fix: support pre-release versions and add new toolchain versions (bazel-contrib#2969)

aignas · rickeylev · web-flow · commit 9b8f6501e8b8 · 2025-06-12T02:51:50.000Z
Add latest toolchain builds and attempt adding a beta build. This shows/tests that we can handle pre-release versions just fine and we are able to test the toolchain matching. Whilst at it it implements the static advertising of the remaining interpreter information. Fixes bazel-contrib#2837 --------- Co-authored-by: Richard Levasseur <richardlev@gmail.com>
diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -55,6 +55,12 @@ END_UNRELEASED_TEMPLATE
 {#1-5-0-changed}
 ### Changed
 
+* (toolchain) Bundled toolchain version updates:
+    * 3.9 now references 3.9.23
+    * 3.10 now references 3.10.18
+    * 3.11 now references 3.11.13
+    * 3.12 now references 3.12.11
+    * 3.13 now references 3.13.4
 * (rules) On Windows, {obj}`--bootstrap_impl=system_python` is forced. This
   allows setting `--bootstrap_impl=script` in bazelrc for mixed-platform
   environments.
@@ -92,6 +98,8 @@ END_UNRELEASED_TEMPLATE
 * (pypi) Correctly aggregate the sources when the hashes specified in the lockfile differ
   by platform even though the same version is used. Fixes [#2648](https://github.com/bazel-contrib/rules_python/issues/2648).
 * (pypi) `compile_pip_requirements` test rule works behind the proxy
+* (toolchains) The hermetic toolchains now correctly statically advertise the
+  `releaselevel` and `serial` for pre-release hermetic toolchains ({gh-issue}`2837`).
 
 {#1-5-0-added}
 ### Added
@@ -114,6 +122,7 @@ END_UNRELEASED_TEMPLATE
 * (rules) Added support for a using constraints files with `compile_pip_requirements`.
   Useful when an intermediate dependency needs to be upgraded to pull in
   security patches.
+* (toolchains): 3.14.0b2 has been added as a preview.
 
 {#1-5-0-removed}
 ### Removed
diff --git a/python/private/hermetic_runtime_repo_setup.bzl b/python/private/hermetic_runtime_repo_setup.bzl
@@ -195,6 +195,14 @@ def define_hermetic_runtime_toolchain_impl(
         values = {"collect_code_coverage": "true"},
         visibility = ["//visibility:private"],
     )
+    if not version_info.pre:
+        releaselevel = "final"
+    else:
+        releaselevel = {
+            "a": "alpha",
+            "b": "beta",
+            "rc": "candidate",
+        }.get(version_info.pre[0])
 
