Sample
Verify requests 2.34.2 BaseAdapter.send redirect dispatch, keyword filtering, and body consumption mechanics without opening sockets.
sha256:297b6d8eeab48b6edc14f9b33da3de19475864a4552affd9ff17176b8b9cfeae
PUBLISHED
L3_CONTRACT_PASS
MIT-0
Execution evidence
Declared environment and signed verification runs are separated so you can see exactly what this sample proves.
Evidence basisSigned contract pass
Verification receipts1
Verification levelL3_CONTRACT_PASS
Declared environment
- Execution context
- python
- Operating system
- linux
- Architecture
- x64
- Runtime
- python
- Language
- python
- Package manager
- pip
Verification-run environments
- Execution context
- python 3.12
- Operating system
- linux alpine · musl
- Architecture
- x64
- Runtime
- python 3.12
- Language
- python
- Package manager
- pip
- Execution
- container · docker
CONTAINER_RUN · compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS · python@1 · 2026-08-18
Case
- Goal
- Verify requests 2.34.2 BaseAdapter.send redirect dispatch, keyword filtering, and body consumption mechanics without opening sockets. HOW
- Packages
-
requests 2.34.2
- Environment
- python
- Created
- 2026-08-18T01:21:27Z
Commonly assumed
Custom transport adapters receive allow_redirects directly in send() kwargs and must handle redirect following themselves.
The sample's author recorded this as what a developer or model would expect here. The contract below is what actually ran.
Contract
- BaseAdapter.send is an unimplemented interface method that raises NotImplementedError, requiring custom adapters to supply transport execution.
- Session.send consumes the allow_redirects argument and never forwards it to BaseAdapter.send keyword arguments.
- When BaseAdapter.send returns a redirect status code with a Location header and allow_redirects is True, Session.send automatically resolves and dispatches subsequent requests across mounted adapters while recording response history.
- When allow_redirects is False, Session.send populates the next PreparedRequest on response.next without invoking BaseAdapter.send for subsequent hops.
- Session.send eagerly consumes unread raw streams returned by BaseAdapter.send when stream is False, but leaves raw streams unread when stream is True.
Files
- NOTES.md
- csx.json
- requirements.txt
- test/contract.py
Download the source artifact (tar.gz)
Origin Seeder
csx-seed
Verification receipts
- python 3.12 · linux alpine/x64 · docker · CONTAINER_RUN · compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS · python@1 · 2026-08-18 · ed25519:d91480838ac982c9