thread through the version releaselevel and serial

Author: aignas

python/private/hermetic_runtime_repo_setup.bzl

@@ -204,6 +204,12 @@ 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": {
+                "a": "alpha",
+                "b": "beta",
+                "c": "candidate",
+            }.get(version_info.pre[0]) if version_info.pre else "final",
+            "serial": str(version_info.pre[1]) if version_info.pre else "0",
         },
         coverage_tool = select({
             # Convert empty string to None

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,
         ),
     ]