Python 3.13 Support (#1226)

* Add Python 3.13 tests to tox

* Fix memcache tests

* Fix agent unittests under developer mode

* Add wheels for 3.13

* Replace PyEval_CallObject with PyObject_Call in C extensions

* Remove Python 2 specific code for C extensions

* Update includes for C extensions for Py 3.13 compatibility

* Add support for setuptools_scm v7 and v8

* Address feedback

* Adding additional tox envs that are now supported

.github/workflows/deploy-python.yml

@@ -37,6 +37,8 @@ jobs:
           - cp311-musllinux
           - cp312-manylinux
           - cp312-musllinux
+          - cp313-manylinux
+          - cp313-musllinux
 
     steps:
       - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # 4.1.1
@@ -48,7 +50,7 @@ jobs:
         uses: docker/setup-qemu-action@68827325e0b33c7199eb31dd4e31fbe9023e06e3 # 3.0.0
 
       - name: Build Wheels
-        uses: pypa/cibuildwheel@8d945475ac4b1aac4ae08b2fd27db9917158b6ce # 2.17.0
+        uses: pypa/cibuildwheel@d4a2945fcc8d13f20a1b99d461b8e844d5fc6e23 # 2.21.1
         env:
           CIBW_PLATFORM: linux
           CIBW_BUILD: "${{ matrix.wheel }}*"

newrelic/common/_monotonic.c

@@ -121,7 +121,6 @@ static PyMethodDef monotonic_methods[] = {
     { NULL, NULL }
 };
 
-#if PY_MAJOR_VERSION >= 3
 static struct PyModuleDef moduledef = {
     PyModuleDef_HEAD_INIT,
     "_monotonic",        /* m_name */
@@ -133,36 +132,24 @@ static struct PyModuleDef moduledef = {
     NULL,                /* m_clear */
     NULL,                /* m_free */
 };
-#endif
 
 static PyObject *
 moduleinit(void)
 {
     PyObject *module;
 
-#if PY_MAJOR_VERSION >= 3
     module = PyModule_Create(&moduledef);
-#else
-    module = Py_InitModule3("_monotonic", monotonic_methods, NULL);
-#endif
 
     if (module == NULL)
         return NULL;
 
     return module;
 }
 
-#if PY_MAJOR_VERSION < 3
-PyMODINIT_FUNC init_monotonic(void)
-{
-    moduleinit();
-}
-#else
 PyMODINIT_FUNC PyInit__monotonic(void)
 {
     return moduleinit();
 }
-#endif
 
 /* ------------------------------------------------------------------------- */
 

newrelic/core/_thread_utilization.c

@@ -16,8 +16,8 @@
 
 /* ------------------------------------------------------------------------- */
 
+#include <sys/time.h>
 #include <Python.h>
-
 #include <pythread.h>
 
 #ifndef PyVarObject_HEAD_INIT
@@ -254,14 +254,10 @@ static PyObject *NRUtilization_enter(NRUtilizationObject *self, PyObject *args)
             PyObject *func = NULL;
 
             dict = PyModule_GetDict(module);
-#if PY_MAJOR_VERSION >= 3
             func = PyDict_GetItemString(dict, "current_thread");
-#else
-            func = PyDict_GetItemString(dict, "currentThread");
-#endif
             if (func) {
                 Py_INCREF(func);
-                thread = PyEval_CallObject(func, (PyObject *)NULL);
+                thread = PyObject_Call(func, (PyObject *)NULL, (PyObject *)NULL);
                 if (!thread)
                     PyErr_Clear();
 
@@ -408,7 +404,6 @@ PyTypeObject NRUtilization_Type = {
 
 /* ------------------------------------------------------------------------- */
 
-#if PY_MAJOR_VERSION >= 3
 static struct PyModuleDef moduledef = {
     PyModuleDef_HEAD_INIT,
     "_thread_utilization", /* m_name */
@@ -420,18 +415,13 @@ static struct PyModuleDef moduledef = {
     NULL,                /* m_clear */
     NULL,                /* m_free */
 };
-#endif
 
 static PyObject *
 moduleinit(void)
 {
     PyObject *module;
 
