drop support for EoL Python 3.9 in bundled lockfiles

build-support/bin/generate_builtin_lockfiles.py

@@ -71,7 +71,7 @@
 logger = logging.getLogger(__name__)
 
 
-default_python_interpreter_constraints = "CPython>=3.9,<3.15"
+default_python_interpreter_constraints = "CPython>=3.10,<3.15"
 
 
 ToolBaseT = TypeVar("ToolBaseT")

docs/notes/2.33.x.md

@@ -76,6 +76,12 @@ Fixed a bug where `--sync`-ing a Pex lockfile with legacy metadata headers faile
 
 Added a default module mapping for `apache-airflow-mypy`, which provides the `airflow_mypy` module.
 
+The default interpreter constraints for bundled tools have been standardized on `>=3.10,<3.15`.  This drops support for Python 3.9 which reached end-of-life on [2025-10-31](https://www.python.org/downloads/release/python-3925/) and support was removed from Pip in [26.1](https://pip.pypa.io/en/stable/news/#v26-1).  If you are specifically relying on a Python 3.8 interpreter to run a tool, or if you require a different version of a tool than the new default, then you will need to generate a custom lockfile for that tool with the appropriate interpreter constraints.  As part of this several default bundled versions have been updated.  Notably this includes:
+ * `mypy`: `1.19.1 -> 1.20.2`
+ * `mypy-protobuf`: `3.6.0 -> 3.7.0`
+ * `coverage`:  `7.10.7 -> 7.14.3`
+ * The version of packaging (`26.2`) and setuptools (`82.x`) was also updated across the bundled lockfiles.
+
 The default version of the sqlfluff in the bundled tool lockfile has been upgraded from `2.3.5` to [`4.1.0`](https://docs.sqlfluff.com/en/stable/reference/releasenotes.html).
 
 #### Protobuf

src/python/pants/backend/cc/lint/clangformat/clangformat.lock

@@ -56,14 +56,14 @@
   "only_wheels": [],
   "overridden": [],
   "path_mappings": {},
-  "pex_version": "2.69.1",
-  "pip_version": "25.3",
+  "pex_version": "2.96.1",
+  "pip_version": "26.1.2",
   "prefer_older_binary": false,
   "requirements": [
     "clang-format<16,>=14.0.3"
   ],
   "requires_python": [
-    "CPython<3.15,>=3.9"
+    "CPython<3.15,>=3.10"
   ],
   "resolver_version": "pip-2020-resolver",
   "style": "universal",

src/python/pants/backend/cc/lint/clangformat/clangformat.lock.metadata

@@ -1,7 +1,7 @@
 {
-  "version": 5,
+  "version": 8,
   "valid_for_interpreter_constraints": [
-    "CPython<3.15,>=3.9"
+    "CPython<3.15,>=3.10"
   ],
   "generated_with_requirements": [
     "clang-format<16,>=14.0.3"
@@ -13,5 +13,10 @@
   "excludes": [],
   "overrides": [],
   "sources": [],
+  "lock_style": "universal",
+  "complete_platforms": [],
+  "uploaded_prior_to": null,
+  "lockfile_format": "pex",
+  "resolve": "clang-format",
   "description": "This lockfile was generated by Pants. To regenerate, run: ./pants run build-support/bin/generate_builtin_lockfiles.py"
 }

src/python/pants/backend/codegen/protobuf/python/grpclib.lock.metadata

@@ -1,7 +1,7 @@
 {
-  "version": 5,
+  "version": 8,
   "valid_for_interpreter_constraints": [
-    "CPython<3.15,>=3.9"
+    "CPython<3.15,>=3.10"
   ],
   "generated_with_requirements": [
     "grpclib[protobuf]<1,>=0.4"
@@ -13,5 +13,10 @@
   "excludes": [],
   "overrides": [],
   "sources": [],
+  "lock_style": "universal",
+  "complete_platforms": [],
+  "uploaded_prior_to": null,
+  "lockfile_format": "pex",
+  "resolve": "python-grpclib-protobuf",
   "description": "This lockfile was generated by Pants. To regenerate, run: ./pants run build-support/bin/generate_builtin_lockfiles.py"
 }

