Fix nested nextLink support for paging operations when models-mode is not msrest

.chronus/changes/auto-microsoft-copilot-fix-8453-2025-8-15-14-14-16.md

@@ -0,0 +1,8 @@
+---
+changeKind: feature
+packages:
+  - "@autorest/python"
+  - "@azure-tools/typespec-python"
+---
+
+Support nested nextLink for paging operation

packages/autorest.python/package.json

@@ -29,7 +29,7 @@
   },
   "homepage": "https://github.com/Azure/autorest.python/blob/main/README.md",
   "dependencies": {
-    "@typespec/http-client-python": "~0.17.0",
+    "@typespec/http-client-python": "https://artprodcus3.artifacts.visualstudio.com/A0fb41ef4-5012-48a9-bf39-4ee3de03ee35/29ec6040-b234-4e31-b139-33dc4287b756/_apis/artifact/cGlwZWxpbmVhcnRpZmFjdDovL2F6dXJlLXNkay9wcm9qZWN0SWQvMjllYzYwNDAtYjIzNC00ZTMxLWIxMzktMzNkYzQyODdiNzU2L2J1aWxkSWQvNTMzNzIyOC9hcnRpZmFjdE5hbWUvYnVpbGRfYXJ0aWZhY3RzX3B5dGhvbg2/content?format=file&subPath=%2Fpackages%2Ftypespec-http-client-python-0.17.0.tgz",
     "@autorest/system-requirements": "~1.0.2",
     "fs-extra": "~11.2.0",
     "tsx": "~4.19.1"
@@ -47,4 +47,4 @@
     "requirements.txt",
     "generator/"
   ]
-}
+}

packages/typespec-python/package.json

@@ -67,7 +67,7 @@
     "js-yaml": "~4.1.0",
     "semver": "~7.6.2",
     "tsx": "~4.19.1",
-    "@typespec/http-client-python": "~0.17.0",
+    "@typespec/http-client-python": "https://artprodcus3.artifacts.visualstudio.com/A0fb41ef4-5012-48a9-bf39-4ee3de03ee35/29ec6040-b234-4e31-b139-33dc4287b756/_apis/artifact/cGlwZWxpbmVhcnRpZmFjdDovL2F6dXJlLXNkay9wcm9qZWN0SWQvMjllYzYwNDAtYjIzNC00ZTMxLWIxMzktMzNkYzQyODdiNzU2L2J1aWxkSWQvNTMzNzIyOC9hcnRpZmFjdE5hbWUvYnVpbGRfYXJ0aWZhY3RzX3B5dGhvbg2/content?format=file&subPath=%2Fpackages%2Ftypespec-http-client-python-0.17.0.tgz",
     "fs-extra": "~11.2.0"
   },
   "devDependencies": {
@@ -103,4 +103,4 @@
     "chalk": "5.3.0",
     "@types/fs-extra": "11.0.4"
   }
-}
+}

packages/typespec-python/test/azure/generated/payload-pageable/payload/pageable/serverdrivenpagination/aio/operations/_operations.py

@@ -249,7 +249,7 @@ async def extract_data(pipeline_response):
             list_of_elem = _deserialize(list[_models3.Pet], deserialized.get("nestedItems", {}).get("pets", []))
             if cls:
                 list_of_elem = cls(list_of_elem)  # type: ignore
-            return deserialized.get("nestedNext.next") or None, AsyncList(list_of_elem)
+            return deserialized.get("nestedNext", {}).get("next") or None, AsyncList(list_of_elem)
 
         async def get_next(next_link=None):
             _request = prepare_request(next_link)

packages/typespec-python/test/azure/generated/payload-pageable/payload/pageable/serverdrivenpagination/operations/_operations.py

@@ -290,7 +290,7 @@ def extract_data(pipeline_response):
             list_of_elem = _deserialize(list[_models2.Pet], deserialized.get("nestedItems", {}).get("pets", []))
             if cls:
                 list_of_elem = cls(list_of_elem)  # type: ignore
-            return deserialized.get("nestedNext.next") or None, iter(list_of_elem)
+            return deserialized.get("nestedNext", {}).get("next") or None, iter(list_of_elem)
 
         def get_next(next_link=None):
             _request = prepare_request(next_link)

packages/typespec-python/test/generic_mock_api_tests/asynctests/test_payload_pageable_async.py