-#if PY_MAJOR_VERSION >= 3
     module = PyModule_Create(&moduledef);
-#else
-    module = Py_InitModule3("_thread_utilization", NULL, NULL);
-#endif
 
     if (module == NULL)
         return NULL;
@@ -446,16 +436,9 @@ moduleinit(void)
     return module;
 }
 
-#if PY_MAJOR_VERSION < 3
-PyMODINIT_FUNC init_thread_utilization(void)
-{
-    moduleinit();
-}
-#else
 PyMODINIT_FUNC PyInit__thread_utilization(void)
 {
     return moduleinit();
 }
-#endif
 
 /* ------------------------------------------------------------------------- */

setup.py

@@ -61,6 +61,9 @@
 
 
 def newrelic_agent_guess_next_version(tag_version):
+    if hasattr(tag_version, "tag"):  # For setuptools_scm 7.0+
+        tag_version = tag_version.tag
+
     version, _, _ = str(tag_version).partition("+")
     version_info = list(map(int, version.split(".")))
     if len(version_info) < 3:
@@ -142,6 +145,7 @@ def build_extension(self, ext):
     "Programming Language :: Python :: 3.10",
     "Programming Language :: Python :: 3.11",
     "Programming Language :: Python :: 3.12",
+    "Programming Language :: Python :: 3.13",
     "Programming Language :: Python :: Implementation :: CPython",
     "Programming Language :: Python :: Implementation :: PyPy",
     "Topic :: System :: Monitoring",
@@ -155,7 +159,7 @@ def build_extension(self, ext):
         "git_describe_command": "git describe --dirty --tags --long --match *.*.*",
         "write_to": "newrelic/version.txt",
     },
-    setup_requires=["setuptools_scm>=3.2,<7"],
+    setup_requires=["setuptools_scm>=3.2,<9"],
     description="New Relic Python Agent",
     long_description=open(readme_file).read(),
     url="https://docs.newrelic.com/docs/apm/agents/python-agent/",

tests/agent_unittests/test_full_uri_payloads.py

@@ -20,7 +20,10 @@
 from testing_support.fixtures import collector_agent_registration_fixture
 from newrelic.core.agent_protocol import AgentProtocol
 from newrelic.common.agent_http import HttpClient
-from newrelic.core.config import global_settings
+from newrelic.core.config import global_settings, _environ_as_bool
+
+DEVELOPER_MODE = _environ_as_bool("NEW_RELIC_DEVELOPER_MODE", False) or "NEW_RELIC_LICENSE_KEY" not in os.environ
+SKIP_IF_DEVELOPER_MODE = pytest.mark.skipif(DEVELOPER_MODE, reason="Cannot connect to collector in developer mode")
 
 
 class FullUriClient(HttpClient):
@@ -55,10 +58,7 @@ def session(application):
 }
 
 
-@pytest.mark.skipif(
-    "NEW_RELIC_LICENSE_KEY" not in os.environ,
-    reason="License key is not expected to be valid",
-)
+@SKIP_IF_DEVELOPER_MODE
 @pytest.mark.parametrize(
     "method,payload",
     [
@@ -86,10 +86,7 @@ def test_full_uri_payload(session, method, payload):
     protocol.send(method, payload)
 
 
-@pytest.mark.skipif(
-    "NEW_RELIC_LICENSE_KEY" not in os.environ,
-    reason="License key is not expected to be valid",
-)
+@SKIP_IF_DEVELOPER_MODE
 def test_full_uri_connect():
     # An exception will be raised here if there's a problem with the response
     AgentProtocol.connect(

tests/datastore_aiomcache/test_aiomcache.py

@@ -23,13 +23,15 @@
 
 from newrelic.api.background_task import background_task
 from newrelic.api.transaction import set_background_task
+from newrelic.common import system_info
 
