added meta field

Author: JoschD

turn_by_turn/__init__.py

@@ -8,7 +8,7 @@
     "Read and write turn-by-turn measurement files from different particle accelerator formats."
 )
 __url__ = "https://github.com/pylhc/turn_by_turn"
-__version__ = "0.9.1"
+__version__ = "0.10.0"
 __author__ = "pylhc"
 __author_email__ = "[email protected]"
 __license__ = "MIT"

turn_by_turn/structures.py

@@ -19,7 +19,7 @@
     import pandas as pd
 
 
-@dataclass
+@dataclass(slots=True)
 class TransverseData:
     """
     Object holding measured turn-by-turn data for both transverse planes in the form of pandas DataFrames.
@@ -39,7 +39,7 @@ def __getitem__(self, item):  # to access X and Y like one would with a dictiona
         return getattr(self, item)
 
 
-@dataclass
+@dataclass(slots=True)
 class TrackingData:
     """
     Object holding multidimensional turn-by-turn simulation data in the form of pandas DataFrames.
@@ -68,7 +68,7 @@ def __getitem__(self, item):  # to access fields like one would with a dictionar
 DataType = TransverseData | TrackingData
 
 
-@dataclass
+@dataclass(slots=True)
 class TbtData:
     """
     Object holding a representation of a Turn-by-Turn data measurement. The date of the measurement,
@@ -79,6 +79,7 @@ class TbtData:
     date: datetime = None  # will default in post_init
     bunch_ids: list[int] = None  # will default in post_init
     nturns: int = None
+    meta: dict | None = None
     nbunches: int = field(init=False)
 
     def __post_init__(self):