[pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

Author: pre-commit-ci[bot]

Diff for: grits/coarsegrain.py

@@ -727,7 +727,7 @@ def save(self, cg_gsdfile, start=0, stop=None, stride=1):
                 new_snap = gsd.hoomd.Frame()
                 position = []
                 mass = []
-                #make an empty list for forces here
+                # make an empty list for forces here
                 forces = []
                 orientation = [] if self.aniso_beads else None
                 f_box = freud.Box.from_box(s.configuration.box)
@@ -741,7 +741,7 @@ def save(self, cg_gsdfile, start=0, stop=None, stride=1):
                         sum(s.particles.mass[x]) * self.mass_scale for x in inds
                     ]
 
-                    #do the force calculation here
+                    # do the force calculation here
 
                     if self.aniso_beads:
                         for x in inds: