From 16c9d6d5c9566964bc3d9107acd4df39385e28ed Mon Sep 17 00:00:00 2001
From: Ranjan G <76397067+ranjan-del@users.noreply.github.com>
Date: Sat, 5 Sep 2026 15:33:02 +0530
Subject: [PATCH] test: drop the __file__-relative sys.path.insert calls from
 the unit tests

Follows #37802, which removed the cwd-relative form and left the __file__-relative
and variable-based call sites for later. Under tests/test_litellm those 42 sites
all add the repo root, or the test's own directory, to sys.path. pytest already
puts the repo root on sys.path for this tree (tests/ is a package, so the rootdir
basedir is inserted) and litellm itself is installed in the environment, so none
of them changes what is importable.

41 call sites removed together with the os, sys and Path imports that nothing
else used. The one in test_check_licenses.py is kept and marked test-quality-ok:
it imports check_licenses out of tests/code_coverage_tests, which is not a
package, the same way test_check_py310_typing_imports.py already does.

TQ003 across tests/ goes from 62 to 20 and the budget is ratcheted to match.
---
 test-quality-budget.json                           |  2 +-
 .../test_request_timeout_resolver.py               |  5 -----
 .../test_handler_output_config_passthrough.py      |  7 -------
 .../adapters/test_handler_prompt_cache_key.py      |  4 ----
 .../test_responses_adapters_handler.py             |  4 ----
 .../test_responses_adapters_streaming_iterator.py  |  4 ----
 .../llms/anthropic/test_anthropic_common_utils.py  |  4 ----
 .../llms/anthropic/test_count_tokens_oauth.py      |  6 ------
 .../llms/anthropic/test_message_sanitization.py    |  7 -------
 .../chat/test_azure_chat_gpt_transformation.py     |  6 ------
 .../llms/azure/test_azure_embedding.py             |  6 ------
 .../videos/test_azure_video_transformation.py      | 14 +-------------
 .../claude/test_azure_anthropic_handler.py         |  8 --------
 ...test_azure_anthropic_messages_transformation.py |  6 ------
 .../test_azure_anthropic_provider_routing.py       |  7 -------
 .../claude/test_azure_anthropic_transformation.py  |  8 +-------
 .../claude/test_main_azure_anthropic_timeout.py    |  6 ------
 .../llms/custom_httpx/test_gemini_session_leak.py  |  4 ----
 .../llms/databricks/test_databricks_e2e.py         |  5 -----
 .../test_lm_studio_chat_transformation.py          |  6 ------
 .../llms/ollama/test_ollama_chat_transformation.py |  8 --------
 .../responses/test_openai_like_responses.py        |  8 --------
 .../llms/openai_like/test_abliteration_provider.py |  6 ------
 .../llms/openai_like/test_assemblyai_provider.py   |  6 ------
 .../llms/openai_like/test_charity_engine.py        |  6 ------
 .../llms/openai_like/test_empiriolabs_provider.py  |  6 ------
 .../llms/openai_like/test_json_providers.py        |  4 +---
 .../llms/openai_like/test_xiaomi_mimo.py           |  6 ------
 .../test_vertex_ai_psc_endpoint_support.py         |  6 ------
 .../proxy/auth/test_banned_params_extra_body.py    |  6 ------
 tests/test_litellm/proxy/proxy_server/conftest.py  |  3 ---
 .../proxy/test_component_allowlists.py             |  5 -----
 .../proxy/test_model_level_guardrails.py           |  6 ------
 .../test_db_overlay_remote_module_scrub.py         |  6 ------
 .../test_get_instance_fn_runtime_gate.py           |  6 ------
 .../proxy/utils/prisma_and_spend/conftest.py       |  6 +-----
 .../proxy/utils/proxy_logging/conftest.py          |  5 -----
 .../test_litellm/test_chat_ui_responses_session.py |  5 -----
 tests/test_litellm/test_check_licenses.py          |  2 +-
 .../test_completion_timeout_resolution.py          |  5 -----
 tests/test_litellm/test_nested_drop_params.py      |  5 -----
 tests/test_litellm/test_ssl_verify_unit.py         |  5 -----
 tests/test_litellm/test_vcr_safe_body_matcher.py   |  6 ------
 43 files changed, 6 insertions(+), 240 deletions(-)

