diff --git a/chimerapy/chimera.py b/chimerapy/chimera.py
index 098bb9e..70730e6 100644
--- a/chimerapy/chimera.py
+++ b/chimerapy/chimera.py
@@ -1,4 +1,5 @@
 """Package for Coronal Hole Identification Algorithm"""
+
 import glob
 import sys
 
diff --git a/chimerapy/chimera_copy.py b/chimerapy/chimera_copy.py
index 32ee6d2..5337e0a 100644
--- a/chimerapy/chimera_copy.py
+++ b/chimerapy/chimera_copy.py
@@ -9,7 +9,6 @@
 import sunpy.map
 from astropy import wcs
 from astropy.modeling.models import Gaussian2D
-from astropy.visualization import astropy_mpl_style
 from skimage.util import img_as_ubyte
 from sunpy.coordinates import (HeliographicStonyhurst,
                                propagate_with_solar_surface)
@@ -84,10 +83,11 @@ def filter(map1: np.array, map2: np.array, map3: np.array):
 
 im171, im193, im211 = filter(im171, im193, im211)
 
+
 def shape(map1: sunpy.map.Map, map2: sunpy.map.Map, map3: sunpy.map.Map):
     """
     defines the shape of the arrays as "s" and "rs" as the solar radius
-    
+
     Parameters
     ----------
     map1: 'sunpy.map.Map'
@@ -99,9 +99,9 @@ def shape(map1: sunpy.map.Map, map2: sunpy.map.Map, map3: sunpy.map.Map):
     s: 'tuple'
     rs: 'astropy.units.quantity.Quantity'
     rs_pixels: 'astropy.units.quantity.Quantity'
-    
+
     """
-    
+
     im171, im193, im211 = filter(map1, map2, map3)
     # defines the shape of the arrays as "s" and "rs" as the solar radius
     s = np.shape(im171.data)
@@ -110,6 +110,7 @@ def shape(map1: sunpy.map.Map, map2: sunpy.map.Map, map3: sunpy.map.Map):
     rs_pixels = im171.rsun_obs / im171.scale[0]
     return s, rs, rs_pixels
 
+
 s, rs, rs_pixels = shape(im171, im193, im211)
 
 
@@ -126,7 +127,7 @@ def pix_arc(amap: sunpy.map.Map):
     """
     dattoarc = amap.scale[0].value
     s = amap.dimensions
-    conver = (s.x/2) * amap.scale[0].value / amap.meta['cdelt1'], (s.y / 2)
+    conver = (s.x / 2) * amap.scale[0].value / amap.meta["cdelt1"], (s.y / 2)
     convermul = dattoarc / amap.meta["cdelt1"]
     return dattoarc, conver, convermul
 
@@ -174,7 +175,7 @@ def to_helio(amap: sunpy.map.Map):
 center = [int(s[1] / 2.0), int(s[1] / 2.0)]
 w = np.where((xgrid - center[0]) ** 2 + (ygrid - center[1]) ** 2 > r**2)
 y, x = np.mgrid[0:1024, 0:1024]
-width = (2000 * u.arcsec)
+width = 2000 * u.arcsec
 garr = Gaussian2D(
     1,
     im171.reference_pixel.x.to_value(u.pix),
@@ -949,9 +950,9 @@ def plot_mask(slate=slate):
         INPUT_FILES["aia171"], INPUT_FILES["aia193"], INPUT_FILES["aia211"], INPUT_FILES["hmi_mag"]
     )
 
-'''
+"""
 Document detailing process summary and all functions/variables:
 
 https://docs.google.com/document/d/1V5LkZq_AAHdTrGsnCl2hoYhm_fvyjfuzODiEHbt4ebo/edit?usp=sharing
 
-'''
+"""
diff --git a/chimerapy/chimera_legacy.py b/chimerapy/chimera_legacy.py
index 4462553..8d1a828 100644
--- a/chimerapy/chimera_legacy.py
+++ b/chimerapy/chimera_legacy.py
@@ -1,7 +1,4 @@
-"""
-
-"""
-
+""" """
 
 import glob
 import sys