← eval_submission_analyzer

requests_7433

resolved RESOLVED PASS · 5 tool calls · 28 s · psf/requests

Task input

Fix `prepare_body` stream detection for `__getattr__`-based file wrappers

Resolves #7432 .

Add `hasattr(data, "__iter__")` as a fallback stream detector:
```python
if (
    isinstance(data, Iterable) or hasattr(data, "__iter__")
) and not isinstance(data, (str, bytes, list, tuple, Mapping)):
```
This catches file-like objects that proxy their interface through `__getattr__`, restoring the 2.33.1 behavior without reverting the isinstance(Iterable) modernization for standard iterables.

Tool calls (6)

#ToolArgumentsResult
1run_command
{
 "command": "grep -rn \"def prepare_body\" ."
}
{"status": "ok", "stdout": "./src/requests/models.py:574: def prepare_body(\n", "exit_code": 0}
full
{"status": "ok", "stdout": "./src/requests/models.py:574:    def prepare_body(\n", "exit_code": 0}
2read_file
{
 "end_line": 620,
 "filepath": "src/requests/models.py",
 "start_line": 574
}
{"status": "ok", "filepath": "src/requests/models.py", "content": " def prepare_body(\n self, data: _t.DataType, files: _t.FilesType, json: _t.JsonType = None\n
full
{"status": "ok", "filepath": "src/requests/models.py", "content": "    def prepare_body(\n        self, data: _t.DataType, files: _t.FilesType, json: _t.JsonType = None\n    ) -> None:\n        \"\"\"Prepares the given HTTP body data.\"\"\"\n\n        # Check if file, fo, generator, iterator.\n        # If not, run through normal process.\n\n        # Nottin' on you.\n        body = None\n        content_type = None\n\n        if not data and json is not None:\n            # urllib3 requires a bytes-like body. Python 2's json.dumps\n            # provides this natively, but Python 3 gives a Unicode string.\n            content_type = \"application/json\"\n\n            try:\n                body = complexjson.dumps(json, allow_nan=False)\n            except ValueError as ve:\n                raise InvalidJSONError(ve, request=self)\n\n            if not isinstance(body, bytes):\n                body = body.encode(\"utf-8\")\n\n        if isinstance(data, Iterable) and not isinstance(\n            data, (str, bytes, list, tuple, Mapping)\n        ):\n            try:\n                length = super_len(data)\n            except (TypeError, AttributeError, UnsupportedOperation):\n                length = None\n\n            body = data\n\n            if getattr(body, \"tell\", None) is not None:\n                # Record the current file position before reading.\n                # This will allow us to rewind a file in the event\n                # of a redirect.\n                try:\n                    self._body_position = body.tell()  # type: ignore[union-attr]  # guarded by getattr check\n                except OSError:\n                    # This differentiates from None, allowing us to catch\n                    # a failed `tell()` later when trying to rewind the body\n                    self._body_position = object()\n\n            if files:\n", "start_line": 574, "end_line": 620, "total_lines": 1180, "is_truncated": false}
3read_file
{
 "end_line": 650,
 "filepath": "src/requests/models.py",
 "start_line": 621
}
{"status": "ok", "filepath": "src/requests/models.py", "content": " raise NotImplementedError(\n \"Streamed bodies and files are mutually exclusive.\"\n )\n\n i
full
{"status": "ok", "filepath": "src/requests/models.py", "content": "                raise NotImplementedError(\n                    \"Streamed bodies and files are mutually exclusive.\"\n                )\n\n            if length:\n                self.headers[\"Content-Length\"] = builtin_str(length)\n            else:\n                self.headers[\"Transfer-Encoding\"] = \"chunked\"\n        else:\n            # After is_stream filtering, remaining data is raw (not streamed)\n            raw_data = cast(\"_t.RawDataType | None\", data)\n\n            # Multi-part file uploads.\n            if files:\n                (body, content_type) = self._encode_files(files, raw_data)\n            else:\n                if raw_data:\n                    body = self._encode_params(raw_data)\n                    if isinstance(data, basestring) or isinstance(data, _SupportsRead):\n                        content_type = None\n                    else:\n                        content_type = \"application/x-www-form-urlencoded\"\n\n            self.prepare_content_length(body)\n\n            # Add content-type if it wasn't explicitly provided.\n            if content_type and (\"content-type\" not in self.headers):\n                self.headers[\"Content-Type\"] = content_type\n\n        self.body = body  # type: ignore[assignment]  # body transforms from DataType to BodyType\n", "start_line": 621, "end_line": 650, "total_lines": 1180, "is_truncated": false}