 DB_SETTINGS = memcached_settings()[0]
 
 MEMCACHED_HOST = DB_SETTINGS["host"]
 MEMCACHED_PORT = DB_SETTINGS["port"]
 MEMCACHED_NAMESPACE = str(os.getpid())
-INSTANCE_METRIC_NAME = f"Datastore/instance/Memcached/{MEMCACHED_HOST}/{MEMCACHED_PORT}"
+INSTANCE_METRIC_HOST = system_info.gethostname() if MEMCACHED_HOST == "127.0.0.1" else MEMCACHED_HOST
+INSTANCE_METRIC_NAME = f"Datastore/instance/Memcached/{INSTANCE_METRIC_HOST}/{MEMCACHED_PORT}"
 
 _test_bt_set_get_delete_scoped_metrics = [
     ("Datastore/operation/Memcached/set", 1),

tests/datastore_bmemcached/test_memcache.py

@@ -22,14 +22,16 @@
 
 from newrelic.api.background_task import background_task
 from newrelic.api.transaction import set_background_task
+from newrelic.common import system_info
 
 DB_SETTINGS = memcached_settings()[0]
 
 MEMCACHED_HOST = DB_SETTINGS["host"]
 MEMCACHED_PORT = DB_SETTINGS["port"]
 MEMCACHED_NAMESPACE = str(os.getpid())
 MEMCACHED_ADDR = f"{MEMCACHED_HOST}:{MEMCACHED_PORT}"
-INSTANCE_METRIC_NAME = f"Datastore/instance/Memcached/{MEMCACHED_HOST}/{MEMCACHED_PORT}"
+INSTANCE_METRIC_HOST = system_info.gethostname() if MEMCACHED_HOST == "127.0.0.1" else MEMCACHED_HOST
+INSTANCE_METRIC_NAME = f"Datastore/instance/Memcached/{INSTANCE_METRIC_HOST}/{MEMCACHED_PORT}"
 
 _test_bt_set_get_delete_scoped_metrics = [
     ("Datastore/operation/Memcached/set", 1),

tests/datastore_pymemcache/test_memcache.py

@@ -21,13 +21,17 @@
 from newrelic.api.background_task import background_task
 from newrelic.api.transaction import set_background_task
 
+from newrelic.common import system_info
+
 DB_SETTINGS = memcached_settings()[0]
 
 MEMCACHED_HOST = DB_SETTINGS["host"]
 MEMCACHED_PORT = DB_SETTINGS["port"]
 MEMCACHED_NAMESPACE = DB_SETTINGS["namespace"]
-
 MEMCACHED_ADDR = (MEMCACHED_HOST, int(MEMCACHED_PORT))
+INSTANCE_METRIC_HOST = system_info.gethostname() if MEMCACHED_HOST == "127.0.0.1" else MEMCACHED_HOST
+INSTANCE_METRIC_NAME = f"Datastore/instance/Memcached/{INSTANCE_METRIC_HOST}/{MEMCACHED_PORT}"
+
 
 _test_bt_set_get_delete_scoped_metrics = [
     ("Datastore/operation/Memcached/set", 1),
@@ -43,7 +47,7 @@
     ("Datastore/operation/Memcached/set", 1),
     ("Datastore/operation/Memcached/get", 1),
     ("Datastore/operation/Memcached/delete", 1),
-    (f"Datastore/instance/Memcached/{MEMCACHED_HOST}/{MEMCACHED_PORT}", 3),
+    (INSTANCE_METRIC_NAME, 3),
 ]
 
 
@@ -81,7 +85,7 @@ def test_bt_set_get_delete():
     ("Datastore/operation/Memcached/set", 1),
     ("Datastore/operation/Memcached/get", 1),
     ("Datastore/operation/Memcached/delete", 1),
-    (f"Datastore/instance/Memcached/{MEMCACHED_HOST}/{MEMCACHED_PORT}", 3),
+    (INSTANCE_METRIC_NAME, 3),
 ]