     py_runtime(
         name = "py3_runtime",
@@ -204,6 +212,8 @@ def define_hermetic_runtime_toolchain_impl(
             "major": str(version_info.release[0]),
             "micro": str(version_info.release[2]),
             "minor": str(version_info.release[1]),
+            "releaselevel": releaselevel,
+            "serial": str(version_info.pre[1]) if version_info.pre else "0",
         },
         coverage_tool = select({
             # Convert empty string to None
diff --git a/python/versions.bzl b/python/versions.bzl
@@ -186,6 +186,21 @@ TOOL_VERSIONS = {
         },
         "strip_prefix": "python",
     },
+    "3.9.23": {
+        "url": "20250610/cpython-{python_version}+20250610-{platform}-{build}.tar.gz",
+        "sha256": {
+            "aarch64-apple-darwin": "f1a60528b6088ee8b8a34ca0e960998f4f664bed300ec0bbfe9d66ccbda74e50",
+            "aarch64-unknown-linux-gnu": "2871cf240bce3c021de829d73da04026febd7a775d1a1a1b37603ec6419fb6c1",
+            "ppc64le-unknown-linux-gnu": "2ba44a8e084a4661dbe50c0f0e3cf0a57227c6f1cff13fc2ae2f4d8ceae699fc",
+            "riscv64-unknown-linux-gnu": "7a735aebfc8b19a8af1f03e28babaf18a46cf8db0a931343dac1269376a1f693",
+            "s390x-unknown-linux-gnu": "27cfc030f782e2683c664e41dcef36051467c98676e133cbef04d4b7155ac4aa",
+            "x86_64-apple-darwin": "debd576badb6fdabb793ec9956512102f5a813c837449b1fe007c0af977db36c",
+            "x86_64-pc-windows-msvc": "28fbf2026929e00a300466220917c7029a69331700badb34b1691f1a99aa38e3",
+            "x86_64-unknown-linux-gnu": "21440e51aee78f3d92faf9375a90713542d8332e83d94c284f8f3d52c58eb5ca",
+            "x86_64-unknown-linux-musl": "7a881405a41cb4edf8c0d7c469c2f4759f601bc6f3c47978424a1ab1d0f1fada",
+        },
+        "strip_prefix": "python",
+    },
     "3.10.2": {
         "url": "20220227/cpython-{python_version}+20220227-{platform}-{build}.tar.gz",
         "sha256": {
@@ -321,6 +336,21 @@ TOOL_VERSIONS = {
         },
         "strip_prefix": "python",
     },
+    "3.10.18": {
+        "url": "20250610/cpython-{python_version}+20250610-{platform}-{build}.tar.gz",
+        "sha256": {
+            "aarch64-apple-darwin": "a6590f71f670c7d121ac4f068dc83e271cf03309b80b1fa5890ee4875b7b691d",
+            "aarch64-unknown-linux-gnu": "b4d7cfb2cb5163da1ae5955ae8b33ac0b356780483d2993099899cf59efaea70",
+            "ppc64le-unknown-linux-gnu": "36aeae5cc61ff07c78b061f1b6aac628998a380ad45fadc82b8764185544fd7f",
+            "riscv64-unknown-linux-gnu": "2f6dd270598b655db5da5d98d1c43e560f6fb46c67a8fd68ff9b11ee9f6d79ff",
+            "s390x-unknown-linux-gnu": "616e56fe69c97a1d0ff13c00f337b2a91c972323c5d9a1828fdfc4d764b440fa",
+            "x86_64-apple-darwin": "4d72c1c1dcd2c4fe80055ef1b24fe4146f2de938aea1e3676faf91476f3f17e8",
+            "x86_64-pc-windows-msvc": "867b6dbcdb71d8ebb709ff54fbca8ad43d05cc21e5c157f39745c4dc44c1f8e2",
+            "x86_64-unknown-linux-gnu": "58f88ed6117078fdbc98976c9bc83b918f1f9c0c2ec21b80a582104f4839861c",
+            "x86_64-unknown-linux-musl": "d782c0569d6d7e21a5ed195ad7b41d0af8456b031e0814714d18cdeaa876f262",
+        },
+        "strip_prefix": "python",
+    },
     "3.11.1": {
         "url": "20230116/cpython-{python_version}+20230116-{platform}-{build}.tar.gz",
         "sha256": {
@@ -436,18 +466,18 @@ TOOL_VERSIONS = {
         },
         "strip_prefix": "python",
     },
-    "3.11.11": {
-        "url": "20250317/cpython-{python_version}+20250317-{platform}-{build}.tar.gz",
+    "3.11.13": {
+        "url": "20250610/cpython-{python_version}+20250610-{platform}-{build}.tar.gz",
         "sha256": {
-            "aarch64-apple-darwin": "19b147c7e4b742656da4cb6ba35bc3ea2f15aa5f4d1bbbc38d09e2e85551e927",
-            "aarch64-unknown-linux-gnu": "7d52b5206afe617de2899af477f5a1d275ecbce80fb8300301b254ebf1da5a90",
-            "ppc64le-unknown-linux-gnu": "17c049f70ce719adc89dd0ae26f4e6a28f6aaedc63c2efef6bbb9c112ea4d692",
-            "riscv64-unknown-linux-gnu": "83ed50713409576756f5708e8f0549a15c17071bea22b71f15e11a7084f09481",
-            "s390x-unknown-linux-gnu": "298507f1f8d962b1bb98cb506c99e7e0d291a63eb9117e1521141e6b3825fd56",
-            "x86_64-apple-darwin": "a870cd965e7dded5100d13b1d34cab1c32a92811e000d10fbfe9bbdb36cdaa0e",
-            "x86_64-pc-windows-msvc": "1cf5760eea0a9df3308ca2c4111b5cc18fd638b2a912dbe07606193e3f9aa123",
-            "x86_64-unknown-linux-gnu": "51e47bc0d1b9f4bf68dd395f7a39f60c58a87cde854cab47264a859eb666bb69",
-            "x86_64-unknown-linux-musl": "ee4d84f992c6a1df42096e26b970fe5938fd6c1eadd245894bc94c5737ff9977",
+            "aarch64-apple-darwin": "365037494ba4f53563c22292e49a8e4d0d495bcb6534fca9666bdd1b474abf36",
+            "aarch64-unknown-linux-gnu": "a5954f147e87d9bff3d9733ebb3e74fe997eec5b38eaf5cb4429038228962a16",
+            "ppc64le-unknown-linux-gnu": "9214126866418f290fda88832fa3e244630f918ebc8a4a9ee15ba922e9c98afd",
+            "riscv64-unknown-linux-gnu": "fd99008c3123f50ec2ad407c5c1e17c1a86590daaf88dae8e6f1fd28f099b7c2",
+            "s390x-unknown-linux-gnu": "e27ab1fff8bf9e507677252a03ed524c685a8629b56475e26ab6dd0f88465179",
+            "x86_64-apple-darwin": "b49044115a545e67d73f5265a613a25da7c9523431281aa7b94691f1013355af",
+            "x86_64-pc-windows-msvc": "c0f89e3776211147817d54084fa046e2603571e18ff2ae4a4a8ff84ca4f7defc",
+            "x86_64-unknown-linux-gnu": "d93a7699505ee0ac7dec0f09324ffb19a31cce3066a287bb1fe95285ce3ea0c7",
+            "x86_64-unknown-linux-musl": "499121bb917e5baeeb954f76bdbce36bb63af579ff1530966ae2280e8d812c5b",
         },
         "strip_prefix": "python",
     },
@@ -559,6 +589,21 @@ TOOL_VERSIONS = {
         },
         "strip_prefix": "python",
     },
+    "3.12.11": {
+        "url": "20250610/cpython-{python_version}+20250610-{platform}-{build}.tar.gz",
+        "sha256": {
+            "aarch64-apple-darwin": "9c5826a93ddc15e8aa08de1e6e65b3ae0d45ea8eb0c2e9547b80ff4121b870ce",
+            "aarch64-unknown-linux-gnu": "eb33bc5a87443daf2fd218109df811bc4e4ea5ef9aec4fad75aa55da0258b96f",
+            "ppc64le-unknown-linux-gnu": "7b90bc528c5ddf30579dec52926d68fa6d5c90b65e24fc185d5fe283fdf0cbd9",
+            "riscv64-unknown-linux-gnu": "0f3103675102e351762a8fe574eae20335552a246a45a006d2a9ca14ce0952f8",
+            "s390x-unknown-linux-gnu": "a7ff0432208450ccebd5d328f69b84cc7c25b4af54fbab44803ddb11a2da5028",
+            "x86_64-apple-darwin": "199631baa35f3747ddfa2f1e28fc062b97ccd15b94a60c9294d4d129a73c9e53",
+            "x86_64-pc-windows-msvc": "e05fa165841c416d60365ca2216cad570f05ae5d3d027b9ad3beaad0529dd8cc",
+            "x86_64-unknown-linux-gnu": "77ab3efe5c6637fe8da0fdfbff5de1730c3b824874fe1368917886908b4c517b",
