xarray-contrib · TomNicholas · Jun 16, 2022 · Sep 22, 2021 · Apr 29, 2022 · Apr 29, 2022
diff --git a/ci/doc.yml b/ci/doc.yml
@@ -4,7 +4,7 @@ channels:
 dependencies:
   - pip
   - python>=3.8
-  - xarray>=0.20.2
+  - xarray>=2022.05.0.dev0
   - netcdf4
   - scipy
   - sphinx

diff --git a/ci/environment.yml b/ci/environment.yml
@@ -4,7 +4,7 @@ channels:
   - nodefaults
 dependencies:
   - python>=3.8
-  - xarray>=0.20.2
+  - xarray>=2022.05.0.dev0
   - netcdf4
   - pytest
   - flake8

diff --git a/datatree/__init__.py b/datatree/__init__.py
@@ -6,7 +6,7 @@
 # import public API
 from .datatree import DataTree
 from .io import open_datatree
-from .mapping import map_over_subtree
+from .mapping import TreeIsomorphismError, map_over_subtree
 
 try:
     __version__ = get_distribution(__name__).version