{"library":"starlette-testclient","title":"Starlette TestClient","type":"library","description":"starlette-testclient is a backport of Starlette's TestClient that utilizes the `requests` library instead of `httpx`. Its primary goal is to offer a familiar synchronous testing interface for ASGI applications, easing the migration for users accustomed to `requests`-based testing. The current version is 0.4.1. Releases are infrequent, with the latest significant update in April 2024, reflecting a maintenance cadence focused on compatibility rather than rapid feature development, as its purpose is to bridge the gap for users transitioning from older Starlette testing practices.","language":"python","status":"maintenance","last_verified":"Fri May 22","install":{"commands":["pip install starlette-testclient"],"cli":null},"imports":["from starlette_testclient import TestClient"],"auth":{"required":false,"env_vars":[]},"links":{"homepage":null,"github":"https://github.com/sponsors/Kludex","docs":null,"changelog":null,"pypi":"https://pypi.org/project/starlette-testclient/","npm":null,"openapi_spec":null,"status_page":null,"smithery":null},"quickstart":{"code":"from starlette.applications import Starlette\nfrom starlette.responses import PlainTextResponse\nfrom starlette.routing import Route\nfrom starlette_testclient import TestClient\n\nasync def homepage(request):\n    return PlainTextResponse(\"Hello, world!\")\n\nroutes = [\n    Route(\"/\", endpoint=homepage),\n]\n\napp = Starlette(routes=routes)\n\ndef test_homepage_sync():\n    client = TestClient(app)\n    response = client.get(\"/\")\n    assert response.status_code == 200\n    assert response.text == \"Hello, world!\"\n\ntest_homepage_sync()\nprint(\"Quickstart test passed!\")","lang":"python","description":"This example demonstrates how to create a basic Starlette application and then test it using `starlette-testclient`'s synchronous `TestClient`.","tag":null,"tag_description":null,"last_tested":null,"results":[]},"compatibility":{"tag":null,"tag_description":null,"last_tested":"2026-05-22","installed_version":"0.4.1","pypi_latest":"0.4.1","is_stale":false,"summary":{"python_range":"3.10–3.9","success_rate":100,"avg_install_s":2.4,"avg_import_s":0.78,"wheel_type":"wheel"},"results":[{"runtime":"python:3.10-alpine","python_version":"3.10","os_libc":"alpine (musl)","variant":"starlette-testclient","exit_code":0,"wheel_type":"wheel","failure_reason":null,"import_side_effects":"clean","install_time_s":null,"import_time_s":0.69,"mem_mb":13.3,"disk_size":"23.4M"},{"runtime":"python:3.10-slim","python_version":"3.10","os_libc":"slim (glibc)","variant":"starlette-testclient","exit_code":0,"wheel_type":"wheel","failure_reason":null,"import_side_effects":"clean","install_time_s":2.4,"import_time_s":0.51,"mem_mb":13.3,"disk_size":"24M"},{"runtime":"python:3.11-alpine","python_version":"3.11","os_libc":"alpine (musl)","variant":"starlette-testclient","exit_code":0,"wheel_type":"wheel","failure_reason":null,"import_side_effects":"clean","install_time_s":null,"import_time_s":0.93,"mem_mb":15,"disk_size":"25.8M"},{"runtime":"python:3.11-slim","python_version":"3.11","os_libc":"slim (glibc)","variant":"starlette-testclient","exit_code":0,"wheel_type":"wheel","failure_reason":null,"import_side_effects":"clean","install_time_s":2.4,"import_time_s":0.82,"mem_mb":15,"disk_size":"26M"},{"runtime":"python:3.12-alpine","python_version":"3.12","os_libc":"alpine (musl)","variant":"starlette-testclient","exit_code":0,"wheel_type":"wheel","failure_reason":null,"import_side_effects":"clean","install_time_s":null,"import_time_s":1.04,"mem_mb":14.9,"disk_size":"17.4M"},{"runtime":"python:3.12-slim","python_version":"3.12","os_libc":"slim (glibc)","variant":"starlette-testclient","exit_code":0,"wheel_type":"wheel","failure_reason":null,"import_side_effects":"clean","install_time_s":2.2,"import_time_s":1.04,"mem_mb":14.9,"disk_size":"18M"},{"runtime":"python:3.13-alpine","python_version":"3.13","os_libc":"alpine (musl)","variant":"starlette-testclient","exit_code":0,"wheel_type":"wheel","failure_reason":null,"import_side_effects":"clean","install_time_s":null,"import_time_s":0.78,"mem_mb":13.6,"disk_size":"16.8M"},{"runtime":"python:3.13-slim","python_version":"3.13","os_libc":"slim (glibc)","variant":"starlette-testclient","exit_code":0,"wheel_type":"wheel","failure_reason":null,"import_side_effects":"clean","install_time_s":2.1,"import_time_s":0.76,"mem_mb":13.6,"disk_size":"17M"},{"runtime":"python:3.9-alpine","python_version":"3.9","os_libc":"alpine (musl)","variant":"starlette-testclient","exit_code":0,"wheel_type":"wheel","failure_reason":null,"import_side_effects":"clean","install_time_s":null,"import_time_s":0.64,"mem_mb":13.1,"disk_size":"22.6M"},{"runtime":"python:3.9-slim","python_version":"3.9","os_libc":"slim (glibc)","variant":"starlette-testclient","exit_code":0,"wheel_type":"wheel","failure_reason":null,"import_side_effects":"clean","install_time_s":2.9,"import_time_s":0.59,"mem_mb":13.1,"disk_size":"23M"}]}}