Allow slicing an Assembly with a boolean mask

Author: Andrew Davison

pyNN/common/populations.py

@@ -442,8 +442,8 @@ def record(self, variables, to_file=None, sampling_interval=None):
         multiple of the simulation timestep.
         """
         if variables is None:  # reset the list of things to record
-                              # note that if record(None) is called on a view of a population
-                              # recording will be reset for the entire population, not just the view
+                               # note that if record(None) is called on a view of a population
+                               # recording will be reset for the entire population, not just the view
             self.recorder.reset()
         else:
             logger.debug("%s.record('%s')", self.label, variables)
@@ -1144,7 +1144,7 @@ def __getitem__(self, index):
             pindex = boundaries[1:].searchsorted(index, side='right')
             return self.populations[pindex][index - boundaries[pindex]]
         elif isinstance(index, (slice, tuple, list, numpy.ndarray)):
-            if isinstance(index, slice):
+            if isinstance(index, slice) or index.dtype == bool:
                 indices = numpy.arange(self.size)[index]
             else:
                 indices = numpy.array(index)