason repo type
391398977 MDU6SXNzdWUzOTEzOTg5Nzc= 2609 Cannot replace xr.ufuncs.angle with np.angle rth 630936 closed 0     2 2018-12-15T18:01:46Z 2018-12-20T18:01:38Z 2018-12-20T18:01:38Z CONTRIBUTOR      

Currently one gets a deprecation warning when using xarray.ufuncs.angle on a DataArray with xarray 0.11 and numpy 1.15, e.g. PendingDeprecationWarning: xarray.ufuncs will be deprecated when xarray no longer supports versions of numpy older than v1.13. Instead, use numpy ufuncs directly. X_tr = xr.ufuncs.angle(X)

however, np.angle still casts the input to ndarray, apparently.

Code Sample, a copy-pastable example if possible

```python

import xarray as xr import numpy as np X = xr.DataArray(np.ones(10)) X <xarray.DataArray (dim_0: 10)> array([1., 1., 1., 1., 1., 1., 1., 1., 1., 1.]) Dimensions without coordinates: dim_0 xr.ufuncs.angle(X) # expected output <xarray.DataArray (dim_0: 10)> array([0., 0., 0., 0., 0., 0., 0., 0., 0., 0.]) Dimensions without coordinates: dim_0 np.angle(X) # actual output array([0., 0., 0., 0., 0., 0., 0., 0., 0., 0.]) np.version '1.15.4' xr.version '0.11.0' np.sin(X) # other ufuns work <xarray.DataArray (dim_0: 10)> array([0.841471, 0.841471, 0.841471, 0.841471, 0.841471, 0.841471, 0.841471, 0.841471, 0.841471, 0.841471]) Dimensions without coordinates: dim_0 ```

Problem description

I have not investigated yet why happens in numpy, but opening this issue to indicate that currently I can't really do much about this DeprecationWarning sort of silencing it (unless I'm missing something).

Output of xr.show_versions()

INSTALLED VERSIONS ------------------ commit: None python: 3.7.1.final.0 python-bits: 64 OS: Linux OS-release: 4.18.8-gentoo machine: x86_64 processor: Intel(R) Core(TM) i5-6200U CPU @ 2.30GHz byteorder: little LC_ALL: None LANG: en_GB.UTF-8 LOCALE: en_GB.UTF-8 xarray: 0.11.0 pandas: 0.23.4 numpy: 1.15.4 scipy: 1.1.0 netCDF4: None h5netcdf: 0.6.2 h5py: 2.8.0 Nio: None zarr: None cftime: None PseudonetCDF: None rasterio: None iris: None bottleneck: None cyordereddict: None dask: 1.0.0 distributed: None matplotlib: 3.0.2 cartopy: None seaborn: None setuptools: 40.6.2 pip: 18.1 conda: None pytest: 4.0.1 IPython: None sphinx: None 
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   completed xarray 13221727 issue

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