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FileMgr: Only remove callback if it exists.

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(cherry picked from commit 4a49948)
This commit is contained in:
Gina Häußge 2015-08-14 14:06:22 +02:00
parent 5f53b704dd
commit ed215fc5fa
1 changed files with 5 additions and 1 deletions
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6
src/octoprint/filemanager/__init__.py
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@ -155,7 +155,11 @@ class FileManager(object):
self._slicing_progress_callbacks.append(callback)
def unregister_slicingprogress_callback(self, callback):
self._slicing_progress_callbacks.remove(callback)
try:
self._slicing_progress_callbacks.remove(callback)
except ValueError:
# callback was not registered
pass
def _determine_analysis_backlog(self, storage_type, storage_manager):
counter = 0