drop NumPy 1.x support

Signed-off-by: Martijn Govers <[email protected]>

Author: mgovers

pyproject.toml

@@ -28,7 +28,7 @@ classifiers=[
 ]
 requires-python = ">=3.11"
 dependencies = [
-    "numpy>=1.20",
+    "numpy>=2.0",
     "openpyxl",
     "pandas",
     "power_grid_model>=1.8",

tests/utils.py

@@ -4,14 +4,12 @@
 
 import sys
 from copy import copy, deepcopy
-from importlib import metadata
 from itertools import chain
 from typing import Any, Dict, List, Mapping, MutableMapping, Optional, Tuple
 from unittest.mock import MagicMock
 
 import numpy as np
 import pandas as pd
-from packaging import version
 from pandas.core.generic import NDFrame
 
 
@@ -74,9 +72,6 @@ class MockFn:
 
     __array_struct__ = np.array([]).__array_struct__
 
-    if version.Version(metadata.version("numpy")) < version.Version("2"):
-        __array_prepare__ = np.array([]).__array_prepare__  # type: ignore[attr-defined]
-
     def __init__(self, fn: str, *args, **kwargs):
         self.fn = fn
         self.args = list(args)