sentry-python-sdk

by sentry

Full Sentry SDK setup for Python. Use when asked to "add Sentry to Python", "install sentry-sdk", "setup Sentry in Python", or configure error monitoring,… npx skills add https://github.com/getsentry/agent-skills --skill sentry-python-sdk Download ZIPGitHub19

Sentry Python SDK

Opinionated wizard that scans your Python project and guides you through complete Sentry setup.

Invoke This Skill When

• User asks to "add Sentry to Python" or "setup Sentry" in a Python app

• User wants error monitoring, tracing, profiling, logging, metrics, or crons in Python

• User mentions sentry-sdk, sentry_sdk, or Sentry + any Python framework

• User wants to monitor Django views, Flask routes, FastAPI endpoints, Celery tasks, or scheduled jobs

Note: SDK versions and APIs below reflect Sentry docs at time of writing (sentry-sdk 2.x). Always verify against docs.sentry.io/platforms/python/ before implementing.

Phase 1: Detect

Run these commands to understand the project before making recommendations:

# Check existing Sentry
grep -i sentry requirements.txt pyproject.toml setup.cfg setup.py 2>/dev/null

# Detect web framework
grep -rE "django|flask|fastapi|starlette|aiohttp|tornado|quart|falcon|sanic|bottle" \
 requirements.txt pyproject.toml 2>/dev/null

# Detect task queues
grep -rE "celery|rq|huey|arq|dramatiq" requirements.txt pyproject.toml 2>/dev/null

# Detect logging libraries
grep -E "loguru" requirements.txt pyproject.toml 2>/dev/null

# Detect AI libraries
grep -rE "openai|anthropic|langchain|huggingface|google-genai|pydantic-ai|litellm" \
 requirements.txt pyproject.toml 2>/dev/null

# Detect schedulers / crons
grep -rE "celery|apscheduler|schedule|crontab" requirements.txt pyproject.toml 2>/dev/null

# Check for companion frontend
ls frontend/ web/ client/ ui/ static/ templates/ 2>/dev/null

What to note:

• Is sentry-sdk already in requirements? If yes, check if sentry_sdk.init() is present — may just need feature config.

• Which framework? (Determines where to place sentry_sdk.init().)

• Which task queue? (Celery needs dual-process init; RQ needs a settings file.)

• AI libraries? (OpenAI, Anthropic, LangChain are auto-instrumented.)

• Companion frontend? (Triggers Phase 4 cross-link.)

Phase 2: Recommend

Based on what you found, present a concrete proposal. Don't ask open-ended questions — lead with a recommendation:

Always recommended (core coverage):

• ✅ Error Monitoring — captures unhandled exceptions, supports ExceptionGroup (Python 3.11+)

• ✅ Logging — Python logging stdlib auto-captured; enhanced if Loguru detected

Recommend when detected:

• ✅ Tracing — HTTP framework detected (Django/Flask/FastAPI/etc.)

• ✅ AI Monitoring — OpenAI/Anthropic/LangChain/etc. detected (auto-instrumented, zero config)

• ⚡ Profiling — production apps where performance matters

• ⚡ Crons — Celery Beat, APScheduler, or cron patterns detected

• ⚡ Metrics — business KPIs, SLO tracking

Recommendation matrix:

Feature Recommend when... Reference Error Monitoring Always — non-negotiable baseline ${SKILL_ROOT}/references/error-monitoring.md Tracing Django/Flask/FastAPI/AIOHTTP/etc. detected ${SKILL_ROOT}/references/tracing.md Profiling Production + performance-sensitive workload ${SKILL_ROOT}/references/profiling.md Logging Always (stdlib); enhanced for Loguru ${SKILL_ROOT}/references/logging.md Metrics Business events or SLO tracking needed ${SKILL_ROOT}/references/metrics.md Crons Celery Beat, APScheduler, or cron patterns ${SKILL_ROOT}/references/crons.md AI Monitoring OpenAI/Anthropic/LangChain/etc. detected ${SKILL_ROOT}/references/ai-monitoring.md

Propose: "I recommend Error Monitoring + Tracing [+ Logging if applicable]. Want Profiling, Crons, or AI Monitoring too?"

Phase 3: Guide

Install

# Core SDK (always required)
pip install sentry-sdk

# Optional extras (install only what matches detected framework):
pip install "sentry-sdk[django]"
pip install "sentry-sdk[flask]"
pip install "sentry-sdk[fastapi]"
pip install "sentry-sdk[celery]"
pip install "sentry-sdk[aiohttp]"
pip install "sentry-sdk[tornado]"

# Multiple extras:
pip install "sentry-sdk[django,celery]"

Extras are optional — plain sentry-sdk works for all frameworks. Extras install complementary packages.

