fix(python): derive __version__ from package metadata; align Node version sentinel (#1521)

* fix(python): derive __version__ from package metadata with dev sentinel

The Python SDK hardcoded __version__ = "0.1.0" in copilot/__init__.py and
version = "0.1.0" in pyproject.toml. The publish workflow only rewrites
pyproject.toml at release time, so the public runtime __version__ drifted
and always reported a stale version regardless of what was published.

Derive __version__ from installed package metadata via importlib.metadata,
falling back to a 0.0.0.dev0 sentinel (instead of a real-looking version)
when no metadata is present. Set the committed pyproject.toml version to the
same dev sentinel, matching the .NET and Rust SDKs; CI injects the real
version at publish time.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* chore(nodejs): use 0.0.0-dev version sentinel for consistency

The Node SDK committed a real-looking version (0.1.8) in package.json and
reset to 0.1.0 in the package script, unlike the .NET and Rust SDKs which
use a 0.0.0-dev sentinel. CI injects the real version at publish via
set-version.js, so the committed value should be an unmistakable dev
placeholder rather than a stale real version.

Align package.json, the package script, set-version.js default, and the
package-lock.json files (including nodejs/samples) to 0.0.0-dev.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

---------

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: stephentoub

nodejs/package-lock.json

@@ -4,7 +4,7 @@
         "type": "git",
         "url": "https://github.com/github/copilot-sdk.git"
     },
-    "version": "0.1.8",
+    "version": "0.0.0-dev",
     "description": "TypeScript SDK for programmatic control of GitHub Copilot CLI via JSON-RPC",
     "main": "./dist/cjs/index.js",
     "types": "./dist/index.d.ts",
@@ -44,7 +44,7 @@
         "generate": "cd ../scripts/codegen && npm run generate",
         "update:protocol-version": "tsx scripts/update-protocol-version.ts",
         "prepublishOnly": "npm run build",
-        "package": "npm run clean && npm run build && node scripts/set-version.js && npm pack && npm version 0.1.0 --no-git-tag-version --allow-same-version"
+        "package": "npm run clean && npm run build && node scripts/set-version.js && npm pack && npm version 0.0.0-dev --no-git-tag-version --allow-same-version"
     },
     "keywords": [
         "github",

nodejs/package.json

@@ -3,7 +3,7 @@ import { readFileSync, writeFileSync } from "fs";
 import { dirname, join } from "path";
 import { fileURLToPath } from "url";
 
-const version = process.env.VERSION || "0.1.0-dev";
+const version = process.env.VERSION || "0.0.0-dev";
 const packageJsonPath = join(dirname(fileURLToPath(import.meta.url)), "..", "package.json");
 
 const packageJson = JSON.parse(readFileSync(packageJsonPath, "utf8"));

nodejs/samples/package-lock.json

@@ -4,6 +4,9 @@
 JSON-RPC based SDK for programmatic control of GitHub Copilot CLI
 """
 
+from importlib.metadata import PackageNotFoundError
+from importlib.metadata import version as _pkg_version
+
 from ._mode import (
     BUILTIN_TOOLS_ISOLATED,
     CopilotClientMode,
@@ -145,7 +148,13 @@
     define_tool,
 )
 
-__version__ = "0.1.0"
+try:
+    __version__ = _pkg_version("github-copilot-sdk")
+except PackageNotFoundError:
+    # No installed package metadata (e.g. running from a source checkout that
+    # was never installed). Use a sentinel that can never masquerade as a real
+    # release rather than a hardcoded version that would silently go stale.
+    __version__ = "0.0.0.dev0"
 
 __all__ = [
     "AutoModeSwitchHandler",

nodejs/scripts/set-version.js

@@ -4,7 +4,10 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "github-copilot-sdk"
-version = "0.1.0"
+# Placeholder; the real version is injected at publish time (see
+# .github/workflows/publish.yml). Kept as a dev sentinel so source/editable
+# installs never report a stale real version, matching the .NET and Rust SDKs.
+version = "0.0.0.dev0"
 description = "Python SDK for GitHub Copilot CLI"
 readme = "README.md"
 requires-python = ">=3.11"