@@ -31,6 +31,12 @@ async def test_link(client: PageableClient):
     assert_result(result)
 
 
+@pytest.mark.asyncio
+async def test_link_string(client: PageableClient):
+    result = [p async for p in client.server_driven_pagination.link_string()]
+    assert_result(result)
+
+
 @pytest.mark.asyncio
 async def test_request_query_response_body(client: PageableClient):
     result = [
@@ -73,3 +79,37 @@ async def test_request_header_response_header(client: PageableClient):
         )
     ]
     assert_result(result)
+
+
+@pytest.mark.asyncio
+async def test_nested_link(client: PageableClient):
+    result = [p async for p in client.server_driven_pagination.nested_link()]
+    assert_result(result)
+
+
+@pytest.mark.asyncio
+async def test_request_query_nested_response_body(client: PageableClient):
+    result = [
+        p
+        async for p in client.server_driven_pagination.continuation_token.request_query_nested_response_body(
+            foo="foo", bar="bar"
+        )
+    ]
+    assert_result(result)
+
+
+@pytest.mark.asyncio
+async def test_request_header_nested_response_body(client: PageableClient):
+    result = [
+        p
+        async for p in client.server_driven_pagination.continuation_token.request_header_nested_response_body(
+            foo="foo", bar="bar"
+        )
+    ]
+    assert_result(result)
+
+
+@pytest.mark.asyncio
+async def test_list_without_continuation(client: PageableClient):
+    result = [p async for p in client.list_without_continuation()]
+    assert_result(result)

packages/typespec-python/test/generic_mock_api_tests/test_payload_pageable.py

@@ -30,6 +30,11 @@ def test_link(client: PageableClient):
     assert_result(result)
 
 
+def test_link_string(client: PageableClient):
+    result = list(client.server_driven_pagination.link_string())
+    assert_result(result)
+
+
 def test_request_query_response_body(client: PageableClient):
     result = list(client.server_driven_pagination.continuation_token.request_query_response_body(foo="foo", bar="bar"))
     assert_result(result)
@@ -52,3 +57,27 @@ def test_request_header_response_header(client: PageableClient):
         client.server_driven_pagination.continuation_token.request_header_response_header(foo="foo", bar="bar")
     )
     assert_result(result)
+
+
+def test_nested_link(client: PageableClient):
+    result = list(client.server_driven_pagination.nested_link())
+    assert_result(result)
+
+
+def test_request_query_nested_response_body(client: PageableClient):
+    result = list(
+        client.server_driven_pagination.continuation_token.request_query_nested_response_body(foo="foo", bar="bar")
+    )
+    assert_result(result)
+
+
+def test_request_header_nested_response_body(client: PageableClient):
+    result = list(
+        client.server_driven_pagination.continuation_token.request_header_nested_response_body(foo="foo", bar="bar")
+    )
+    assert_result(result)
+
+
+def test_list_without_continuation(client: PageableClient):
+    result = list(client.list_without_continuation())
+    assert_result(result)

packages/typespec-python/test/unbranded/generated/payload-pageable/payload/pageable/serverdrivenpagination/aio/operations/_operations.py

@@ -235,7 +235,7 @@ async def extract_data(pipeline_response):
             list_of_elem = _deserialize(list[_models3.Pet], deserialized.get("nestedItems", {}).get("pets", []))
             if cls:
                 list_of_elem = cls(list_of_elem)  # type: ignore
-            return deserialized.get("nestedNext.next") or None, AsyncList(list_of_elem)
+            return deserialized.get("nestedNext", {}).get("next") or None, AsyncList(list_of_elem)
 
         async def get_next(next_link=None):
             _request = prepare_request(next_link)

packages/typespec-python/test/unbranded/generated/payload-pageable/payload/pageable/serverdrivenpagination/operations/_operations.py

@@ -276,7 +276,7 @@ def extract_data(pipeline_response):
             list_of_elem = _deserialize(list[_models2.Pet], deserialized.get("nestedItems", {}).get("pets", []))
             if cls:
                 list_of_elem = cls(list_of_elem)  # type: ignore
-            return deserialized.get("nestedNext.next") or None, iter(list_of_elem)
+            return deserialized.get("nestedNext", {}).get("next") or None, iter(list_of_elem)
 
         def get_next(next_link=None):
             _request = prepare_request(next_link)