create-cloudflare: add types/autocomplete for Python projects (#8197)

* create-cloudflare: add types/autocomplete for Python projects

* update the <TBD> to project name in new python files

---------

Co-authored-by: Peter Bacon Darwin <[email protected]>

Author: dom96

.changeset/salty-bugs-begin.md

@@ -0,0 +1,5 @@
+---
+"create-cloudflare": minor
+---
+
+Python Workers template now includes package for autocomplete and type hints

packages/create-cloudflare/templates/hello-world/c3.ts

@@ -1,9 +1,25 @@
+import { readFile, writeFile } from "node:fs/promises";
+import { resolve } from "node:path";
+import type { TemplateConfig } from "../../src/templates";
+
 export default {
 	configVersion: 1,
 	id: "hello-world",
 	displayName: "Hello World Worker",
 	description: "Get started with a basic Worker in the language of your choice",
 	platform: "workers",
+	async configure(ctx) {
+		if (ctx.args.lang === "python") {
+			for (const file of ["pyproject.toml", "uv.lock"]) {
+				const contents = await readFile(
+					resolve(ctx.project.path, file),
+					"utf8",
+				);
+				const updated = contents.replaceAll(/<TBD>/g, ctx.project.name);
+				await writeFile(resolve(ctx.project.path, file), updated);
+			}
+		}
+	},
 	copyFiles: {
 		variants: {
 			js: {
@@ -17,4 +33,4 @@ export default {
 			},
 		},
 	},
-};
+} satisfies TemplateConfig;

packages/create-cloudflare/templates/hello-world/py/.python-version

@@ -0,0 +1 @@
+3.12

packages/create-cloudflare/templates/hello-world/py/README.md

@@ -0,0 +1,18 @@
+## Usage
+
+You can run the worker defined by your new project by executing `wrangler dev` in this
+directory. This will start up an HTTP server and will allow you to iterate on your
+worker without having to restart `wrangler`.
+
+### Types and autocomplete
+
+This project also includes a pyproject.toml and uv.lock file with some requirements which
+set up autocomplete and type hints for this Python Workers project. To get these installed
+you can run the following:
+
+```
+uv venv
+uv sync
+```
+
+Then point your editor's Python plugin at the `.venv` directory.

packages/create-cloudflare/templates/hello-world/py/pyproject.toml

@@ -0,0 +1,9 @@
+[project]
+name = "<TBD>"
+version = "0.1.0"
+description = "Add your description here"
+readme = "README.md"
+requires-python = ">=3.12"
+dependencies = [
+    "webtypy>=0.1.7",
+]