diff --git a/test-quality-budget.json b/test-quality-budget.json
index 3c12371f02f..4802dbefd13 100644
--- a/test-quality-budget.json
+++ b/test-quality-budget.json
@@ -6,7 +6,7 @@
     "limit": 737
   },
   "TQ003": {
-    "limit": 62
+    "limit": 20
   },
   "TQ004": {
     "limit": 469
diff --git a/tests/test_litellm/litellm_core_utils/test_request_timeout_resolver.py b/tests/test_litellm/litellm_core_utils/test_request_timeout_resolver.py
index 4e016622f1c..e5c379f264a 100644
--- a/tests/test_litellm/litellm_core_utils/test_request_timeout_resolver.py
+++ b/tests/test_litellm/litellm_core_utils/test_request_timeout_resolver.py
@@ -6,13 +6,8 @@ at the package default. This is what lets request_timeout act as an independent
 per-attempt timeout instead of being indistinguishable from "nobody set it".
 """
 
-import os
-import sys
-
 import pytest
 
-sys.path.insert(0, os.path.abspath(os.path.join(os.path.dirname(__file__), "../../..")))
-
 import litellm
 from litellm.constants import DEFAULT_REQUEST_TIMEOUT_SECONDS
 from litellm.litellm_core_utils.request_timeout_resolver import (
diff --git a/tests/test_litellm/llms/anthropic/experimental_pass_through/adapters/test_handler_output_config_passthrough.py b/tests/test_litellm/llms/anthropic/experimental_pass_through/adapters/test_handler_output_config_passthrough.py
index a944afc6152..02d0549a0aa 100644
--- a/tests/test_litellm/llms/anthropic/experimental_pass_through/adapters/test_handler_output_config_passthrough.py
+++ b/tests/test_litellm/llms/anthropic/experimental_pass_through/adapters/test_handler_output_config_passthrough.py
@@ -25,18 +25,11 @@ Tests cover (consolidating PRs #23706 and #22727):
    the fallback inference path from being exercised).
 """
 
-import os
-import sys
-from unittest.mock import MagicMock, patch
 
-import pytest
 
 # Anchor sys.path to this file's location — not the working-directory-relative
 # pattern Greptile flagged on PR #23706. Resolves correctly regardless of
 # where pytest is invoked from.
-sys.path.insert(
-    0, os.path.abspath(os.path.join(os.path.dirname(__file__), "../../../../../.."))
-)
 
 from litellm.llms.anthropic.experimental_pass_through.adapters.handler import (
     ANTHROPIC_ONLY_REQUEST_KEYS,
diff --git a/tests/test_litellm/llms/anthropic/experimental_pass_through/adapters/test_handler_prompt_cache_key.py b/tests/test_litellm/llms/anthropic/experimental_pass_through/adapters/test_handler_prompt_cache_key.py
index 7dc7507120f..4933effb490 100644
--- a/tests/test_litellm/llms/anthropic/experimental_pass_through/adapters/test_handler_prompt_cache_key.py
+++ b/tests/test_litellm/llms/anthropic/experimental_pass_through/adapters/test_handler_prompt_cache_key.py
@@ -1,11 +1,7 @@
 import json
-import os
-import sys
 
