stay with setuptools for now

.github/workflows/test-python.yml

@@ -33,6 +33,7 @@ jobs:
           tox -m lint-manual
       - name: Run compilation
         run: |
+          export PYMONGO_C_EXT_MUST_BUILD=1
           pip install -v -e .
           python tools/fail_if_no_c.py
       - name: Run typecheck

hatch_build.py

@@ -4,54 +4,9 @@
 import os
 import subprocess
 import sys
-import warnings
 from pathlib import Path
 
 from hatchling.builders.hooks.plugin.interface import BuildHookInterface
-from scikit_build_core.cmake import CMake
-
-warning_message = """
-********************************************************************
-WARNING: %s could not
-be compiled. No C extensions are essential for PyMongo to run,
-although they do result in significant speed improvements.
-%s
-
-Please see the installation docs for solutions to build issues:
-
-https://pymongo.readthedocs.io/en/stable/installation.html
-
-Here are some hints for popular operating systems:
-
-If you are seeing this message on Linux you probably need to
-install GCC and/or the Python development package for your
-version of Python.
-
-Debian and Ubuntu users should issue the following command:
-
-    $ sudo apt-get install build-essential python-dev
-
-Users of Red Hat based distributions (RHEL, CentOS, Amazon Linux,
-Oracle Linux, Fedora, etc.) should issue the following command:
-
-    $ sudo yum install gcc python-devel
-
-If you are seeing this message on Microsoft Windows please install
-PyMongo using pip. Modern versions of pip will install PyMongo
-from binary wheels available on pypi. If you must install from
-source read the documentation here:
-
-https://pymongo.readthedocs.io/en/stable/installation.html#installing-from-source-on-windows
-
-If you are seeing this message on macOS / OSX please install PyMongo
-using pip. Modern versions of pip will install PyMongo from binary
-wheels available on pypi. If wheels are not available for your version
-of macOS / OSX, or you must install from source read the documentation
-here:
-
-https://pymongo.readthedocs.io/en/stable/installation.html#osx
-********************************************************************
-"""
 
 
 class CustomHook(BuildHookInterface):
@@ -64,46 +19,7 @@ def initialize(self, version, build_data):
         here = Path(__file__).parent.resolve()
         sys.path.insert(0, str(here))
 
-        if "--no_ext" in sys.argv or os.environ.get("NO_EXT"):
-            try:
-                sys.argv.remove("--no_ext")
-            except ValueError:
-                pass
-            return
-        elif sys.platform == "cli" or "PyPy" in sys.version:
-            sys.stdout.write(
-                """
-        *****************************************************\n
-        The optional C extensions are currently not supported\n
-        by this python implementation.\n
-        *****************************************************\n
-        """
-            )
-            return
-
-        # Handle CMake invocation.
-        try:
-            cmake = CMake.default_search(env=os.environ)
-            cmake_build = here / "cmake_build"
-            cmake_build.mkdir(parents=True, exist_ok=True)
-            subprocess.check_call([cmake, "-DCMAKE_BUILD_TYPE=Release", ".."], cwd=str(cmake_build))
-            subprocess.check_call([cmake, "--build", "."], cwd=str(cmake_build))
-            subprocess.check_call(
-                [cmake, "--install", ".", "--prefix", str(here)], cwd=str(cmake_build)
-            )
-        except Exception:
-            if os.environ.get("PYMONGO_C_EXT_MUST_BUILD"):
-                raise
-            e = sys.exc_info()[1]
-            sys.stdout.write("%s\n" % str(e))
-            warnings.warn(
-                warning_message
-                % (
-                    "Extension modules",
-                    "There was an issue with your platform configuration - see above.",
-                ),
-                stacklevel=2,
-            )
+        subprocess.check_call([sys.executable, "setup.py", "build_ext", "-i"])
 
         # Ensure wheel is marked as binary and contains the binary files.
         build_data["infer_tag"] = True

pyproject.toml

@@ -1,5 +1,5 @@
 [build-system]
-requires = ["hatchling>1.24","scikit_build_core","hatch-requirements-txt>=0.4.1"]
+requires = ["hatchling>1.24","setuptools>=65.0","hatch-requirements-txt>=0.4.1"]
 build-backend = "hatchling.build"
 
 [project]