Fixed linting and test errors for changes in CQ since PR was first opened (#36)

Author: jmwright

plugins/gear_generator/gear_generator/__init__.py

@@ -1 +1 @@
-from .main import *
+from .main import *

plugins/gear_generator/gear_generator/helpers.py

@@ -1,6 +1,7 @@
 from math import cos, sin, radians, acos
 import cadquery as cq
 
+
 def involute(r: float, sign: int = 1):
     """
     Defines an involute curve to create the flanks of the involute gears
@@ -12,12 +13,15 @@ def involute(r: float, sign: int = 1):
     Returns:      
         x,y -> tuple() : 2-tuple of x and y coordinates in space
     """
+
     def curve(t):
-        x = r*(cos(t) + t*sin(t))
-        y = r*(sin(t) - t*cos(t))
-        return x,sign*y
+        x = r * (cos(t) + t * sin(t))
+        y = r * (sin(t) - t * cos(t))
+        return x, sign * y
+
     return curve
 
+
 def spherical_involute(delta, delta_b, R):
     """
     Equation of the spherical involute that lies on a sphere
@@ -30,19 +34,22 @@ def spherical_involute(delta, delta_b, R):
     Returns:      
         x,y,z -> tuple() : 3-tuple of x and y and z coordinates in space  
     """
-    theta = acos(cos(delta)/cos(delta_b))/sin(delta_b)
-    x = R*cos(theta*sin(delta_b))*sin(delta_b)*cos(theta) - R*sin(theta*sin(delta_b))* - sin(theta)
-    y = R*cos(theta*sin(delta_b))*sin(delta_b)*sin(theta) - R*sin(theta*sin(delta_b))* cos(theta)
-    z = R*cos(theta*sin(delta_b))*cos(delta_b)
-    return x,y,z
-
+    theta = acos(cos(delta) / cos(delta_b)) / sin(delta_b)
+    x = R * cos(theta * sin(delta_b)) * sin(delta_b) * cos(theta) - R * sin(
+        theta * sin(delta_b)
+    ) * -sin(theta)
+    y = R * cos(theta * sin(delta_b)) * sin(delta_b) * sin(theta) - R * sin(
+        theta * sin(delta_b)
+    ) * cos(theta)
+    z = R * cos(theta * sin(delta_b)) * cos(delta_b)
+    return x, y, z
 
 
 def rotate_vector_2D(vector: cq.Vector, angle: float):
     """
     Rotates a 2D cq.Vector `vector`by an angle of `angle` in degrees
     """
     angle = radians(angle)
-    x = cos(angle)*vector.x - sin(angle)*vector.y
-    y = sin(angle)*vector.x + cos(angle)*vector.y
-    return cq.Vector((x,y))
+    x = cos(angle) * vector.x - sin(angle) * vector.y
+    y = sin(angle) * vector.x + cos(angle) * vector.y
+    return cq.Vector((x, y))