diff --git a/chandra_aca/aca_image.py b/chandra_aca/aca_image.py
index 2fef721..4565212 100644
--- a/chandra_aca/aca_image.py
+++ b/chandra_aca/aca_image.py
@@ -43,7 +43,6 @@ def _operator_factory(operator, inplace=False):
     inplace_op = op if inplace else getattr(np.ndarray, "__i{}__".format(operator))
 
     def _operator(self, other):
-
         if isinstance(other, ACAImage) and (other._aca_coords or self._aca_coords):
             # If inplace then work on the original self, else use a copy
             out = self if inplace else self.copy()
@@ -61,7 +60,6 @@ def _operator(self, other):
                     other.col0 + sz_c1 - self.col0,
                 ]
             ):
-
                 dr = other.row0 - self.row0
                 dc = other.col0 - self.col0
 
@@ -133,7 +131,6 @@ def aca(self):
         return obj
 
     def __new__(cls, *args, **kwargs):
-
         meta = kwargs.pop("meta", {})
 
         # Set default row0 and col0 to 0 (if not already in meta), and
@@ -462,7 +459,6 @@ def flicker_update(self, dt, use_numba=True):
             self._flicker_update_vectorized(dt)
 
     def _flicker_update_vectorized(self, dt):
-
         self.flicker_times[self.flicker_mask_vals] -= dt
 
         # When flicker_times < 0 that means a flicker occurs
diff --git a/chandra_aca/tests/test_maude_decom.py b/chandra_aca/tests/test_maude_decom.py
index 48428d3..2481f37 100755
--- a/chandra_aca/tests/test_maude_decom.py
+++ b/chandra_aca/tests/test_maude_decom.py
@@ -632,7 +632,6 @@ def test_dynbgd_decom():
                 raw_frames[key], combine=True, start=start, stop=stop
             )
             for slot in range(8):
-
                 assert np.all(
                     partial_packets[key][
                         "TIME", "VCDUCTR", "IMGTYPE", "BGDTYP", "PIXTLM"
diff --git a/chandra_aca/transform.py b/chandra_aca/transform.py
index 370d4e2..24a121e 100644
--- a/chandra_aca/transform.py
+++ b/chandra_aca/transform.py
@@ -212,7 +212,6 @@ def yagzag_to_pixels(yang, zang, allow_bad=False, pix_zero_loc="edge"):
 
 
 def _poly_convert(y, z, coeffs, t_aca=None):
-
     # Convert to avoid overflow errors with the polys on int32
     y = np.asarray(y, dtype=np.float64)
     z = np.asarray(z, dtype=np.float64)