 import pytest
 
-sys.path.insert(0, os.path.abspath(os.path.join(os.path.dirname(__file__), "../../../../../..")))
-
 from litellm.llms.anthropic.experimental_pass_through.adapters.handler import (
     LiteLLMMessagesToCompletionTransformationHandler,
 )
diff --git a/tests/test_litellm/llms/anthropic/experimental_pass_through/responses_adapters/test_responses_adapters_handler.py b/tests/test_litellm/llms/anthropic/experimental_pass_through/responses_adapters/test_responses_adapters_handler.py
index b66075f691b..782e0873a55 100644
--- a/tests/test_litellm/llms/anthropic/experimental_pass_through/responses_adapters/test_responses_adapters_handler.py
+++ b/tests/test_litellm/llms/anthropic/experimental_pass_through/responses_adapters/test_responses_adapters_handler.py
@@ -1,14 +1,10 @@
 import datetime
 import json
-import os
-import sys
 from unittest.mock import AsyncMock, patch
 
 import pytest
 import respx
 
-sys.path.insert(0, os.path.abspath(os.path.join(os.path.dirname(__file__), "../../../../../..")))
-
 import litellm
 from litellm.llms.anthropic.experimental_pass_through.responses_adapters.handler import (
     LiteLLMMessagesToResponsesAPIHandler,
diff --git a/tests/test_litellm/llms/anthropic/experimental_pass_through/responses_adapters/test_responses_adapters_streaming_iterator.py b/tests/test_litellm/llms/anthropic/experimental_pass_through/responses_adapters/test_responses_adapters_streaming_iterator.py
index bfe2d6b7cea..f1efb477090 100644
--- a/tests/test_litellm/llms/anthropic/experimental_pass_through/responses_adapters/test_responses_adapters_streaming_iterator.py
+++ b/tests/test_litellm/llms/anthropic/experimental_pass_through/responses_adapters/test_responses_adapters_streaming_iterator.py
@@ -4,12 +4,8 @@ Tests for AnthropicResponsesStreamWrapper
 """
 
 import asyncio
-import os
-import sys
 from types import SimpleNamespace
 
-sys.path.insert(0, os.path.abspath(os.path.join(os.path.dirname(__file__), "../../../../../..")))
-
 from litellm.litellm_core_utils.prompt_templates.common_utils import (
     encrypted_reasoning_signature,
 )
diff --git a/tests/test_litellm/llms/anthropic/test_anthropic_common_utils.py b/tests/test_litellm/llms/anthropic/test_anthropic_common_utils.py
index e1b39c4ba13..46cc708c483 100644
--- a/tests/test_litellm/llms/anthropic/test_anthropic_common_utils.py
+++ b/tests/test_litellm/llms/anthropic/test_anthropic_common_utils.py
@@ -11,15 +11,11 @@ Verifies that:
 """
 
 import json
-import os
-import sys
 from types import SimpleNamespace
 from unittest.mock import patch
 
 import pytest
 
-sys.path.insert(0, os.path.abspath(os.path.join(os.path.dirname(__file__), "../../../../..")))
-
 # Fake tokens for testing (not real secrets)
 FAKE_OAUTH_TOKEN = "sk-ant-oat01-fake-token-for-testing-123456789abcdef"
 FAKE_REGULAR_KEY = "sk-ant-api03-regular-key-for-testing-123456789"
diff --git a/tests/test_litellm/llms/anthropic/test_count_tokens_oauth.py b/tests/test_litellm/llms/anthropic/test_count_tokens_oauth.py
index bcfc56577eb..3180bae7f6a 100644
--- a/tests/test_litellm/llms/anthropic/test_count_tokens_oauth.py
+++ b/tests/test_litellm/llms/anthropic/test_count_tokens_oauth.py
@@ -7,12 +7,6 @@ Verifies that get_required_headers() correctly handles OAuth tokens
 Regression test for https://github.com/BerriAI/litellm/issues/22040
 """
 
