diff options
-rw-r--r-- | pym/_emerge/__init__.py | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/pym/_emerge/__init__.py b/pym/_emerge/__init__.py index e91abf182..1aff570d0 100644 --- a/pym/_emerge/__init__.py +++ b/pym/_emerge/__init__.py @@ -1608,13 +1608,14 @@ class BlockerDB(object): blocker_atoms = [atom[1:] for atom in atoms \ if atom.startswith("!")] - blocker_atoms = InternalPackageSet(initial_atoms=blocker_atoms) - for inst_pkg in installed_pkgs: - try: - blocker_atoms.iterAtomsForPackage(inst_pkg).next() - except (portage.exception.InvalidDependString, StopIteration): - continue - blocking_pkgs.add(inst_pkg) + if blocker_atoms: + blocker_atoms = InternalPackageSet(initial_atoms=blocker_atoms) + for inst_pkg in installed_pkgs: + try: + blocker_atoms.iterAtomsForPackage(inst_pkg).next() + except (portage.exception.InvalidDependString, StopIteration): + continue + blocking_pkgs.add(inst_pkg) return blocking_pkgs |