Add os import

Author: elpaso

tests/src/python/test_qgstaskmanager.py

@@ -12,6 +12,9 @@
 # This will get replaced with a git SHA1 when you do a git archive
 __revision__ = '$Format:%H$'
 
+import os
+from time import sleep
+
 import qgis  # NOQA
 
 from qgis.core import QgsTask, QgsApplication
@@ -20,7 +23,6 @@
 from qgis.PyQt.QtTest import QSignalSpy
 
 from qgis.testing import start_app, unittest
-from time import sleep
 
 start_app()