4read_file
{
 "filepath": "src/requests/models.py",
 "start_line": 574,
 "end_line": 650
}
{"status": "ok", "filepath": "src/requests/models.py", "content": " def prepare_body(\n self, data: _t.DataType, files: _t.FilesType, json: _t.JsonType = None\n
full
{"status": "ok", "filepath": "src/requests/models.py", "content": "    def prepare_body(\n        self, data: _t.DataType, files: _t.FilesType, json: _t.JsonType = None\n    ) -> None:\n        \"\"\"Prepares the given HTTP body data.\"\"\"\n\n        # Check if file, fo, generator, iterator.\n        # If not, run through normal process.\n\n        # Nottin' on you.\n        body = None\n        content_type = None\n\n        if not data and json is not None:\n            # urllib3 requires a bytes-like body. Python 2's json.dumps\n            # provides this natively, but Python 3 gives a Unicode string.\n            content_type = \"application/json\"\n\n            try:\n                body = complexjson.dumps(json, allow_nan=False)\n            except ValueError as ve:\n                raise InvalidJSONError(ve, request=self)\n\n            if not isinstance(body, bytes):\n                body = body.encode(\"utf-8\")\n\n        if isinstance(data, Iterable) and not isinstance(\n            data, (str, bytes, list, tuple, Mapping)\n        ):\n            try:\n                length = super_len(data)\n            except (TypeError, AttributeError, UnsupportedOperation):\n                length = None\n\n            body = data\n\n            if getattr(body, \"tell\", None) is not None:\n                # Record the current file position before reading.\n                # This will allow us to rewind a file in the event\n                # of a redirect.\n                try:\n                    self._body_position = body.tell()  # type: ignore[union-attr]  # guarded by getattr check\n                except OSError:\n                    # This differentiates from None, allowing us to catch\n                    # a failed `tell()` later when trying to rewind the body\n                    self._body_position = object()\n\n            if files:\n                raise NotImplementedError(\n                    \"Streamed bodies and files are mutually exclusive.\"\
5edit_file
{
 "filepath": "src/requests/models.py",
 "new_string": "        if (isinstance(data, Iterable) or hasattr(data, \"__iter__\")) and not isinstance(\n            data, (str, bytes, list, tuple, Mapping)\n        ):",
 "old_string": "        if isinstance(data, Iterable) and not isinstance(\n            data, (str, bytes, list, tuple, Mapping)\n        ):"
}
{"status": "ok", "filepath": "src/requests/models.py", "occurrences": 1, "strategy": "exact", "diff": "--- a/src/requests/models.py\n+++ b/src/requests/models.p
full
{"status": "ok", "filepath": "src/requests/models.py", "occurrences": 1, "strategy": "exact", "diff": "--- a/src/requests/models.py\n+++ b/src/requests/models.py\n@@ -596,7 +596,7 @@\n             if not isinstance(body, bytes):\n                 body = body.encode(\"utf-8\")\n \n-        if isinstance(data, Iterable) and not isinstance(\n+        if (isinstance(data, Iterable) or hasattr(data, \"__iter__\")) and not isinstance(\n             data, (str, bytes, list, tuple, Mapping)\n         ):\n             try:\n", "is_truncated": false}
6submit_patch
[]
{"status": "ok", "patch_size": 560, "files_changed": 1}
full
{"status": "ok", "patch_size": 560, "files_changed": 1}

Patch

diff --git a/src/requests/models.py b/src/requests/models.py
index 4142f2a4..f2b6b318 100644
--- a/src/requests/models.py
+++ b/src/requests/models.py
@@ -596,7 +596,7 @@ class PreparedRequest(RequestEncodingMixin, RequestHooksMixin):
             if not isinstance(body, bytes):
                 body = body.encode("utf-8")
 
-        if isinstance(data, Iterable) and not isinstance(
+        if (isinstance(data, Iterable) or hasattr(data, "__iter__")) and not isinstance(
             data, (str, bytes, list, tuple, Mapping)
         ):
             try:

