zhengruifeng opened a new pull request, #48592:
URL: https://github.com/apache/spark/pull/48592
### What changes were proposed in this pull request?
Fix type check for Numpy 1.x: `np.isdtype` is not available in Numpy 1.x
### Why are the changes needed?
```
In [13]: np.__version__
Out[13]: '1.26.4'
In [14]: a = np.str_("123")
In [15]: np.isdtype(a.dtype, np.str_)
---------------------------------------------------------------------------
AttributeError Traceback (most recent call last)
Cell In[15], line 1
----> 1 np.isdtype(a.dtype, np.str_)
File ~/.dev/venv/py_312/lib/python3.12/site-packages/numpy/__init__.py:333,
in __getattr__(attr)
330 "Removed in NumPy 1.25.0"
331 raise RuntimeError("Tester was removed in NumPy 1.25.")
--> 333 raise AttributeError("module {!r} has no attribute "
334 "{!r}".format(__name__, attr))
AttributeError: module 'numpy' has no attribute 'isdtype'
In [16]: a.dtype.type == np.dtype("str")
Out[16]: True
```
### Does this PR introduce _any_ user-facing change?
no
### How was this patch tested?
ci
### Was this patch authored or co-authored using generative AI tooling?
no
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