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-rw-r--r--pym/portage/dep.py3
1 files changed, 2 insertions, 1 deletions
diff --git a/pym/portage/dep.py b/pym/portage/dep.py
index 3d3b5d954..41d6b128b 100644
--- a/pym/portage/dep.py
+++ b/pym/portage/dep.py
@@ -19,6 +19,7 @@
#
import re, sys, types
+import weakref
from itertools import chain
import portage.exception
from portage.exception import InvalidData, InvalidAtom
@@ -412,7 +413,7 @@ class Atom(object):
"""
__metaclass__ = _AtomCache
- _atoms = {}
+ _atoms = weakref.WeakValueDictionary()
_str_methods = ("endswith", "find", "index", "lstrip", "replace",
"startswith", "strip", "rindex", "rfind", "rstrip", "__getitem__",