From: Zac Medico <zmedico@gentoo.org>
Date: Fri, 20 Aug 2010 22:32:13 +0000 (-0700)
Subject: Make varexpand() create a new empty dict for variable expansions in
X-Git-Tag: v2.2_rc68~49
X-Git-Url: http://git.tremily.us/?a=commitdiff_plain;h=5bb4ab9957ada3eb044c1d3a740930aa8fd67833;p=portage.git

Make varexpand() create a new empty dict for variable expansions in
case one is not passed in. This will prevent some potentially
confusing behavior.
---

diff --git a/pym/portage/util/__init__.py b/pym/portage/util/__init__.py
index 8b110f8a8..b5ae524b0 100644
--- a/pym/portage/util/__init__.py
+++ b/pym/portage/util/__init__.py
@@ -498,7 +498,9 @@ def getconfig(mycfg, tolerant=0, allow_sourcing=False, expand=True):
 	
 #cache expansions of constant strings
 cexpand={}
-def varexpand(mystring, mydict={}):
+def varexpand(mystring, mydict=None):
+	if mydict is None:
+		mydict = {}
 	newstring = cexpand.get(" "+mystring, None)
 	if newstring is not None:
 		return newstring