{"library":"molotov","title":"Molotov","description":"Molotov is a simple, Python 3.7+ tool for writing load tests. It is built upon `asyncio` and `aiohttp.client`, enabling highly concurrent testing scenarios. The current version is 2.6, released in October 2022. While there isn't a fixed release cadence, updates address Python compatibility, dependency changes, and new features.","language":"python","status":"active","last_verified":"Sun May 17","install":{"commands":["pip install molotov"],"cli":{"name":"molotov","version":"2.6"}},"imports":["from molotov import scenario","from molotov import setup","from molotov import global_setup","from molotov import get_context"],"auth":{"required":false,"env_vars":[]},"quickstart":{"code":"import os\nfrom molotov import scenario\n\n_API = os.environ.get('MOLOTOV_TARGET_API', 'http://localhost:8080')\n\n@scenario(weight=40)\nasync def scenario_one(session):\n    async with session.get(_API) as resp:\n        res = await resp.json()\n        assert res[\"result\"] == \"OK\"\n        assert resp.status == 200\n\n@scenario(weight=60)\nasync def scenario_two(session):\n    async with session.get(_API) as resp:\n        assert resp.status == 200\n","lang":"python","description":"This quickstart defines two asynchronous scenarios that make GET requests to a target API. Each scenario receives an `aiohttp.ClientSession` object. The `weight` parameter controls the probability of a scenario being picked. To run, save this as `loadtest.py` and execute from the terminal.","tag":null,"tag_description":null,"last_tested":null,"results":[]},"compatibility":{"tag":null,"tag_description":null,"last_tested":"2026-05-17","installed_version":"2.6","pypi_latest":"2.6","is_stale":false,"summary":{"python_range":"3.10–3.9","success_rate":100,"avg_install_s":5.6,"avg_import_s":0.43,"wheel_type":"sdist"},"results":[{"runtime":"python:3.10-alpine","python_version":"3.10","os_libc":"alpine (musl)","variant":"molotov","exit_code":0,"wheel_type":"sdist","failure_reason":null,"import_side_effects":"clean","install_time_s":null,"import_time_s":0.38,"mem_mb":11.2,"disk_size":"35.9M"},{"runtime":"python:3.10-slim","python_version":"3.10","os_libc":"slim (glibc)","variant":"molotov","exit_code":0,"wheel_type":"sdist","failure_reason":null,"import_side_effects":"clean","install_time_s":5.8,"import_time_s":0.27,"mem_mb":11.2,"disk_size":"38M"},{"runtime":"python:3.11-alpine","python_version":"3.11","os_libc":"alpine (musl)","variant":"molotov","exit_code":0,"wheel_type":"sdist","failure_reason":null,"import_side_effects":"clean","install_time_s":null,"import_time_s":0.54,"mem_mb":12.5,"disk_size":"40.6M"},{"runtime":"python:3.11-slim","python_version":"3.11","os_libc":"slim (glibc)","variant":"molotov","exit_code":0,"wheel_type":"sdist","failure_reason":null,"import_side_effects":"clean","install_time_s":5,"import_time_s":0.5,"mem_mb":12.5,"disk_size":"43M"},{"runtime":"python:3.12-alpine","python_version":"3.12","os_libc":"alpine (musl)","variant":"molotov","exit_code":0,"wheel_type":"sdist","failure_reason":null,"import_side_effects":"clean","install_time_s":null,"import_time_s":0.47,"mem_mb":12.2,"disk_size":"30.2M"},{"runtime":"python:3.12-slim","python_version":"3.12","os_libc":"slim (glibc)","variant":"molotov","exit_code":0,"wheel_type":"sdist","failure_reason":null,"import_side_effects":"clean","install_time_s":5.3,"import_time_s":0.49,"mem_mb":12.2,"disk_size":"32M"},{"runtime":"python:3.13-alpine","python_version":"3.13","os_libc":"alpine (musl)","variant":"molotov","exit_code":0,"wheel_type":"sdist","failure_reason":null,"import_side_effects":"clean","install_time_s":null,"import_time_s":0.46,"mem_mb":12.4,"disk_size":"29.6M"},{"runtime":"python:3.13-slim","python_version":"3.13","os_libc":"slim (glibc)","variant":"molotov","exit_code":0,"wheel_type":"sdist","failure_reason":null,"import_side_effects":"clean","install_time_s":5.2,"import_time_s":0.44,"mem_mb":12.4,"disk_size":"32M"},{"runtime":"python:3.9-alpine","python_version":"3.9","os_libc":"alpine (musl)","variant":"molotov","exit_code":0,"wheel_type":"sdist","failure_reason":null,"import_side_effects":"clean","install_time_s":null,"import_time_s":0.36,"mem_mb":11,"disk_size":"36.1M"},{"runtime":"python:3.9-slim","python_version":"3.9","os_libc":"slim (glibc)","variant":"molotov","exit_code":0,"wheel_type":"sdist","failure_reason":null,"import_side_effects":"clean","install_time_s":6.6,"import_time_s":0.37,"mem_mb":11,"disk_size":"39M"}]}}