diff options
| -rw-r--r-- | pym/_emerge/__init__.py | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/pym/_emerge/__init__.py b/pym/_emerge/__init__.py index cc7191ba4..fb3bd1e35 100644 --- a/pym/_emerge/__init__.py +++ b/pym/_emerge/__init__.py @@ -1642,6 +1642,8 @@ class AsynchronousTask(SlotObject): self._start_listeners.append(f) def removeStartListener(self, f): + if self._start_listeners is None: + return self._start_listeners.remove(f) def _start_hook(self): @@ -1661,6 +1663,8 @@ class AsynchronousTask(SlotObject): self._exit_listeners.append(f) def removeExitListener(self, f): + if self._exit_listeners is None: + return self._exit_listeners.remove(f) def _wait_hook(self): |