diff --git a/coco/_version.py b/coco/_version.py
index 1a4a64f..a54920c 100644
--- a/coco/_version.py
+++ b/coco/_version.py
@@ -56,7 +56,7 @@ class NotThisMethod(Exception):
 
 
 def register_vcs_handler(vcs, method):  # decorator
-    """Decorator to mark a method as the handler for a particular VCS."""
+    """Mark a method as the handler for a particular VCS (decorator)."""
 
     def decorate(f):
         """Store f in HANDLERS[vcs][method]."""
diff --git a/coco/state.py b/coco/state.py
index 5bc7196..6b44984 100644
--- a/coco/state.py
+++ b/coco/state.py
@@ -184,7 +184,9 @@ def read_from_file(self, path, file):
             if len(path) != 0:
                 element, name = self._find_new(path)
 
-            new_state = load_config_file(file, return_dict=True, dump=False, jinja_options=None)
+            new_state = load_config_file(
+                file, return_dict=True, dump=False, jinja_options=None
+            )
 
             # Don't load state parts that are excluded from reset
             self._exclude_paths(path, new_state)
@@ -194,8 +196,6 @@ def read_from_file(self, path, file):
             else:
                 element[name] = new_state
 
-
-
     def _exclude_paths(self, path, state):
         """
         Remove excluded paths from a state (in-place).
diff --git a/requirements.txt b/requirements.txt
index 9348b55..4c53a75 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,5 @@
 comet @ git+https://github.com/chime-experiment/comet.git@ael/fixjson#egg=comet
-kotekan @ git+https://github.com/kotekan/kotekan.git@develop#egg=kotekan&subdirectory=python/
+kotekan @ git+https://github.com/kotekan/kotekan.git@ael/py3_only#egg=kotekan&subdirectory=python/
 aiohttp
 pyyaml
 requests
diff --git a/tests/test_state.py b/tests/test_state.py
index 283bfe1..81ca9b6 100644
--- a/tests/test_state.py
+++ b/tests/test_state.py
@@ -41,7 +41,7 @@ def test_exclude():
 def test_jinja(tmpdir):
     """Test that .j2 files are parsed properly."""
 
-    pytest.importorskip('jinja2')
+    pytest.importorskip("jinja2")
 
     state_path = tmpdir
     test_state = state.State(
@@ -60,7 +60,7 @@ def test_jinja(tmpdir):
         """
     )
 
-    with open(tmpdir / "testfile.j2", 'w') as ofile:
+    with open(tmpdir / "testfile.j2", "w") as ofile:
         ofile.write(jinja_code)
 
     test_state.read_from_file("res", tmpdir / "testfile.j2")