From 6a2924fa1262fc73360a21a4584669c2ae067173 Mon Sep 17 00:00:00 2001
From: Daniel Rojas <github@danielrojas.net>
Date: Thu, 9 Jul 2020 18:10:38 +0200
Subject: [PATCH] Check for duplicate pin numbers and raise an exception

Closes #72.
---
 src/wireviz/DataClasses.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/wireviz/DataClasses.py b/src/wireviz/DataClasses.py
index 52ff983..4469417 100644
--- a/src/wireviz/DataClasses.py
+++ b/src/wireviz/DataClasses.py
@@ -51,6 +51,9 @@ class Connector:
         if not self.pinout:
             self.pinout = [''] * self.pincount
 
+        if len(self.pinnumbers) != len(set(self.pinnumbers)):
+            raise Exception('Pin numbers are not unique')
+
     def loop(self, from_pin, to_pin):
         self.loops.append((from_pin, to_pin))
         if self.hide_disconnected_pins: