Update batchrunner, datacollector and solara to use model.steps

instead of model._steps

Author: EwoutH

mesa/batchrunner.py

@@ -132,14 +132,14 @@ def _model_run_func(
     """
     run_id, iteration, kwargs = run
     model = model_cls(**kwargs)
-    while model.running and model._steps <= max_steps:
+    while model.running and model.steps <= max_steps:
         model.step()
 
     data = []
 
-    steps = list(range(0, model._steps, data_collection_period))
-    if not steps or steps[-1] != model._steps - 1:
-        steps.append(model._steps - 1)
+    steps = list(range(0, model.steps, data_collection_period))
+    if not steps or steps[-1] != model.steps - 1:
+        steps.append(model.steps - 1)
 
     for step in steps:
         model_data, all_agents_data = _collect_data(model, step)

mesa/datacollection.py

@@ -180,7 +180,7 @@ def _record_agents(self, model):
         rep_funcs = self.agent_reporters.values()
 
         def get_reports(agent):
-            _prefix = (agent.model._steps, agent.unique_id)
+            _prefix = (agent.model.steps, agent.unique_id)
             reports = tuple(rep(agent) for rep in rep_funcs)
             return _prefix + reports
 
@@ -216,7 +216,7 @@ def collect(self, model):
 
         if self.agent_reporters:
             agent_records = self._record_agents(model)
-            self._agent_records[model._steps] = list(agent_records)
+            self._agent_records[model.steps] = list(agent_records)
 
     def add_table_row(self, table_name, row, ignore_missing=False):
         """Add a row dictionary to a specific table.

mesa/visualization/solara_viz.py

@@ -244,7 +244,7 @@ def do_step():
         """Advance the model by one step."""
         model.step()
         previous_step.value = current_step.value
-        current_step.value = model._steps
+        current_step.value = model.steps
 
     def do_play():
         """Run the model continuously."""