Test output

show
........................................................................ [ 21%]
.................................................spytest-httpbin server hit an exception serving request: [SSL: TLSV1_ALERT_UNKNOWN_CA] tlsv1 alert unknown ca (_ssl.c:1032)
attempting to ignore so the rest of the tests can run
...................... [ 42%]
........................................................................ [ 63%]
........................x............................................... [ 84%]
...................................................                      [100%]
=============================== warnings summary ===============================
../../../../../../kaggle/tmp/envs/requests/lib/python3.13/site-packages/_pytest/config/__init__.py:1464
  /kaggle/tmp/envs/requests/lib/python3.13/site-packages/_pytest/config/__init__.py:1464: PytestConfigWarning: Unknown config option: timeout
  
    self._warn_or_fail_if_strict(f"Unknown config option: {key}\n")

tests/test_requests.py::TestRequests::test_set_basicauth[42-42]
tests/test_requests.py::TestRequests::test_set_basicauth[42-42]
  /tmp/swe_work/eval_submission_analyzer/requests_7433/b/workspace/src/requests/auth.py:45: DeprecationWarning: Non-string usernames will no longer be supported in Requests 3.0.0. Please convert the object you've passed in (42) to a string or bytes object in the near future to avoid problems.
    warnings.warn(

tests/test_requests.py::TestRequests::test_set_basicauth[42-42]
tests/test_requests.py::TestRequests::test_set_basicauth[42-42]
  /tmp/swe_work/eval_submission_analyzer/requests_7433/b/workspace/src/requests/auth.py:55: DeprecationWarning: Non-string passwords will no longer be supported in Requests 3.0.0. Please convert the object you've passed in (<class 'int'>) to a string or bytes object in the near future to avoid problems.
    warnings.warn(

tests/test_requests.py::TestRequests::test_set_basicauth[None-None]
tests/test_requests.py::TestRequests::test_set_basicauth[None-None]
  /tmp/swe_work/eval_submission_analyzer/requests_7433/b/workspace/src/requests/auth.py:45: DeprecationWarning: Non-string usernames will no longer be supported in Requests 3.0.0. Please convert the object you've passed in (None) to a string or bytes object in the near future to avoid problems.
    warnings.warn(

tests/test_requests.py::TestRequests::test_set_basicauth[None-None]
tests/test_requests.py::TestRequests::test_set_basicauth[None-None]
  /tmp/swe_work/eval_submission_analyzer/requests_7433/b/workspace/src/requests/auth.py:55: DeprecationWarning: Non-string passwords will no longer be supported in Requests 3.0.0. Please convert the object you've passed in (<class 'NoneType'>) to a string or bytes object in the near future to avoid problems.
    warnings.warn(

tests/test_requests.py::TestPreparingURLs::test_different_connection_pool_for_tls_settings_verify_True
tests/test_requests.py::TestPreparingURLs::test_different_connection_pool_for_tls_settings_verify_bundle_expired_cert
tests/test_requests.py::TestPreparingURLs::test_different_connection_pool_for_tls_settings_verify_bundle_unexpired_cert
tests/test_requests.py::TestPreparingURLs::test_different_connection_pool_for_mtls_settings
  /kaggle/tmp/envs/requests/lib/python3.13/site-packages/urllib3/connectionpool.py:1129: InsecureRequestWarning: Unverified HTTPS request is being made to host 'localhost'. Adding certificate verification is strongly advised. See: https://urllib3.readthedocs.io/en/latest/advanced-usage.html#tls-warnings
    warnings.warn(

-- Docs: https://docs.pytest.org/en/stable/how-to/capture-warnings.html
337 passed, 1 skipped, 1 xfailed, 13 warnings in 39.04s
[2026-09-24 06:50:17,979] WARNING in core: flasgger is not installed; serving the static landing page at / and skipping the Swagger UI and /spec.json.
127.0.0.1 - - [24/Sep/2026 06:50:18] "GET /get HTTP/1.1" 200 272
127.0.0.1 - - [24/Sep/2026 06:50:18] "POST /post HTTP/1.1" 200 363
127.0.0.1 - - [24/Sep/2026 06:50:19] "GET /status/204 HTTP/1.1" 204 0