def _removeConditions(self, all):
'''
Removes registered conditions. All of them if all is True or only one-shot
conditions if all is False.
@param all: Remove all conditions (True) or just one-shot conditions
(False)?
@type all: boolean
'''
for cond, survive in self.conditions.items():
if not survive or all:
try:
EventManager.removeCondition(cond)
del self.conditions[cond]
except ValueError:
pass