+            "x86_64-unknown-linux-musl": "9dd768494c4a34abcec316bc4802e957db98ed283024b527c0c40dfefd08b6fe",
+        },
+        "strip_prefix": "python",
+    },
     "3.13.0": {
         "url": "20241016/cpython-{python_version}+20241016-{platform}-{build}.{ext}",
         "sha256": {
@@ -674,16 +719,99 @@ TOOL_VERSIONS = {
             "x86_64-unknown-linux-gnu-freethreaded": "python/install",
         },
     },
+    "3.13.4": {
+        "url": "20250610/cpython-{python_version}+20250610-{platform}-{build}.{ext}",
+        "sha256": {
+            "aarch64-apple-darwin": "c2ce6601b2668c7bd1f799986af5ddfbff36e88795741864aba6e578cb02ed7f",
+            "aarch64-unknown-linux-gnu": "3c2596ece08ffe17e11bc1f27aeb4ce1195d2490a83d695d36ef4933d5c5ca53",
+            "ppc64le-unknown-linux-gnu": "b3cc13ee177b8db1d3e9b2eac413484e3c6a356f97d91dc59de8d3fd8cf79d6b",
+            "riscv64-unknown-linux-gnu": "d1b989e57a9ce29f6c945eeffe0e9750c222fdd09e99d2f8d6b0d8532a523053",
+            "s390x-unknown-linux-gnu": "d1d19fb01961ac6476712fdd6c5031f74c83666f6f11aa066207e9a158f7e3d8",
+            "x86_64-apple-darwin": "79feb6ca68f3921d07af52d9db06cf134e6f36916941ea850ab0bc20f5ff638b",
+            "x86_64-pc-windows-msvc": "29ac3585cc2dcfd79e3fe380c272d00e9d34351fc456e149403c86d3fea34057",
+            "x86_64-unknown-linux-gnu": "44e5477333ebca298a7a0a316985c6c3533b8645f92a83f7f73c44033832bf32",
+            "x86_64-unknown-linux-musl": "a3afbfa94b9ff4d9fc426b47eb3c8446cada535075b8d51b7bdc9d9ab9911fc2",
+            "aarch64-apple-darwin-freethreaded": "278dccade56b4bbeecb9a613b77012cf5c1433a5e9b8ef99230d5e61f31d9e02",
+            "aarch64-unknown-linux-gnu-freethreaded": "b1c1bd6ab9ef95b464d92a6a911cef1a8d9f0b0f6a192f694ef18ed15d882edf",
+            "ppc64le-unknown-linux-gnu-freethreaded": "ed66ae213a62b286b9b7338b816ccd2815f5248b7a28a185dc8159fe004149ae",
+            "riscv64-unknown-linux-gnu-freethreaded": "913264545215236660e4178bc3e5b57a20a444a8deb5c11680c95afc960b4016",
+            "s390x-unknown-linux-gnu-freethreaded": "7556a38ab5e507c1ec22bc38f9859982bc956cab7f4de05a2faac114feb306db",
+            "x86_64-apple-darwin-freethreaded": "64ab7ac8c88002d9ba20a92f72945bfa350268e944a7922500af75d20330574d",
+            "x86_64-pc-windows-msvc-freethreaded": "9457504547edb2e0156bf76b53c7e4941c7f61c0eff9fd5f4d816d3df51c58e3",
+            "x86_64-unknown-linux-gnu-freethreaded": "864df6e6819e8f8e855ce30f34410fdc5867d0616e904daeb9a40e5806e970d7",
+        },
+        "strip_prefix": {
+            "aarch64-apple-darwin": "python",
+            "aarch64-unknown-linux-gnu": "python",
+            "ppc64le-unknown-linux-gnu": "python",
+            "s390x-unknown-linux-gnu": "python",
+            "riscv64-unknown-linux-gnu": "python",
+            "x86_64-apple-darwin": "python",
+            "x86_64-pc-windows-msvc": "python",
+            "x86_64-unknown-linux-gnu": "python",
+            "x86_64-unknown-linux-musl": "python",
+            "aarch64-apple-darwin-freethreaded": "python/install",
+            "aarch64-unknown-linux-gnu-freethreaded": "python/install",
+            "ppc64le-unknown-linux-gnu-freethreaded": "python/install",
+            "riscv64-unknown-linux-gnu-freethreaded": "python/install",
+            "s390x-unknown-linux-gnu-freethreaded": "python/install",
+            "x86_64-apple-darwin-freethreaded": "python/install",
+            "x86_64-pc-windows-msvc-freethreaded": "python/install",
+            "x86_64-unknown-linux-gnu-freethreaded": "python/install",
+        },
+    },
+    "3.14.0b2": {
+        "url": "20250610/cpython-{python_version}+20250610-{platform}-{build}.{ext}",
+        "sha256": {
+            "aarch64-apple-darwin": "6607351d140e83feb6e11dbde46ab5f99fa9fe039bdbaa12611d26bda0ed9343",
+            "aarch64-unknown-linux-gnu": "cc388d567f7c23921e0bef8dcae959dfab9ee24d10aeeb23688b21eac402817f",
+            "ppc64le-unknown-linux-gnu": "f9379ecc5dc71f9c58adf03d5524176ec36e1b40c788d29c260df54d09ad351c",
+            "riscv64-unknown-linux-gnu": "e6fbe4f7928ec606edee1506752659bf59216fdb208c744d268082ec79b16f42",
+            "s390x-unknown-linux-gnu": "1cf32c1173adc1cb70952bb47c92177a196f9e83b7a874f09599682e92ba0010",
+            "x86_64-apple-darwin": "a6d8196b174409e0ce67829c4e4ee5005c4be20a2efb41116e0521ad1fa1a717",
+            "x86_64-pc-windows-msvc": "0d88ec80c6c3e3ac462368850c19d3930bf2b1a1a5fe89da60c8534d0fac1a01",
+            "x86_64-unknown-linux-gnu": "93b29eea5214d19f0420ef8e459b007e15ea58349d60811122c78241fe51cb92",
+            "x86_64-unknown-linux-musl": "90e90a58ebff3416eb5a3f93ecb59b6eda945e2b706f5c13b0ba85f6b2bee130",
+            "aarch64-apple-darwin-freethreaded": "af0f34aa0dcd02bd3d960a1572a1ed8a17d55b373a22866f05041aaf16f8607d",
+            "aarch64-unknown-linux-gnu-freethreaded": "e76c7ab98e1c0f86a6996d1ec775ba8497bf46aa8ffa8c7b0f2e761f37305329",
+            "ppc64le-unknown-linux-gnu-freethreaded": "df2ae00827406e247f1aaaec76ffc7963b909c81075fc9940eee1ea9f753dd16",
+            "riscv64-unknown-linux-gnu-freethreaded": "09e347cb5f29e0eafd1eba73105ea9d853184b55fbaf4746cebec217430d6db5",
+            "s390x-unknown-linux-gnu-freethreaded": "f911605eee0eb7845a69acaf8bfb2e1811c76e9a5e3980d97fae93135df4b773",
+            "x86_64-apple-darwin-freethreaded": "dd27d519cf2a04917cb566366d6539477791d1b2f1fb42037d9179f469ff55a9",
+            "x86_64-pc-windows-msvc-freethreaded": "da966a17e434094d8f10b719d93c782d82eaf5207f2843cbaa58c3d91a8f0e32",
+            "x86_64-unknown-linux-gnu-freethreaded": "abd60d3a302e9d9c32ec78581fb3a9903079c56ec7a949ce658a7950423f350a",
+        },
+        "strip_prefix": {
+            "aarch64-apple-darwin": "python",
+            "aarch64-unknown-linux-gnu": "python",
+            "ppc64le-unknown-linux-gnu": "python",
+            "s390x-unknown-linux-gnu": "python",
+            "riscv64-unknown-linux-gnu": "python",
+            "x86_64-apple-darwin": "python",
+            "x86_64-pc-windows-msvc": "python",
+            "x86_64-unknown-linux-gnu": "python",
+            "x86_64-unknown-linux-musl": "python",
+            "aarch64-apple-darwin-freethreaded": "python/install",
+            "aarch64-unknown-linux-gnu-freethreaded": "python/install",
+            "ppc64le-unknown-linux-gnu-freethreaded": "python/install",
+            "riscv64-unknown-linux-gnu-freethreaded": "python/install",
+            "s390x-unknown-linux-gnu-freethreaded": "python/install",
+            "x86_64-apple-darwin-freethreaded": "python/install",
+            "x86_64-pc-windows-msvc-freethreaded": "python/install",
+            "x86_64-unknown-linux-gnu-freethreaded": "python/install",
+        },
+    },
 }
 
