issue_comments: 1250208324
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| html_url | issue_url | id | node_id | user | created_at | updated_at | author_association | body | reactions | performed_via_github_app | issue |
|---|---|---|---|---|---|---|---|---|---|---|---|
| https://github.com/pydata/xarray/pull/7048#issuecomment-1250208324 | https://api.github.com/repos/pydata/xarray/issues/7048 | 1250208324 | IC_kwDOAMm_X85KhKpE | 14371165 | 2022-09-18T07:13:43Z | 2022-09-18T07:15:39Z | MEMBER |
Is it just me that this example crashes the second time I run it? ``` python import numpy as np import pandas as pd import xarray as xr da = xr.DataArray( np.array([1, 2, 3, 1, 2, np.nan]), dims="time", coords=dict( time=("time", pd.date_range("01-01-2001", freq="M", periods=6)), labels=("time", np.array(["a", "b", "c", "c", "b", "a"])), ), ) da.groupby("labels").count() ```
```python
Traceback (most recent call last):
File "C:\Users\J.W\anaconda3\envs\xarray-tests\lib\site-packages\spyder_kernels\py3compat.py", line 356, in compat_exec
exec(code, globals, locals)
File "g:\program\dropbox\python\xarray_groupby_windows_diff.py", line 34, in <module>
da.groupby("labels").count()
File "c:\users\j.w\documents\github\xarray\xarray\core\_reductions.py", line 4384, in count
return self._flox_reduce(
File "c:\users\j.w\documents\github\xarray\xarray\core\groupby.py", line 738, in _flox_reduce
result = xarray_reduce(
File "C:\Users\J.W\anaconda3\envs\xarray-tests\lib\site-packages\flox\xarray.py", line 240, in xarray_reduce
ds, *by = xr.broadcast(ds, *by, exclude=exclude_dims)
File "c:\users\j.w\documents\github\xarray\xarray\core\alignment.py", line 1046, in broadcast
args = align(*args, join="outer", copy=False, exclude=exclude)
File "c:\users\j.w\documents\github\xarray\xarray\core\alignment.py", line 765, in align
aligner.align()
File "c:\users\j.w\documents\github\xarray\xarray\core\alignment.py", line 549, in align
self.find_matching_indexes()
File "c:\users\j.w\documents\github\xarray\xarray\core\alignment.py", line 256, in find_matching_indexes
obj_indexes, obj_index_vars = self._normalize_indexes(obj.xindexes)
File "c:\users\j.w\documents\github\xarray\xarray\core\alignment.py", line 205, in _normalize_indexes
pd_idx = safe_cast_to_index(data)
File "c:\users\j.w\documents\github\xarray\xarray\core\utils.py", line 140, in safe_cast_to_index
index = pd.Index(np.asarray(array), **kwargs)
File "C:\Users\J.W\anaconda3\envs\xarray-tests\lib\site-packages\pandas\core\indexes\base.py", line 483, in __new__
data = sanitize_array(data, None, dtype=dtype, copy=copy)
File "C:\Users\J.W\anaconda3\envs\xarray-tests\lib\site-packages\pandas\core\construction.py", line 524, in sanitize_array
raise ValueError("index must be specified when data is not list-like")
ValueError: index must be specified when data is not list-like
```
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