-import os
-import sys
-
-sys.path.insert(
-    0, os.path.abspath(os.path.join(os.path.dirname(__file__), "../../../../.."))
-)
 
 from litellm.llms.anthropic.count_tokens.transformation import (
     AnthropicCountTokensConfig,
diff --git a/tests/test_litellm/llms/anthropic/test_message_sanitization.py b/tests/test_litellm/llms/anthropic/test_message_sanitization.py
index 79ed321d0ee..73fadcd709b 100644
--- a/tests/test_litellm/llms/anthropic/test_message_sanitization.py
+++ b/tests/test_litellm/llms/anthropic/test_message_sanitization.py
@@ -8,13 +8,6 @@ C. Empty text content
 """
 
 import pytest
-import sys
-import os
-
-# Add the parent directory to the path so we can import litellm
-sys.path.insert(
-    0, os.path.abspath(os.path.join(os.path.dirname(__file__), "../../../.."))
-)
 
 import litellm
 from litellm.litellm_core_utils.prompt_templates.factory import (
diff --git a/tests/test_litellm/llms/azure/chat/test_azure_chat_gpt_transformation.py b/tests/test_litellm/llms/azure/chat/test_azure_chat_gpt_transformation.py
index bc6cb0c0fed..d9fb6a3da88 100644
--- a/tests/test_litellm/llms/azure/chat/test_azure_chat_gpt_transformation.py
+++ b/tests/test_litellm/llms/azure/chat/test_azure_chat_gpt_transformation.py
@@ -1,14 +1,8 @@
-import os
-import sys
 from typing import Final
 
 import pytest
 from pydantic import TypeAdapter
 
-sys.path.insert(
-    0, os.path.abspath(os.path.join(os.path.dirname(__file__), "../../../../.."))
-)
-
 import litellm
 from litellm.litellm_core_utils.prompt_templates.common_utils import TOOL_RESULT_IMAGE_BOUNDARY
 from litellm.llms.azure.chat.gpt_5_transformation import AzureOpenAIGPT5Config
diff --git a/tests/test_litellm/llms/azure/test_azure_embedding.py b/tests/test_litellm/llms/azure/test_azure_embedding.py
index 22ee503ef0d..233c6f6612a 100644
--- a/tests/test_litellm/llms/azure/test_azure_embedding.py
+++ b/tests/test_litellm/llms/azure/test_azure_embedding.py
@@ -1,13 +1,7 @@
-import os
-import sys
 from unittest.mock import MagicMock, patch
 
 import pytest
 
-sys.path.insert(
-    0, os.path.abspath(os.path.join(os.path.dirname(__file__), "../../../../.."))
-)
-
 from litellm.llms.azure.azure import AzureChatCompletion
 from litellm.types.utils import EmbeddingResponse, Usage
 
diff --git a/tests/test_litellm/llms/azure/videos/test_azure_video_transformation.py b/tests/test_litellm/llms/azure/videos/test_azure_video_transformation.py
index 97c9e590d08..f0074a1729e 100644
--- a/tests/test_litellm/llms/azure/videos/test_azure_video_transformation.py
+++ b/tests/test_litellm/llms/azure/videos/test_azure_video_transformation.py
@@ -1,21 +1,9 @@
-import json
-import os
-import sys
-from typing import Any, Dict, Optional
-from unittest.mock import MagicMock, patch, Mock, mock_open
+from unittest.mock import MagicMock, patch, mock_open
 import pytest
-import httpx
 
-# Add the parent directory to the system path
-sys.path.insert(
-    0, os.path.abspath(os.path.join(os.path.dirname(__file__), "../../../../../.."))
-)
-
-import litellm
 from litellm.llms.azure.videos.transformation import AzureVideoConfig
 from litellm.types.videos.main import (
     VideoObject,
-    VideoResponse,
     VideoCreateOptionalRequestParams,
 )
 from litellm.types.router import GenericLiteLLMParams
diff --git a/tests/test_litellm/llms/azure_ai/claude/test_azure_anthropic_handler.py b/tests/test_litellm/llms/azure_ai/claude/test_azure_anthropic_handler.py
index dcb6aec8091..062ceae5349 100644
--- a/tests/test_litellm/llms/azure_ai/claude/test_azure_anthropic_handler.py
+++ b/tests/test_litellm/llms/azure_ai/claude/test_azure_anthropic_handler.py
@@ -1,15 +1,7 @@
-import os
-import sys
-
-sys.path.insert(
-    0, os.path.abspath(os.path.join(os.path.dirname(__file__), "../../../../.."))
-)
 