 # buildifier: disable=unsorted-dict-items
 MINOR_MAPPING = {
     "3.8": "3.8.20",
-    "3.9": "3.9.21",
-    "3.10": "3.10.16",
-    "3.11": "3.11.11",
-    "3.12": "3.12.9",
-    "3.13": "3.13.2",
+    "3.9": "3.9.23",
+    "3.10": "3.10.18",
+    "3.11": "3.11.13",
+    "3.12": "3.12.11",
+    "3.13": "3.13.4",
+    "3.14": "3.14.0b2",
 }
 
 def _generate_platforms():
diff --git a/tests/python/python_tests.bzl b/tests/python/python_tests.bzl
@@ -304,11 +304,11 @@ def _test_toolchain_ordering(env):
                 toolchain = [
                     _toolchain("3.10"),
                     _toolchain("3.10.15"),
-                    _toolchain("3.10.16"),
-                    _toolchain("3.10.11"),
+                    _toolchain("3.10.18"),
+                    _toolchain("3.10.13"),
                     _toolchain("3.11.1"),
                     _toolchain("3.11.10"),
-                    _toolchain("3.11.11", is_default = True),
+                    _toolchain("3.11.13", is_default = True),
                 ],
             ),
             _mod(name = "rules_python", toolchain = [_toolchain("3.11")]),
@@ -320,14 +320,15 @@ def _test_toolchain_ordering(env):
         for t in py.toolchains
     ]
 
