fix greenlet support

Author: blink1073

.evergreen/generated_configs/variants.yml

@@ -332,7 +332,7 @@ buildvariants:
   # Green framework tests
   - name: green-gevent-rhel8
     tasks:
-      - name: .test-standard .sync
+      - name: .test-standard .sync !.python-3.14
     display_name: Green Gevent RHEL8
     run_on:
       - rhel87-small

.evergreen/scripts/generate_config.py

@@ -297,7 +297,8 @@ def create_green_framework_variants():
     variants = []
     host = DEFAULT_HOST
     for framework in ["gevent"]:
-        tasks = [".test-standard .sync"]
+        # TODO: link ticket for gevent support, that depends on 3.14 support in pymongocrypt ticket
+        tasks = [".test-standard .sync !.python-3.14"]
         expansions = dict(GREEN_FRAMEWORK=framework)
         display_name = get_variant_name(f"Green {framework.capitalize()}", host)
         variant = create_variant(tasks, display_name, host=host, expansions=expansions)

pyproject.toml

@@ -51,8 +51,7 @@ dev = [
 ]
 doctest = ["sphinx"]
 pip = ["pip"]
-# Install cffi with free-threading and Python 3.14 support
-gevent = ["gevent", "cffi>=2.0.0b1;python_version=='3.14'", "greenlet==3.2.3;python_version=='3.14'"]
+gevent = ["gevent"]
 eventlet = ["eventlet"]
 coverage = [
     "pytest-cov",
@@ -62,7 +61,7 @@ mockupdb = [
     "mockupdb@git+https://github.com/mongodb-labs/mongo-mockup-db@master"
 ]
 pymongocrypt_source = [
-    "pymongocrypt@git+https://github.com/blink1073/libmongocrypt@test-python314#subdirectory=bindings/python"
+    "pymongocrypt@git+https://github.com/mongodb/libmongocrypt@master4#subdirectory=bindings/python"
 ]
 perf = ["simplejson"]
 typing = [