MAINT: Bump minimum versions

Bump minimum versions
Switch to Cython 3 branch
Fix deprecations

arch/bootstrap/_samplers.pyx

@@ -1,5 +1,5 @@
 #!python
-#cython: language_level=3, boundscheck=False, wraparound=False, cdivision=True, binding=True
+
 
 import numpy as np
 

arch/univariate/recursions.pyx

@@ -1,13 +1,15 @@
 #!python
-#cython: language_level=3, boundscheck=False, wraparound=False, cdivision=True, binding=True
+
 
 import numpy as np
 
 cimport numpy as np
 from libc.float cimport DBL_MAX
 from libc.math cimport exp, fabs, lgamma, log, sqrt
 
-DEF SQRT2_OV_PI = 0.79788456080286535587989211
+cdef:
+    double SQRT2_OV_PI = 0.79788456080286535587989211
+
 
 __all__ = [
     "harch_recursion",
@@ -34,7 +36,7 @@ cdef double LNSIGMA_MAX = log(DBL_MAX)
 
 np.import_array()
 
-cdef inline void bounds_check(double* sigma2, double* var_bounds):
+cdef inline void bounds_check(double* sigma2, const double* var_bounds):
     if sigma2[0] < var_bounds[0]:
         sigma2[0] = var_bounds[0]
     elif sigma2[0] > var_bounds[1]:

pyproject.toml

@@ -5,7 +5,7 @@ requires = [
   "setuptools_scm[toml]>=7,<8",
   "oldest-supported-numpy",
   "numpy; python_version>='3.12'",
-  "Cython>=0.29.32"
+  "cython>=3.0.0b2"
 ]
 build-backend = "setuptools.build_meta"
 

requirements-dev.txt

@@ -1,9 +1,9 @@
 # versioning
-setuptools_scm>=6.4.2,<7.0.0
+setuptools_scm[toml]>=7,<8
 packaging
 
 # Performance
-cython>=0.29.30
+cython>=3.0.0b2
 numba>=0.49,!=0.50.*
 
 # Graphics
@@ -23,12 +23,11 @@ mypy
 
 # Documentation
 ipython>=7
-sphinx >=5,<6
+sphinx>=7
 sphinx_immaterial
 nbsphinx
 jupyter
 notebook
 nbconvert
-numpydoc>=0.9.2
 sphinx-autodoc-typehints
-pygments>=2.7.4 # not directly required, pinned by Snyk to avoid a vulnerability
+

requirements.txt

@@ -1,5 +1,5 @@
-numpy>=1.17
-scipy>=1.3
-pandas>=1.0
-statsmodels>=0.11
+numpy>=1.19
+scipy>=1.5
+pandas>=1.1
+statsmodels>=0.12
 property_cached>=1.6.4

setup.py

@@ -114,7 +114,8 @@ def run_setup(binary: bool = True) -> None:
 """
         )
     else:
-        directives = {"linetrace": CYTHON_COVERAGE}
+        directives = {'language_level' : "3", "cpow": True, "linetrace": CYTHON_COVERAGE,
+                      "boundscheck": False, "wraparound": False, "cdivision":True, "binding":True}
         macros = [("NPY_NO_DEPRECATED_API", "NPY_1_7_API_VERSION")]
         if CYTHON_COVERAGE:
             macros.append(("CYTHON_TRACE", "1"))
@@ -178,9 +179,10 @@ def run_setup(binary: bool = True) -> None:
             "Development Status :: 5 - Production/Stable",
             "Intended Audience :: End Users/Desktop",
             "Intended Audience :: Financial and Insurance Industry",
-            "Programming Language :: Python :: 3.7",
             "Programming Language :: Python :: 3.8",
             "Programming Language :: Python :: 3.9",
+            "Programming Language :: Python :: 3.10",
+            "Programming Language :: Python :: 3.11",
             "License :: OSI Approved",
             "Operating System :: MacOS :: MacOS X",
             "Operating System :: Microsoft :: Windows",