Project metadata: Remove setup.py. Improve Python compatibility.

Author: amotl

devtools/create_tag.sh

@@ -48,7 +48,7 @@ fi
 
 # check if tag to create has already been created
 WORKING_DIR=`dirname $0`
-VERSION=`python setup.py --version`
+VERSION=`hatch project metadata version`
 EXISTS=`git tag | grep $VERSION`
 
 if [ "$VERSION" == "$EXISTS" ]

pyproject.toml

@@ -1,5 +1,5 @@
 [build-system]
-requires = ["hatchling >= 1.26"]
+requires = ["hatchling"]
 build-backend = "hatchling.build"
 
 [tool.hatch.build.targets.wheel]
@@ -13,7 +13,7 @@ name = "crate-python"
 dynamic = ["version"]
 description = "CrateDB Python Client"
 authors = [{ name = "Crate.io", email = "[email protected]" }]
-requires-python = ">=3.10"
+requires-python = ">=3.6"
 readme = "README.rst"
 license = "Apache-2.0"
 classifiers = [
@@ -29,24 +29,28 @@ classifiers = [
         "Programming Language :: Python :: 3.14",
         "Programming Language :: Python :: Implementation :: CPython",
         "Programming Language :: Python :: Implementation :: PyPy",
+        "Programming Language :: SQL",
         "Topic :: Database",
+        "Topic :: Internet :: WWW/HTTP",
+        "Topic :: Scientific/Engineering :: Interface Engine/Protocol Translator",
+        "Topic :: System :: Networking",
 ]
 dependencies = [
-    "orjson>=3.11.3",
+    "orjson",
     "urllib3",
     "verlib2>=0.3.1",
 ]
 
 [dependency-groups]
 dev = [
-    "certifi>=2025.10.5",
+    "backports.zoneinfo<1; python_version<'3.9'",
+    "certifi",
     "coverage<8",
     "mypy<1.19",
     "poethepoet<1",
     "pytest<9",
-    "pytz>=2025.2",
+    "pytz",
     "ruff<0.15",
-    "setuptools>=80.9.0",
     "stopit<1.2",
 ]
 

requirements.txt

@@ -1,3 +1,3 @@
 zc.buildout==5.1.1
-zope.interface==8.1.1
+zope.interface>=8
 zope.testrunner>=5,<8

setup.py

@@ -221,6 +221,8 @@ def duration(self):
     def _convert_rows(self):
         """
         Iterate rows, apply type converters, and generate converted rows.
+
+        Works only on Python >= 3.10.
         """
         if not ("col_types" in self._result and self._result["col_types"]):
             raise ValueError(
@@ -238,7 +240,7 @@ def _convert_rows(self):
         for row in self._result["rows"]:
             yield [
                 convert(value)
-                for convert, value in zip(converters, row, strict=False)
+                for convert, value in zip(converters, row, strict=False)  # type: ignore[call-overload]
             ]
 
     @property