[Marve10s]

The Python app entry template was one 1,667-line main.py.hbs that held every web framework. Its FastAPI branch alone ran from line 39 to line 1128. This PR splits it into one file per framework under python-base/src/app/main/, the same layout as the Rust split in #471.

File	Lines	Conditionals
fastapi.py.hbs	1,110	54
django.py.hbs	185	26
flask.py.hbs	123	18
litestar.py.hbs	122	16
starlette.py.hbs	89	10
aiohttp.py.hbs	70	9
none.py.hbs	30	4
streamlit.py.hbs	27	3

None of the new files checks pythonWebFramework. To add a framework, you add one file.

The Python handler picks main/<framework>.py.hbs (falling back to none.py.hbs), writes it to src/app/main.py and skips the other files.

How the files were made

A script fixed pythonWebFramework to each value and removed every branch that value decides. Conditions that mixed the framework with another field keep only the other field's part. For example, (and (eq pythonWebFramework "litestar") (or ...auth...)) becomes the auth check in litestar.py.hbs and disappears from the other files. No code was edited by hand.

Verification

• main.py renders the same, byte for byte, from the old template and the new files across 3,136 configurations. That covers all 8 frameworks, each with every value of every Python field set one at a time, plus 300 random combinations. A one-character change to flask.py.hbs made all 392 Flask configurations fail, so the check does catch differences.
• Each framework generates exactly one src/app/main.py and no main/ directory.
• Template generator: lint and typecheck pass, and all 287 tests pass.
• CLI suite: 4,811 pass, 4 skip, 0 fail.

The Go main.go.hbs stays as it is. Split the same way, gin and echo would differ by only 72 of about 570 lines, and go-zero, kratos and httprouter would be identical files. That much duplicated code would be harder to maintain than the conditionals.

Summary by CodeRabbit

• New Features
  • Python project templates now generate an entry point for the selected framework, including aiohttp, Django, Flask, Litestar, Starlette, and Streamlit, with a default option when no framework is selected.
  • Framework templates can include starter root and health endpoints, with optional authentication, GraphQL, metrics, logging, tracing, and error monitoring integrations.

Confidence Score: 4/5

The split appears to preserve behavior, but the unused-import rule must be satisfied before merging.

Findings

1.  Sentry imports go unused ▶

_{Reviews (2) · Last reviewed commit: "Merge branch 'main' into refactor/split-..." · Reviewed by Greptile}

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Review	Status	Commit	Review trigger
📝 Code Review	✅ Completed 2026-10-14T11:52:07.855377Z	2b075e9	New commits

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Reviewing files that changed from the base of the PR and between 1995b9c and af71814.

📒 Files selected for processing: 9

• packages/template-generator/src/template-handlers/ecosystems/python-base.ts
• packages/template-generator/templates/python-base/src/app/main/aiohttp.py.hbs
• packages/template-generator/templates/python-base/src/app/main/django.py.hbs
• packages/template-generator/templates/python-base/src/app/main/fastapi.py.hbs
• packages/template-generator/templates/python-base/src/app/main/flask.py.hbs
• packages/template-generator/templates/python-base/src/app/main/litestar.py.hbs
• packages/template-generator/templates/python-base/src/app/main/none.py.hbs
• packages/template-generator/templates/python-base/src/app/main/starlette.py.hbs
• packages/template-generator/templates/python-base/src/app/main/streamlit.py.hbs

💤 Files with no reviewable changes: 1

• packages/template-generator/templates/python-base/src/app/main/fastapi.py.hbs

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📝 Walkthrough

The Python template handler now selects an app-entry template based on the configured web framework. New templates define starter applications for Python frameworks and Streamlit. The FastAPI template no longer contains the Django branch.

Changes: Python application entry templates

Layer / File(s)	Summary
Entry-template selection packages/template-generator/src/template-handlers/ecosystems/python-base.ts	The handler selects the configured entry template, falls back to none when unset or unavailable, and writes the selected entry to src/app/main.py. It skips other app-entry templates and transforms other output paths.
Script and UI starter templates packages/template-generator/templates/python-base/src/app/main/none.py.hbs, packages/template-generator/templates/python-base/src/app/main/streamlit.py.hbs	The none template adds a script entry point with optional logging and observability imports. The Streamlit template loads environment variables and displays starter content.
ASGI framework entry points packages/template-generator/templates/python-base/src/app/main/aiohttp.py.hbs, packages/template-generator/templates/python-base/src/app/main/litestar.py.hbs, packages/template-generator/templates/python-base/src/app/main/starlette.py.hbs	The templates define framework-specific application setup, root and health routes, conditional metrics and integrations, and startup behavior.
Flask entry point packages/template-generator/templates/python-base/src/app/main/flask.py.hbs	The template configures Flask, CORS, logging, and optional integrations. It adds root, health, metrics, and authentication routes, with environment-based startup.
Django entry point and FastAPI cleanup packages/template-generator/templates/python-base/src/app/main/django.py.hbs, packages/template-generator/templates/python-base/src/app/main/fastapi.py.hbs	The Django template adds routes and conditional API, authentication, GraphQL, metrics, and server integrations. The FastAPI template removes the Django branch and adjusts shared imports.

Priority: ➖ Normal

Estimated code review effort: 3 (Moderate) | ~25 minutes

Change: Refactor

Merge Risk: ⚪ Minimal · up to af718

This change reorganizes Python app-entry templates by web framework without intended output changes. The reported equivalence checks and tests pass, and no concrete merge-blocking risk was identified.

Pre-merge checks: 4 · 1

Failed checks: 1 warning

Check name	Status	Explanation	Resolution
Docstring Coverage		Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 1 functions across 1 files. (7 skipped: 7 …	Write docstrings for the functions missing them to satisfy the coverage threshold.

Passed checks: 4 passed

Check name	Status	Explanation
Description Check		Check skipped - CodeRabbit’s high-level summary is enabled.
Title check		The title clearly and concisely describes the main change: splitting the Python app entry template into framework-specific files.
Linked Issues check		Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check		Check skipped because no linked issues were found for this pull request.

Full details: Docstring Coverage

Explanation

Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 1 functions across 1 files. (7 skipped: 7 unsupported.)

✨ Finishing Touches: 💡 1

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[greptile-apps]

Sentry imports go unused

The new Flask template imports init_sentry when Sentry is selected, but never uses it. The repository requires: “Emit helpers, imports, and variables only when the selected branch uses them.” Django and Litestar have the same unused import, and the pattern appears in the other non-FastAPI templates too.

Remove the unused imports or wire them into the intended startup code. This repository requirement must be satisfied before merging.

Context Used: AGENTS.md (source)

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