diff --git a/src/biocgenerics/show_as_cell.py b/src/biocgenerics/show_as_cell.py
index a7ead7a..cf282a9 100644
--- a/src/biocgenerics/show_as_cell.py
+++ b/src/biocgenerics/show_as_cell.py
@@ -4,13 +4,12 @@
 
 @singledispatch
 def show_as_cell(x: Any, indices: Sequence[int]) -> List[str]:
-    """
-    Show the contents of ``x`` as a cell of a table, typically for use in 
-    the ``__repr__`` method of a class that contains ``x``.
+    """Show the contents of ``x`` as a cell of a table, typically for use in the ``__repr__`` method of a class that
+    contains ``x``.
 
     Args:
-        x: 
-            Any object. By default, we assume that it can be treated as 
+        x:
+            Any object. By default, we assume that it can be treated as
             a sequence, with a valid ``__getitem__`` method for an index.
 
         indices:
@@ -34,12 +33,16 @@ def _get_max_width(col: List[str]):
     return width
 
 
-def format_table(columns: List[Sequence[str]], floating_names: Optional[Sequence[str]] = None, sep: str = " ", window: Optional[int] = None):
-    """
-    Pretty-print a table with wrapping columns.
+def format_table(
+    columns: List[Sequence[str]],
+    floating_names: Optional[Sequence[str]] = None,
+    sep: str = " ",
+    window: Optional[int] = None,
+):
+    """Pretty-print a table with wrapping columns.
 
     Args:
-        columns: 
+        columns:
             List of list of strings, where each inner list is the same length.
             Strings are typically generated by :py:meth:`~show_as_cell`.
 
@@ -59,6 +62,7 @@ def format_table(columns: List[Sequence[str]], floating_names: Optional[Sequence
     """
     if window is None:
         import os
+
         try:
             window = os.get_terminal_size().columns
         except:
@@ -77,11 +81,13 @@ def format_table(columns: List[Sequence[str]], floating_names: Optional[Sequence
         floating_names = new_floating_names
 
     output = ""
+
     def reinitialize():
         if floating_names is None:
-            return [ "" ] * n
+            return [""] * n
         else:
             return floating_names[:]
+
     contents = reinitialize()
     init = True
     used = floatwidth
diff --git a/tests/test_show_as_cell.py b/tests/test_show_as_cell.py
index be6375c..e2c937c 100644
--- a/tests/test_show_as_cell.py
+++ b/tests/test_show_as_cell.py
@@ -2,13 +2,21 @@
 
 
 def test_show_as_cell():
-    assert show_as_cell([1,2,3,4], range(4)) == ["1", "2", "3", "4"]
-    assert show_as_cell([1,2,3,4], [1,3]) == ["2", "4"]
+    assert show_as_cell([1, 2, 3, 4], range(4)) == ["1", "2", "3", "4"]
+    assert show_as_cell([1, 2, 3, 4], [1, 3]) == ["2", "4"]
 
 
 def test_format_table():
-    contents = [ [ "asdasd", "1", "2", "3", "4" ], [""] + ["|"] * 4, ["asyudgausydga", "A", "B", "C", "D"] ]
+    contents = [
+        ["asdasd", "1", "2", "3", "4"],
+        [""] + ["|"] * 4,
+        ["asyudgausydga", "A", "B", "C", "D"],
+    ]
     print(format_table(contents))
-    print(format_table(contents, floating_names = [ "", "aarg", "boo", "ffoo", "stuff" ]))
+    print(format_table(contents, floating_names=["", "aarg", "boo", "ffoo", "stuff"]))
     print(format_table(contents, window=10))
-    print(format_table(contents, window=10, floating_names = [ "", "AAAR", "BBBB", "XXX", "STUFF" ]))
+    print(
+        format_table(
+            contents, window=10, floating_names=["", "AAAR", "BBBB", "XXX", "STUFF"]
+        )
+    )