From 9e86bf6b3e92706c190283af83d71999fee03442 Mon Sep 17 00:00:00 2001
From: jaseg <git@jaseg.de>
Date: Wed, 19 Jan 2022 00:36:05 +0100
Subject: Fix old gerber tests

---
 gerbonara/gerber/utils.py | 7 +++++++
 1 file changed, 7 insertions(+)

(limited to 'gerbonara/gerber/utils.py')

diff --git a/gerbonara/gerber/utils.py b/gerbonara/gerber/utils.py
index 533f0a2..f7df4ed 100644
--- a/gerbonara/gerber/utils.py
+++ b/gerbonara/gerber/utils.py
@@ -60,6 +60,13 @@ class LengthUnit:
         else:
             return id(self) == id(other)
 
+    # This class is a singleton, we don't want copies around
+    def __copy__(self):
+        return self
+
+    def __deepcopy__(self, memo):
+        return self
+
 
 MILLIMETERS_PER_INCH = 25.4
 Inch = LengthUnit('inch', 'in', MILLIMETERS_PER_INCH)
-- 
cgit