From 3d3db5ddb19d44d942086bb640e527a4d805edf1 Mon Sep 17 00:00:00 2001
From: Chris Maffeo <cmaffeo2@illinois.edu>
Date: Tue, 25 Sep 2018 07:24:50 -0500
Subject: [PATCH] Fixed handling of --draw-* arguments for mrdna script

---
 bin/mrdna | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/bin/mrdna b/bin/mrdna
index 2ec2699..b16ac40 100755
--- a/bin/mrdna
+++ b/bin/mrdna
@@ -24,9 +24,9 @@ parser.add_argument('--fine-steps', type=float, default=1e7,
 parser.add_argument('--backbone-scale', type=float, default=1.0,
                     help='Factor to scale DNA backbone in atomic model; try 0.25 to avoid clashes for atomistic simulations')
 
-parser.add_argument('--draw-cylinders', nargs='?', const=True, type=bool, default=False,
+parser.add_argument('--draw-cylinders', action='store_true',
                     help='Whether or not to draw the cylinders')
-parser.add_argument('--draw-tubes', nargs='?', const=True, type=bool, default=False,
+parser.add_argument('--draw-tubes', action='store_true',
                     help='Whether or not to draw the tubes')
 
 parser.add_argument('input_file', type=str,
-- 
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