From 66a11081bfa8d9f873ab21ee011404262adedb2b Mon Sep 17 00:00:00 2001
From: Eric Brunson <brunson@brunson.com>
Date: Mon, 24 Oct 2016 08:00:52 -0600
Subject: prevent mutating opts while iterating (#21)

Mutating a dict while iterating over its keys causes a RuntimeError
in python 3.  This update creates a list of keys to iterate over.
---
 ptr.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'ptr.py')

diff --git a/ptr.py b/ptr.py
index 2e4ac3b..52fb7b4 100644
--- a/ptr.py
+++ b/ptr.py
@@ -165,7 +165,7 @@ class PyTest(orig.test):
 			'find_links', 'site_dirs', 'index_url', 'optimize',
 			'site_dirs', 'allow_hosts'
 		)
-		for key in opts.keys():
+		for key in list(opts.keys()):
 			if key not in keep:
 				del opts[key]   # don't use any other settings
 		if main_dist.dependency_links:
-- 
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