 import json
 from unittest.mock import MagicMock, patch
 
-import pytest
-
 from litellm.llms.azure_ai.anthropic.handler import AzureAnthropicChatCompletion
 from litellm.types.utils import ModelResponse
 
diff --git a/tests/test_litellm/llms/azure_ai/claude/test_azure_anthropic_messages_transformation.py b/tests/test_litellm/llms/azure_ai/claude/test_azure_anthropic_messages_transformation.py
index 326edde743d..094c252223d 100644
--- a/tests/test_litellm/llms/azure_ai/claude/test_azure_anthropic_messages_transformation.py
+++ b/tests/test_litellm/llms/azure_ai/claude/test_azure_anthropic_messages_transformation.py
@@ -1,12 +1,6 @@
 import copy
 import json
 import os
-import sys
-
-sys.path.insert(
-    0, os.path.abspath(os.path.join(os.path.dirname(__file__), "../../../../.."))
-)
-
 from unittest.mock import patch
 
 import pytest
diff --git a/tests/test_litellm/llms/azure_ai/claude/test_azure_anthropic_provider_routing.py b/tests/test_litellm/llms/azure_ai/claude/test_azure_anthropic_provider_routing.py
index db1daa013c2..d1aba9c5db5 100644
--- a/tests/test_litellm/llms/azure_ai/claude/test_azure_anthropic_provider_routing.py
+++ b/tests/test_litellm/llms/azure_ai/claude/test_azure_anthropic_provider_routing.py
@@ -1,11 +1,4 @@
-import os
-import sys
 
-sys.path.insert(
-    0, os.path.abspath(os.path.join(os.path.dirname(__file__), "../../../../.."))
-)
-
-import pytest
 
 from litellm.litellm_core_utils.get_llm_provider_logic import (
     _is_azure_claude_model,
diff --git a/tests/test_litellm/llms/azure_ai/claude/test_azure_anthropic_transformation.py b/tests/test_litellm/llms/azure_ai/claude/test_azure_anthropic_transformation.py
index 9e2bfb08852..0f9611f34b0 100644
--- a/tests/test_litellm/llms/azure_ai/claude/test_azure_anthropic_transformation.py
+++ b/tests/test_litellm/llms/azure_ai/claude/test_azure_anthropic_transformation.py
@@ -1,11 +1,5 @@
-import os
-import sys
 
-sys.path.insert(
-    0, os.path.abspath(os.path.join(os.path.dirname(__file__), "../../../../.."))
-)
-
-from unittest.mock import MagicMock, patch
+from unittest.mock import patch
 
 import pytest
 
diff --git a/tests/test_litellm/llms/azure_ai/claude/test_main_azure_anthropic_timeout.py b/tests/test_litellm/llms/azure_ai/claude/test_main_azure_anthropic_timeout.py
index e08098e9aab..e56be88cc2d 100644
--- a/tests/test_litellm/llms/azure_ai/claude/test_main_azure_anthropic_timeout.py
+++ b/tests/test_litellm/llms/azure_ai/claude/test_main_azure_anthropic_timeout.py
@@ -2,14 +2,8 @@
 Ensure litellm.completion() forwards timeout to Azure Anthropic handler (main.py dispatch).
 """
 
