Use base ImportError not MoudleNotFoundError when trying to see if the (pydata#6154)

modules load

Author: hmaarrfk

xarray/backends/h5netcdf_.py

@@ -35,7 +35,10 @@
     import h5netcdf
 
     has_h5netcdf = True
-except ModuleNotFoundError:
+except ImportError:
+    # Except a base ImportError (not ModuleNotFoundError) to catch usecases
+    # where errors have mismatched versions of c-dependencies. This can happen
+    # when developers are making changes them.
     has_h5netcdf = False
 
 

xarray/backends/netCDF4_.py

@@ -33,7 +33,10 @@
     import netCDF4
 
     has_netcdf4 = True
-except ModuleNotFoundError:
+except ImportError:
+    # Except a base ImportError (not ModuleNotFoundError) to catch usecases
+    # where errors have mismatched versions of c-dependencies. This can happen
+    # when developers are making changes them.
     has_netcdf4 = False