Add a "is_running" flag to brian2.core.network

brian2/core/network.py

@@ -12,8 +12,12 @@
 
 __all__ = ['Network']
 
+
 logger = get_logger(__name__)
 
+#: A global flag stating whether the network is currently running
+is_running = False
+
 
 class Network(Nameable):
     '''
@@ -348,6 +352,9 @@ def run(self, duration, report=None, report_period=60*second,
         if report is not None:
             start = current = time.time()
             next_report_time = start + 10
+
+        global is_running
+        is_running = True
         while clock.running and not self._stopped and not Network._globally_stopped:
             # update the network time to this clocks time
             self.t_ = clock.t_
@@ -371,7 +378,9 @@ def run(self, duration, report=None, report_period=60*second,
             # with the smallest t value, unless there are several with the 
             # same t value in which case we update all of them
             clock, curclocks = self._nextclocks()
-
+
+        is_running = False
+
         self.t = t_end
 
         if report is not None: