Use kwargs 3

tzis/tzis.py

@@ -18,7 +18,7 @@ class Tzis():
                  mf_dset=None,
                  varname=None,
                  verbose=False,
-                 xarray_kwargs=kwargs
+                 xarray_kwargs=None
                 ) :
         self.auth = {
             "preauthurl": os_url,
@@ -27,7 +27,7 @@ class Tzis():
         self.store=SwiftStore(os_container, prefix=os_name, storage_options=self.auth)
         self.verbose=verbose
         #
-        self.mf_dset=self.open_mf_dataset(mf_dset, **kwargs)
+        self.mf_dset=self.open_mf_dataset(mf_dset, xarray_kwargs)
         self.varname=self._get_varname(varname)
     
     def open_mf_dataset(self, mf, kwargs):