diff --git a/pyart/correct/phase_proc.py b/pyart/correct/phase_proc.py
index 2d76473035..27b6901f1c 100644
--- a/pyart/correct/phase_proc.py
+++ b/pyart/correct/phase_proc.py
@@ -108,7 +108,11 @@ def fzl_index(fzl, ranges, elevation, radar_height):
     p_r = 4.0 * Re / 3.0
     z = (
         radar_height
-        + (ranges**2 + p_r**2 + 2.0 * ranges * p_r * np.sin(elevation * np.pi / 180.0))
+        + (
+            ranges**2
+            + p_r**2
+            + 2.0 * ranges * p_r * np.sin(elevation * np.pi / 180.0)
+        )
         ** 0.5
         - p_r
     )
diff --git a/pyart/retrieve/qvp.py b/pyart/retrieve/qvp.py
index 11a621ad23..b4a6b4a63e 100644
--- a/pyart/retrieve/qvp.py
+++ b/pyart/retrieve/qvp.py
@@ -24,7 +24,7 @@
     _update_qvp_metadata
     _update_along_coord_metadata
 
-""" "" ""
+""" "" "" "" "" "" "" "" ""
 
 from copy import deepcopy
 from warnings import warn
diff --git a/pyart/util/radar_utils.py b/pyart/util/radar_utils.py
index dd57eaad9f..ba7063a98c 100644
--- a/pyart/util/radar_utils.py
+++ b/pyart/util/radar_utils.py
@@ -414,17 +414,17 @@ def subset_radar(
 
     if radar_aux.instrument_parameters is not None:
         if "nyquist_velocity" in radar_aux.instrument_parameters:
-            radar_aux.instrument_parameters["nyquist_velocity"]["data"] = (
-                radar_aux.instrument_parameters["nyquist_velocity"]["data"][ind_rays]
-            )
+            radar_aux.instrument_parameters["nyquist_velocity"][
+                "data"
+            ] = radar_aux.instrument_parameters["nyquist_velocity"]["data"][ind_rays]
         if "pulse_width" in radar_aux.instrument_parameters:
-            radar_aux.instrument_parameters["pulse_width"]["data"] = (
-                radar_aux.instrument_parameters["pulse_width"]["data"][ind_rays]
-            )
+            radar_aux.instrument_parameters["pulse_width"][
+                "data"
+            ] = radar_aux.instrument_parameters["pulse_width"]["data"][ind_rays]
         if "number_of_pulses" in radar_aux.instrument_parameters:
-            radar_aux.instrument_parameters["number_of_pulses"]["data"] = (
-                radar_aux.instrument_parameters["number_of_pulses"]["data"][ind_rays]
-            )
+            radar_aux.instrument_parameters["number_of_pulses"][
+                "data"
+            ] = radar_aux.instrument_parameters["number_of_pulses"]["data"][ind_rays]
 
     # Get new fields
     if field_names is None: