update deps for np2 build

pyproject.toml

@@ -2,9 +2,10 @@
 requires = [
     "setuptools>=64",
     "setuptools_scm>=7",
-    "oldest-supported-numpy",
-    "scipy>=1.1.0,<2",
-    "Cython>=0.28.3,<3.0",
+    "numpy>=2.0.0rc1,<2.3; python_version >= '3.9'",
+    "oldest-supported-numpy; python_version < '3.9'",
+    "Cython>=3.0.10,<3.1.0",
+    "scipy>=1.13.0,<2",
 ]
 build-backend = "setuptools.build_meta"
 
@@ -46,21 +47,21 @@ classifiers = [
     "Topic :: Utilities",
 ]
 dependencies = [
-    "numpy>=1.14.5,<2",
+    "numpy>=1.20.0",
     "scipy>=1.1.0,<2",
 ]
 
 [project.optional-dependencies]
 doc = [
-    "gstools>=1.3,<2",
+    "gstools>=1.4,<2",
     "pillow",
     "scikit-learn>=0.19",
     "m2r2>=0.2.8",
     "matplotlib>=3",
     "numpydoc>=1.1",
-    "sphinx>=4",
+    "sphinx>=7",
     "sphinx-gallery>=0.8",
-    "sphinx-rtd-theme>=1",
+    "sphinx-rtd-theme>=2",
 ]
 plot = ["matplotlib>=3,<4"]
 sklearn = ["scikit-learn>=0.19"]
@@ -69,6 +70,12 @@ test = [
     "scikit-learn>=0.19",
     "gstools>=1.4,<2",
 ]
+lint = [
+    "black>=23,<24",
+    "pylint",
+    "isort[colors]",
+    "cython-lint",
+]
 
 [project.urls]
 Changelog = "https://github.com/GeoStat-Framework/PyKrige/blob/main/CHANGELOG.md"
@@ -92,7 +99,16 @@ profile = "black"
 multi_line_output = 3
 
 [tool.black]
-target-version = ["py38"]
+target-version = [
+    "py38",
+    "py39",
+    "py310",
+    "py311",
+    "py312",
+]
+
+[tool.cython-lint]
+max-line-length = 100
 
 [tool.coverage]
     [tool.coverage.run]
@@ -121,6 +137,7 @@ target-version = ["py38"]
     [tool.pylint.message_control]
     disable = [
         "R0801",
+        "C0103",  # lots of invalid variable names
     ]
 
     [tool.pylint.reports]
@@ -138,11 +155,9 @@ target-version = ["py38"]
 # Switch to using build
 build-frontend = "build"
 # Disable building PyPy wheels on all platforms, 32bit for py3.10/11/12 and musllinux builds, py3.6/7
-skip = ["cp36-*", "cp37-*", "pp*", "cp31*-win32", "cp31*-manylinux_i686", "*-musllinux_*"]
+skip = ["cp36-*", "cp37-*", "pp*", "*-win32", "*-manylinux_i686", "*-musllinux_*"]
 # Run the package tests using `pytest`
 test-extras = "test"
 test-command = "pytest -v {package}/tests"
 # Skip trying to test arm64 builds on Intel Macs
 test-skip = "*-macosx_arm64 *-macosx_universal2:arm64"
-# no wheels for linux-32bit anymore for numpy>=1.22
-environment = "PIP_PREFER_BINARY=1"