-import os
-import sys
 from unittest.mock import MagicMock, patch
 
-sys.path.insert(
-    0, os.path.abspath(os.path.join(os.path.dirname(__file__), "../../../../.."))
-)
-
 from litellm import completion
 from litellm.types.utils import ModelResponse
 
diff --git a/tests/test_litellm/llms/custom_httpx/test_gemini_session_leak.py b/tests/test_litellm/llms/custom_httpx/test_gemini_session_leak.py
index 9a4c6164db6..6483fcaa389 100755
--- a/tests/test_litellm/llms/custom_httpx/test_gemini_session_leak.py
+++ b/tests/test_litellm/llms/custom_httpx/test_gemini_session_leak.py
@@ -11,13 +11,9 @@ Validates that:
 import asyncio
 import gc
 import sys
-from pathlib import Path
 
 import pytest
 
-# Add litellm to path
-sys.path.insert(0, str(Path(__file__).parent))
-
 
 async def test_aiohttp_handler_cleanup():
     """Test BaseLLMAIOHTTPHandler session cleanup via __del__"""
diff --git a/tests/test_litellm/llms/databricks/test_databricks_e2e.py b/tests/test_litellm/llms/databricks/test_databricks_e2e.py
index 669f9e94639..c7d42dbdf2a 100644
--- a/tests/test_litellm/llms/databricks/test_databricks_e2e.py
+++ b/tests/test_litellm/llms/databricks/test_databricks_e2e.py
@@ -72,11 +72,6 @@ pytestmark = pytest.mark.skip(
     "python tests/test_litellm/llms/databricks/test_databricks_e2e.py"
 )
 
-# Add the litellm package to path
-sys.path.insert(
-    0, os.path.abspath(os.path.join(os.path.dirname(__file__), "../../../.."))
-)
-
 # Config file path - can be overridden with DATABRICKS_TEST_CONFIG env var
 DEFAULT_CONFIG_PATH = os.path.expanduser("~/.databricks_litellm_config.txt")
 CONFIG_FILE = os.environ.get("DATABRICKS_TEST_CONFIG", DEFAULT_CONFIG_PATH)
diff --git a/tests/test_litellm/llms/lm_studio/test_lm_studio_chat_transformation.py b/tests/test_litellm/llms/lm_studio/test_lm_studio_chat_transformation.py
index 9a4af91b736..338f8d1e712 100644
--- a/tests/test_litellm/llms/lm_studio/test_lm_studio_chat_transformation.py
+++ b/tests/test_litellm/llms/lm_studio/test_lm_studio_chat_transformation.py
@@ -1,13 +1,7 @@
-import os
-import sys
 from unittest.mock import patch
 
 from pydantic import BaseModel
 
-sys.path.insert(
-    0, os.path.abspath(os.path.join(os.path.dirname(__file__), "../../../../.."))
-)
-
 from litellm.llms.lm_studio.chat.transformation import LMStudioChatConfig
 from litellm.utils import get_optional_params
 
diff --git a/tests/test_litellm/llms/ollama/test_ollama_chat_transformation.py b/tests/test_litellm/llms/ollama/test_ollama_chat_transformation.py
index 25f9645faa0..c1f1cced626 100644
--- a/tests/test_litellm/llms/ollama/test_ollama_chat_transformation.py
+++ b/tests/test_litellm/llms/ollama/test_ollama_chat_transformation.py
@@ -1,15 +1,7 @@
-import inspect
-import os
-import sys
 from typing import cast
 
-import pytest
 from pydantic import BaseModel
 
-sys.path.insert(
-    0, os.path.abspath(os.path.join(os.path.dirname(__file__), "../../../../.."))
-)
-
 from litellm.llms.ollama.chat.transformation import (
     OllamaChatConfig,
     OllamaChatCompletionResponseIterator,
diff --git a/tests/test_litellm/llms/openai_like/responses/test_openai_like_responses.py b/tests/test_litellm/llms/openai_like/responses/test_openai_like_responses.py
index 1402a8fa7b5..d6628606b00 100644
--- a/tests/test_litellm/llms/openai_like/responses/test_openai_like_responses.py
+++ b/tests/test_litellm/llms/openai_like/responses/test_openai_like_responses.py
@@ -2,16 +2,8 @@
 Tests for OpenAI-like Responses API support in the JSON provider system.
 """
 