-    env.expect.that_str(py.default_python_version).equals("3.11.11")
+    env.expect.that_str(py.default_python_version).equals("3.11.13")
     env.expect.that_dict(py.config.minor_mapping).contains_exactly({
-        "3.10": "3.10.16",
-        "3.11": "3.11.11",
-        "3.12": "3.12.9",
-        "3.13": "3.13.2",
+        "3.10": "3.10.18",
+        "3.11": "3.11.13",
+        "3.12": "3.12.11",
+        "3.13": "3.13.4",
+        "3.14": "3.14.0b2",
         "3.8": "3.8.20",
-        "3.9": "3.9.21",
+        "3.9": "3.9.23",
     })
     env.expect.that_collection(got_versions).contains_exactly([
         # First the full-version toolchains that are in minor_mapping
@@ -336,13 +337,13 @@ def _test_toolchain_ordering(env):
         # The default version is always set in the `python_version` flag, so know, that
         # the default match will be somewhere in the first bunch.
         "3.10",
-        "3.10.16",
+        "3.10.18",
         "3.11",
-        "3.11.11",
+        "3.11.13",
         # Next, the rest, where we will match things based on the `python_version` being
         # the same
         "3.10.15",
-        "3.10.11",
+        "3.10.13",
         "3.11.1",
         "3.11.10",
     ]).in_order()
diff --git a/tests/toolchains/defs.bzl b/tests/toolchains/defs.bzl
@@ -15,6 +15,7 @@
 ""
 
