Add aiobotocore support for async AWS SDK recording/playback #964
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This adds support for recording and playing back HTTP requests made via aiobotocore, the async version of boto3/botocore. aiobotocore uses aiohttp internally but wraps responses in its own AioAWSResponse class. Changes: - Add vcr/stubs/aiobotocore_stubs.py with mock response classes and request/response handling for aiobotocore's AIOHTTPSession.send method - Update vcr/patch.py to patch aiobotocore.httpsession.AIOHTTPSession.send - Add integration tests for aiobotocore in tests/integration/test_aiobotocore.py The implementation follows the same pattern as the existing aiohttp stubs, adapting the mock responses to work with botocore's expected response format (url, status_code, headers dict, raw response with read() method). Note: aiobotocore has a circular import issue when importing httpsession directly, so we import aiobotocore.session first to avoid this. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <[email protected]>
🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <[email protected]>
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Summary
This PR adds support for recording and playing back HTTP requests made via aiobotocore, the async version of boto3/botocore.
aiobotocore uses aiohttp internally but wraps responses in its own
AioAWSResponseclass. This implementation patchesaiobotocore.httpsession.AIOHTTPSession.sendto intercept requests and either:CannotOverwriteExistingCassetteExceptionwhen write-protectedChanges
vcr/stubs/aiobotocore_stubs.py- Mock response classes (MockAioHTTPResponse,MockAioAWSResponse) and request/response handlingvcr/patch.py- Added aiobotocore patching toCassettePatcherBuildertests/integration/test_aiobotocore.py- Integration tests for aiobotocore supportImplementation Notes
The mock response classes implement the interfaces expected by botocore's response parsing:
raw_headersproperty returning[(bytes, bytes), ...]async read()method for body contentstatus_code,headers, andurlattributesaiobotocore has a circular import issue when importing
aiobotocore.httpsessiondirectly, so we importaiobotocore.sessionfirst to resolve the dependency graphTest Plan
Related Issues
This enables testing of async AWS services using aiobotocore without making real network calls, similar to how vcrpy already supports boto3 (sync) and aiohttp.