src/python/pants/backend/codegen/protobuf/python/mypy_protobuf.lock

@@ -13,13 +13,13 @@
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-              "url": "https://files.pythonhosted.org/packages/e8/73/d6b999782ae22f16971cc05378b3b33f6a89ede3b9619e8366aa23484bca/mypy_protobuf-3.6.0-py3-none-any.whl"
+              "hash": "85256e9d4da935722ce8fbaa8d19397e1a2989aa8075c96577987de9fe7cea4d",
+              "url": "https://files.pythonhosted.org/packages/69/32/709df4390d155bd72e75f2a9bce6004c2958a21f31817f3a2c7750299f70/mypy_protobuf-3.7.0-py3-none-any.whl"
             },
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               "algorithm": "sha256",
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-              "url": "https://files.pythonhosted.org/packages/4d/6f/282d64d66bf48ce60e38a6560753f784e0f88ab245ac2fb5e93f701a36cd/mypy-protobuf-3.6.0.tar.gz"
+              "hash": "912fb281f7c7b3e3a7c9b8695712618a716fddbab70f6ad63eaf68eda80c5efe",
+              "url": "https://files.pythonhosted.org/packages/99/bd/92ee9e7d2ff30cb57b36bd6f61ee4da8a05acf32f6a6121883b58720e9d4/mypy_protobuf-3.7.0.tar.gz"
             }
           ],
           "project_name": "mypy-protobuf",
@@ -28,63 +28,63 @@
             "types-protobuf>=4.24"
           ],
           "requires_python": ">=3.8",
-          "version": "3.6.0"
+          "version": "3.7.0"
         },
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+              "hash": "4bc97768d8fe4ad6743c8a19403e314511ed9f6d13205b687e52421c023ac1b9",
+              "url": "https://files.pythonhosted.org/packages/19/c7/5f7c636ec43e0c545e28d1f1db71990108306f7bdcb89f069ba97e428e7f/protobuf-7.35.1-py3-none-any.whl"
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+              "url": "https://files.pythonhosted.org/packages/0f/58/dc12f2cd484951524af6e3382c785869b9b3fb5e52ee95ae23add53ee8f9/protobuf-7.35.1-cp310-abi3-manylinux2014_s390x.whl"
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@@ -95,14 +95,14 @@
   "only_wheels": [],
   "overridden": [],
   "path_mappings": {},
-  "pex_version": "2.69.1",
-  "pip_version": "25.3",
+  "pex_version": "2.96.1",
+  "pip_version": "26.1.2",
   "prefer_older_binary": false,
   "requirements": [
     "mypy-protobuf<4,>=3.4.0"
   ],
   "requires_python": [
-    "CPython<3.15,>=3.9"
+    "CPython<3.15,>=3.10"
   ],
   "resolver_version": "pip-2020-resolver",
   "style": "universal",

src/python/pants/backend/codegen/protobuf/python/mypy_protobuf.lock.metadata

@@ -1,7 +1,7 @@
 {
-  "version": 5,
+  "version": 8,
   "valid_for_interpreter_constraints": [
-    "CPython<3.15,>=3.9"
+    "CPython<3.15,>=3.10"
   ],
   "generated_with_requirements": [
     "mypy-protobuf<4,>=3.4.0"
@@ -13,5 +13,10 @@
   "excludes": [],
   "overrides": [],
   "sources": [],
+  "lock_style": "universal",
+  "complete_platforms": [],
+  "uploaded_prior_to": null,
+  "lockfile_format": "pex",
+  "resolve": "mypy-protobuf",
   "description": "This lockfile was generated by Pants. To regenerate, run: ./pants run build-support/bin/generate_builtin_lockfiles.py"
 }

src/python/pants/backend/docker/subsystems/dockerfile.lock

@@ -46,14 +46,14 @@
   "only_wheels": [],
   "overridden": [],
   "path_mappings": {},
-  "pex_version": "2.69.1",
-  "pip_version": "25.3",
+  "pex_version": "2.96.1",
+  "pip_version": "26.1.2",
   "prefer_older_binary": false,
   "requirements": [
     "dockerfile<4,>=3.2.0"
   ],
   "requires_python": [
-    "CPython<3.15,>=3.9"
+    "CPython<3.15,>=3.10"
   ],
   "resolver_version": "pip-2020-resolver",
   "style": "universal",

src/python/pants/backend/docker/subsystems/dockerfile.lock.metadata

@@ -1,7 +1,7 @@
 {
-  "version": 5,
+  "version": 8,
   "valid_for_interpreter_constraints": [
-    "CPython<3.15,>=3.9"
+    "CPython<3.15,>=3.10"
   ],
   "generated_with_requirements": [
     "dockerfile<4,>=3.2.0"
@@ -13,5 +13,10 @@
   "excludes": [],
   "overrides": [],
   "sources": [],
+  "lock_style": "universal",
+  "complete_platforms": [],
+  "uploaded_prior_to": null,
+  "lockfile_format": "pex",
+  "resolve": "dockerfile-parser",
   "description": "This lockfile was generated by Pants. To regenerate, run: ./pants run build-support/bin/generate_builtin_lockfiles.py"
 }