Changed duck typing exception to: (ImportError, AttributeError) (#7874)

* Changed duck typing exception to (ImportError, AttributeError) to allow checking for missing attributes in imported packages

* Updated whats-new.rst with the duck typing exception catch update of PR 7874.

* Remove accidental url in whats-new

* Issue number in whats-new.rst

---------

Co-authored-by: Tom Nicholas <[email protected]>

Author: vhaasteren

doc/whats-new.rst

@@ -51,6 +51,7 @@ Internal Changes
   (:pull:`7847`) By `Tom Nicholas <https://github.com/TomNicholas>`_.
 - Xarray now uploads nightly wheels to https://pypi.anaconda.org/scientific-python-nightly-wheels/simple/.
   By `Martin Fleischmann <https://github.com/martinfleis>`_.
+- Added an exception catch for ``AttributeError`` along with ``ImportError`` when duck typing the dynamic imports in pycompat.py. This catches some name collisions between packages. (:issue:`7870`, :pull:`7874`)
 
 .. _whats-new.2023.05.0:
 

xarray/core/pycompat.py

@@ -50,7 +50,7 @@ def __init__(self, mod: ModType) -> None:
             else:
                 raise NotImplementedError
 
-        except ImportError:  # pragma: no cover
+        except (ImportError, AttributeError):  # pragma: no cover
             duck_array_module = None
             duck_array_version = Version("0.0.0")
             duck_array_type = ()