Quick Start — Recommended Init

Full init enabling the most features with sensible defaults. Place before any app/framework code:

import sentry_sdk

sentry_sdk.init(
 dsn=os.environ["SENTRY_DSN"],
 environment=os.environ.get("SENTRY_ENVIRONMENT", "production"),
 release=os.environ.get("SENTRY_RELEASE"), # e.g. "[email protected]"
 send_default_pii=True,

 # Tracing (lower to 0.1–0.2 in high-traffic production)
 traces_sample_rate=1.0,

 # Profiling — continuous, tied to active spans
 profile_session_sample_rate=1.0,
 profile_lifecycle="trace",

 # Structured logs (SDK ≥ 2.35.0)
 enable_logs=True,
)

Where to Initialize Per Framework

Framework Where to call sentry_sdk.init() Notes Django Top of settings.py, before any imports No middleware needed — Sentry patches Django internally Flask Before app = Flask(__name__) Must precede app creation FastAPI Before app = FastAPI() StarletteIntegration + FastApiIntegration auto-enabled together Starlette Before app = Starlette(...) Same auto-integration as FastAPI AIOHTTP Module level, before web.Application() Tornado Module level, before app setup No integration class needed Quart Before app = Quart(__name__) Falcon Module level, before app = falcon.App() Sanic Inside @app.listener("before_server_start") Sanic's lifecycle requires async init Celery @signals.celeryd_init.connect in worker AND in calling process Dual-process init required RQ mysettings.py loaded by worker via rq worker -c mysettings ARQ Both worker module and enqueuing process

Django example (settings.py):

import sentry_sdk

sentry_sdk.init(
 dsn=os.environ["SENTRY_DSN"],
 send_default_pii=True,
 traces_sample_rate=1.0,
 profile_session_sample_rate=1.0,
 profile_lifecycle="trace",
 enable_logs=True,
)

# rest of Django settings...
INSTALLED_APPS = [...]

FastAPI example (main.py):

import sentry_sdk

sentry_sdk.init(
 dsn=os.environ["SENTRY_DSN"],
 send_default_pii=True,
 traces_sample_rate=1.0,
 profile_session_sample_rate=1.0,
 profile_lifecycle="trace",
 enable_logs=True,
)

from fastapi import FastAPI
app = FastAPI()

Auto-Enabled vs Explicit Integrations

Most integrations activate automatically when their package is installed — no integrations=[...] needed:

Auto-enabled Explicit required Django, Flask, FastAPI, Starlette, AIOHTTP, Tornado, Quart, Falcon, Sanic, Bottle DramatiqIntegration Celery, RQ, Huey, ARQ GRPCIntegration SQLAlchemy, Redis, asyncpg, pymongo StrawberryIntegration Requests, HTTPX, aiohttp-client AsyncioIntegration OpenAI, Anthropic, LangChain, Pydantic AI, MCP OpenTelemetryIntegration Python logging, Loguru WSGIIntegration / ASGIIntegration

For Each Agreed Feature

Walk through features one at a time. Load the reference, follow its steps, verify before moving on:

Feature Reference file Load when... Error Monitoring ${SKILL_ROOT}/references/error-monitoring.md Always (baseline) Tracing ${SKILL_ROOT}/references/tracing.md HTTP handlers / distributed tracing Profiling ${SKILL_ROOT}/references/profiling.md Performance-sensitive production Logging ${SKILL_ROOT}/references/logging.md Always; enhanced for Loguru Metrics ${SKILL_ROOT}/references/metrics.md Business KPIs / SLO tracking Crons ${SKILL_ROOT}/references/crons.md Scheduler / cron patterns detected AI Monitoring ${SKILL_ROOT}/references/ai-monitoring.md AI library detected

For each feature: Read ${SKILL_ROOT}/references/<feature>.md, follow steps exactly, verify it works.

Verification

Test that Sentry is receiving events:

# Trigger a real error event — check dashboard within seconds
division_by_zero = 1 / 0

Or for a non-crashing check:

sentry_sdk.capture_message("Sentry Python SDK test")

If nothing appears:

• Set debug=True in sentry_sdk.init() — prints SDK internals to stdout

• Verify the DSN is correct

• Check SENTRY_DSN env var is set in the running process

• For Celery/RQ: ensure init runs in the worker process, not just the calling process

Phase 4: Cross-Link

After completing Python setup, check for a companion frontend missing Sentry:

ls frontend/ web/ client/ ui/ 2>/dev/null
cat frontend/package.json web/package.json client/package.json 2>/dev/null \
 | grep -E '"react"|"svelte"|"vue"|"next"|"nuxt"'

If a frontend exists without Sentry, suggest the matching skill:

Frontend detected Suggest skill React / Next.js sentry-react-sdk Svelte / SvelteKit sentry-svelte-sdk Vue / Nuxt Use @sentry/vue — see docs.sentry.io/platforms/javascript/guides/vue/ Other JS/TS sentry-react-sdk (covers generic browser JS patterns)