PEP8 modifications

babyai/levels/verifier.py

@@ -22,7 +22,7 @@ def dot_product(v1, v2):
     Compute the dot product of the vectors v1 and v2.
     """
 
-    return sum([i*j for i, j in zip(v1, v2)])
+    return sum([i * j for i, j in zip(v1, v2)])
 
 
 def pos_next_to(pos_a, pos_b):
@@ -142,7 +142,7 @@ def find_matching_objs(self, env, use_location=True):
                         continue
 
                     # Direction from the agent to the object
-                    v = (i-env.start_pos[0], j-env.start_pos[1])
+                    v = (i - env.start_pos[0], j - env.start_pos[1])
 
                     # (d1, d2) is an oriented orthonormal basis
                     d1 = DIR_TO_VEC[env.start_dir]
@@ -156,7 +156,7 @@ def find_matching_objs(self, env, use_location=True):
                         "behind": dot_product(v, d1) < 0
                     }
 
-                    if not(pos_matches[self.loc]):
+                    if not (pos_matches[self.loc]):
                         continue
 
                 if use_location:
@@ -207,7 +207,6 @@ def update_objs_poss(self):
                 getattr(self, attr).find_matching_objs(self.env, use_location=False)
 
 
-
 class ActionInstr(Instr):
     """
     Base class for all action instructions (clauses)