explicitely support Py3.6 -> Py3.13 (#213)

Author: a-detiste

.github/workflows/tox.yml

@@ -14,7 +14,7 @@ jobs:
     strategy:
       max-parallel: 4
       matrix:
-        python-version: ['3.6', '3.7', '3.8', '3.9', '3.10', '3.11', '3.12']
+        python-version: ['3.6', '3.7', '3.8', '3.9', '3.10', '3.11', '3.12', '3.13']
         pandas-presence: ['with_pandas', 'without_pandas']
     env:
       PYTHON_VERSION: ${{ matrix.python-version }}

README.md

@@ -32,7 +32,7 @@ building design matrices. Patsy brings the convenience of [R](http://www.r-proje
 
 ## Dependencies
 
-  * Python (3.3+)
+  * Python (3.6+)
   * numpy
   * Optional:
     * pytest/pytest-cov: needed to run tests

setup.py

@@ -29,6 +29,7 @@
     extras_require={
       "test": ["pytest", "pytest-cov", "scipy"],
     },
+    python_requires='>=3.6',
     classifiers=[
       "Development Status :: 4 - Beta",
       "Intended Audience :: Developers",
@@ -43,6 +44,7 @@
       "Programming Language :: Python :: 3.10",
       "Programming Language :: Python :: 3.11",
       "Programming Language :: Python :: 3.12",
+      "Programming Language :: Python :: 3.13",
       "Topic :: Scientific/Engineering",
     ],
 )