In LazyItemsDict, avoid storing empty lists and dicts when no positional or

keyword arguments are given. (trunk r12700)

svn path=/main/branches/2.1.6/; revision=12955

1 files changed, 8 insertions, 0 deletions

diff --git a/pym/portage/util.py b/pym/portage/util.py
index a8dbf6c27..2cb14b34d 100644
--- a/pym/portage/util.py
+++ b/pym/portage/util.py
@@ -1072,6 +1072,10 @@ class LazyItemsDict(dict):
 	def addLazyItem(self, item_key, value_callable, *pargs, **kwargs):
 		"""Add a lazy item for the given key.  When the item is requested,
 		value_callable will be called with *pargs and **kwargs arguments."""
+		if not pargs:
+			pargs = None
+		if not kwargs:
+			kwargs = None
 		self.lazy_items[item_key] = (value_callable, pargs, kwargs)
 		# make it show up in self.keys(), etc...
 		dict.__setitem__(self, item_key, None)
@@ -1094,6 +1098,10 @@ class LazyItemsDict(dict):
 	def __getitem__(self, item_key):
 		if item_key in self.lazy_items:
 			value_callable, pargs, kwargs = self.lazy_items[item_key]
+			if pargs is None:
+				pargs = ()
+			if kwargs is None:
+				kwargs = {}
 			return value_callable(*pargs, **kwargs)
 		else:
 			return dict.__getitem__(self, item_key)