diff --git a/doc/conf.py b/doc/conf.py
index 11abda6bb63..578f9cf550d 100644
--- a/doc/conf.py
+++ b/doc/conf.py
@@ -25,7 +25,7 @@
 os.environ["PYTHONPATH"] = str(root)
 sys.path.insert(0, str(root))
 
-import xarray
+import xarray  # isort:skip
 
 allowed_failures = set()
 
diff --git a/properties/test_pandas_roundtrip.py b/properties/test_pandas_roundtrip.py
index a8005d319d6..5fc097f1f5e 100644
--- a/properties/test_pandas_roundtrip.py
+++ b/properties/test_pandas_roundtrip.py
@@ -1,20 +1,20 @@
 """
 Property-based tests for roundtripping between xarray and pandas objects.
 """
-import pytest
-
-pytest.importorskip("hypothesis")
-
 from functools import partial
-import hypothesis.extra.numpy as npst
-import hypothesis.extra.pandas as pdst
-import hypothesis.strategies as st
-from hypothesis import given
 
 import numpy as np
 import pandas as pd
+import pytest
+
 import xarray as xr
 
+pytest.importorskip("hypothesis")
+import hypothesis.extra.numpy as npst  # isort:skip
+import hypothesis.extra.pandas as pdst  # isort:skip
+import hypothesis.strategies as st  # isort:skip
+from hypothesis import given  # isort:skip
+
 numeric_dtypes = st.one_of(
     npst.unsigned_integer_dtypes(), npst.integer_dtypes(), npst.floating_dtypes()
 )
diff --git a/xarray/core/dataset.py b/xarray/core/dataset.py
index 92a64508104..82ddc8a535f 100644
--- a/xarray/core/dataset.py
+++ b/xarray/core/dataset.py
@@ -92,8 +92,8 @@
     IndexVariable,
     Variable,
     as_variable,
-    broadcast_variables,
     assert_unique_multiindex_level_names,
+    broadcast_variables,
 )
 
 if TYPE_CHECKING:
diff --git a/xarray/core/duck_array_ops.py b/xarray/core/duck_array_ops.py
index 98b371ab7c3..3fa97f0b448 100644
--- a/xarray/core/duck_array_ops.py
+++ b/xarray/core/duck_array_ops.py
@@ -11,7 +11,7 @@
 import numpy as np
 import pandas as pd
 
-from . import dask_array_ops, dask_array_compat, dtypes, npcompat, nputils
+from . import dask_array_compat, dask_array_ops, dtypes, npcompat, nputils
 from .nputils import nanfirst, nanlast
 from .pycompat import dask_array_type
 
diff --git a/xarray/core/parallel.py b/xarray/core/parallel.py
index e4fb5803191..facfa06b23c 100644
--- a/xarray/core/parallel.py
+++ b/xarray/core/parallel.py
@@ -13,8 +13,8 @@
 from typing import (
     Any,
     Callable,
-    Dict,
     DefaultDict,
+    Dict,
     Hashable,
     Mapping,
     Sequence,
diff --git a/xarray/tests/test_accessor_dt.py b/xarray/tests/test_accessor_dt.py
index 67ca12532c7..f178720a6e1 100644
--- a/xarray/tests/test_accessor_dt.py
+++ b/xarray/tests/test_accessor_dt.py
@@ -11,8 +11,7 @@
     requires_cftime,
     requires_dask,
 )
-
-from .test_dask import raise_if_dask_computes, assert_chunks_equal
+from .test_dask import assert_chunks_equal, raise_if_dask_computes
 
 
 class TestDatetimeAccessor:
diff --git a/xarray/tests/test_units.py b/xarray/tests/test_units.py
index 2cb1550c088..6f9128839a7 100644
--- a/xarray/tests/test_units.py
+++ b/xarray/tests/test_units.py
@@ -7,6 +7,7 @@
 import xarray as xr
 from xarray.core import formatting
 from xarray.core.npcompat import IS_NEP18_ACTIVE
+
 from .test_variable import VariableSubclassobjects
 
 pint = pytest.importorskip("pint")