 load("//python:versions.bzl", "PLATFORMS", "TOOL_VERSIONS")
+load("//python/private:version.bzl", "version")  # buildifier: disable=bzl-visibility
 load("//tests/support:py_reconfig.bzl", "py_reconfig_test")
 
 def define_toolchain_tests(name):
@@ -38,13 +39,20 @@ def define_toolchain_tests(name):
             is_platform = "_is_{}".format(platform_key)
             target_compatible_with[is_platform] = []
 
+        parsed = version.parse(python_version, strict = True)
+        expect_python_version = "{0}.{1}.{2}".format(*parsed.release)
+        if parsed.pre:
+            expect_python_version = "{0}{1}{2}".format(
+                expect_python_version,
+                *parsed.pre
+            )
         py_reconfig_test(
             name = "python_{}_test".format(python_version),
             srcs = ["python_toolchain_test.py"],
             main = "python_toolchain_test.py",
             python_version = python_version,
             env = {
-                "EXPECT_PYTHON_VERSION": python_version,
+                "EXPECT_PYTHON_VERSION": expect_python_version,
             },
             deps = ["//python/runfiles"],
             data = ["//tests/support:current_build_settings"],
diff --git a/tests/toolchains/python_toolchain_test.py b/tests/toolchains/python_toolchain_test.py
@@ -27,7 +27,18 @@ def test_expected_toolchain_matches(self):
         )
         self.assertIn(expected, settings["toolchain_label"], msg)
 
-        actual = "{v.major}.{v.minor}.{v.micro}".format(v=sys.version_info)
+        if sys.version_info.releaselevel == "final":
+            actual = "{v.major}.{v.minor}.{v.micro}".format(v=sys.version_info)
+        elif sys.version_info.releaselevel in ["beta"]:
+            actual = (
+                "{v.major}.{v.minor}.{v.micro}{v.releaselevel[0]}{v.serial}".format(
+                    v=sys.version_info
+                )
+            )
+        else:
+            raise NotImplementedError(
+                "Unsupported release level, please update the test"
+            )
         self.assertEqual(actual, expect_version)
 
 
diff --git a/tests/toolchains/transitions/transitions_tests.bzl b/tests/toolchains/transitions/transitions_tests.bzl
@@ -56,14 +56,21 @@ def _impl(ctx):
 
     exec_tools = ctx.toolchains[EXEC_TOOLS_TOOLCHAIN_TYPE].exec_tools
     got_version = exec_tools.exec_interpreter[platform_common.ToolchainInfo].py3_runtime.interpreter_version_info
+    got = "{}.{}.{}".format(
+        got_version.major,
+        got_version.minor,
+        got_version.micro,
+    )
+    if got_version.releaselevel != "final":
+        got = "{}{}{}".format(
+            got,
+            got_version.releaselevel[0],
+            got_version.serial,
+        )
 
     return [
         TestInfo(
-            got = "{}.{}.{}".format(
-                got_version.major,
-                got_version.minor,
-                got_version.micro,
-            ),
+            got = got,
             want = ctx.attr.want_version,
         ),
     ]
