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-rw-r--r--pym/portage/dep/__init__.py4
1 files changed, 2 insertions, 2 deletions
diff --git a/pym/portage/dep/__init__.py b/pym/portage/dep/__init__.py
index 0ee52218..542c1768 100644
--- a/pym/portage/dep/__init__.py
+++ b/pym/portage/dep/__init__.py
@@ -519,9 +519,9 @@ class _use_dep(object):
tokens.extend(x for x in self.enabled if x not in other_use)
tokens.extend("-" + x for x in self.disabled if x in other_use)
if conditional:
- if not parent_use:
+ if parent_use is None:
raise InvalidAtom("violated_conditionals needs 'parent_use'" + \
- " parameter for conditional flags: '%s'" % (token,))
+ " parameter for conditional flags.")
tokens.extend(x + "?" for x in conditional.enabled if x in parent_use and not x in other_use)
tokens.extend("!" + x + "?" for x in conditional.disabled if x not in parent_use and x in other_use)
tokens.extend(x + "=" for x in conditional.equal if x in parent_use and x not in other_use)