From 37e49b132cc005fcdcfce6baba873becce8dfbf9 Mon Sep 17 00:00:00 2001
From: Tomasz Nycz <tomasz.merkato@gmail.com>
Date: Wed, 26 Jul 2017 15:21:05 +0200
Subject: [PATCH] Repair bad index checking

isinstance(object, classinfo) checks only if object has correct python type, not value. Let's try this with more traditional method ;)
---
 contrib/visveg/vegind.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/contrib/visveg/vegind.py b/contrib/visveg/vegind.py
index e5966fb3..62554657 100644
--- a/contrib/visveg/vegind.py
+++ b/contrib/visveg/vegind.py
@@ -17,7 +17,8 @@ try:
     typ = sys.argv[2]
     (fileRoot, fileExt) = os.path.splitext(file)
     outFileName = fileRoot + "_" + typ + fileExt
-    isinstance(typ, ['vari', 'tgi', 'ngrdi'])
+    if typ not in ['vari', 'tgi', 'ngrdi']:
+        raise IndexError
 except (TypeError, IndexError, NameError):
     print bcolors.FAIL + 'Arguments messed up. Check arguments order and index name' + bcolors.ENDC
     print 'Usage: ./vegind.py orto index'