Fix tracer period type hint

openfisca_core/tracers/full_tracer.py

@@ -29,13 +29,13 @@ def __init__(self) -> None:
     def record_calculation_start(
             self,
             variable: str,
-            period: Period,
+            period: str,
             ) -> None:
         self._simple_tracer.record_calculation_start(variable, period)
         self.enter_calculation(variable, period)
         self.record_start_time()
 
-    def enter_calculation(self, variable: str, period: Period) -> None:
+    def enter_calculation(self, variable: str, period: str) -> None:
         new_node = tracers.TraceNode(
             name = variable,
             period = period,
@@ -53,7 +53,7 @@ def enter_calculation(self, variable: str, period: Period) -> None:
     def record_parameter_access(
             self,
             parameter: str,
-            period: Period,
+            period: str,
             value: ArrayLike,
             ) -> None:
 

openfisca_core/tracers/simple_tracer.py

@@ -18,7 +18,7 @@ class SimpleTracer:
     def __init__(self) -> None:
         self._stack = []
 
-    def record_calculation_start(self, variable: str, period: Period) -> None:
+    def record_calculation_start(self, variable: str, period: str) -> None:
         self.stack.append({'name': variable, 'period': period})
 
     def record_calculation_result(self, value: ArrayLike) -> None:

openfisca_core/tracers/trace_node.py

@@ -17,7 +17,7 @@
 @dataclasses.dataclass
 class TraceNode:
     name: str
-    period: Period
+    period: str
     parent: typing.Optional[TraceNode] = None
     children: typing.List[TraceNode] = dataclasses.field(default_factory = list)
     parameters: typing.List[TraceNode] = dataclasses.field(default_factory = list)