chore: add pandas to pyproject.toml

Author: iraedeus

pyproject.toml

@@ -27,6 +27,7 @@ matplotlib = ">=3.9.1"
 scikit-learn = ">=1.5.2"
 plotly = "^6.6.0"
 jupyter = "^1.1.1"
+pandas = "^3.0.2"
 
 [tool.poetry.group.dev.dependencies]
 pytest = ">=8.2.2"

pysatl_cpd/core/data_providers/dataset.py

@@ -1,4 +1,3 @@
-# -*- coding: ascii -*-
 """
 Терминология
 -----------
@@ -183,7 +182,7 @@ def feature_columns(self) -> list[str]:
     def change_point(self) -> tuple[int, ...]:
         segments = self.__dataset[SEGMENT_COLUMN].to_numpy(copy=False)
         if len(segments) <= 1:
-            return tuple()
+            return ()
 
         change_points = np.flatnonzero(segments[1:] != segments[:-1]) + 1
         return tuple(int(position) for position in change_points.tolist())