added ExcellonFile class

1 files changed, 6 insertions, 3 deletions

diff --git a/gerber/render/apertures.py b/gerber/render/apertures.py
index 55e6a30..f163b1f 100644
--- a/gerber/render/apertures.py
+++ b/gerber/render/apertures.py
@@ -29,7 +29,7 @@ class Aperture(object):
     """
     def draw(self, ctx, x, y):
         raise NotImplementedError('The draw method must be implemented in an Aperture subclass.')
-    
+
     def flash(self, ctx, x, y):
         raise NotImplementedError('The flash method must be implemented in an Aperture subclass.')
 
@@ -40,19 +40,22 @@ class Circle(Aperture):
     def __init__(self, diameter=0.0):
         self.diameter = diameter
 
+
 class Rect(Aperture):
     """ Rectangular Aperture base class
     """
     def __init__(self, size=(0, 0)):
         self.size = size
 
+
 class Obround(Aperture):
     """ Obround Aperture base class
     """
     def __init__(self, size=(0, 0)):
         self.size = size
-    
+
+
 class Polygon(Aperture):
     """ Polygon Aperture base class
     """
-    pass
\ No newline at end of file
+    pass