-import os
-import sys
 from unittest.mock import patch
 
-import pytest
-
-sys.path.insert(
-    0, os.path.abspath(os.path.join(os.path.dirname(__file__), "../../../../.."))
-)
-
 
 class TestSimpleProviderConfigSupportedEndpoints:
     """Test the supported_endpoints field on SimpleProviderConfig."""
diff --git a/tests/test_litellm/llms/openai_like/test_abliteration_provider.py b/tests/test_litellm/llms/openai_like/test_abliteration_provider.py
index 8b8d443fc44..0888e54a880 100644
--- a/tests/test_litellm/llms/openai_like/test_abliteration_provider.py
+++ b/tests/test_litellm/llms/openai_like/test_abliteration_provider.py
@@ -2,12 +2,6 @@
 Unit tests for the Abliteration OpenAI-like provider.
 """
 
-import os
-import sys
-
-sys.path.insert(
-    0, os.path.abspath(os.path.join(os.path.dirname(__file__), "../../../.."))
-)
 
 from litellm.llms.openai_like.dynamic_config import create_config_class
 from litellm.llms.openai_like.json_loader import JSONProviderRegistry
diff --git a/tests/test_litellm/llms/openai_like/test_assemblyai_provider.py b/tests/test_litellm/llms/openai_like/test_assemblyai_provider.py
index 7eee810b271..b3dee2b05d3 100644
--- a/tests/test_litellm/llms/openai_like/test_assemblyai_provider.py
+++ b/tests/test_litellm/llms/openai_like/test_assemblyai_provider.py
@@ -2,12 +2,6 @@
 Unit tests for the AssemblyAI LLM Gateway OpenAI-like provider.
 """
 
-import os
-import sys
-
-sys.path.insert(
-    0, os.path.abspath(os.path.join(os.path.dirname(__file__), "../../../.."))
-)
 
 from litellm.llms.openai_like.dynamic_config import create_config_class
 from litellm.llms.openai_like.json_loader import JSONProviderRegistry
diff --git a/tests/test_litellm/llms/openai_like/test_charity_engine.py b/tests/test_litellm/llms/openai_like/test_charity_engine.py
index e3dc22fe895..f1e8231d92c 100644
--- a/tests/test_litellm/llms/openai_like/test_charity_engine.py
+++ b/tests/test_litellm/llms/openai_like/test_charity_engine.py
@@ -2,18 +2,12 @@
 Tests for Charity Engine provider configuration and integration.
 """
 
-import os
-import sys
 
 try:
     import pytest
 except ImportError:
     pytest = None
 
-# Add workspace to path
-workspace_path = os.path.abspath(os.path.join(os.path.dirname(__file__), "../../../.."))
-sys.path.insert(0, workspace_path)
-
 import litellm
 
 
diff --git a/tests/test_litellm/llms/openai_like/test_empiriolabs_provider.py b/tests/test_litellm/llms/openai_like/test_empiriolabs_provider.py
index 58f5e47d09e..7a2a9b02589 100644
--- a/tests/test_litellm/llms/openai_like/test_empiriolabs_provider.py
+++ b/tests/test_litellm/llms/openai_like/test_empiriolabs_provider.py
@@ -2,12 +2,6 @@
 Unit tests for the EmpirioLabs OpenAI-like provider.
 """
 
-import os
-import sys
-
-sys.path.insert(
-    0, os.path.abspath(os.path.join(os.path.dirname(__file__), "../../../.."))
-)
 
 from litellm.llms.openai_like.dynamic_config import create_config_class
 from litellm.llms.openai_like.json_loader import JSONProviderRegistry
diff --git a/tests/test_litellm/llms/openai_like/test_json_providers.py b/tests/test_litellm/llms/openai_like/test_json_providers.py
index d84cc8d3237..7cec305e204 100644
--- a/tests/test_litellm/llms/openai_like/test_json_providers.py
+++ b/tests/test_litellm/llms/openai_like/test_json_providers.py
@@ -3,7 +3,6 @@ Tests for JSON-based provider configuration system.
 """
 
 import os
-import sys
 from unittest.mock import patch
 
 try:
@@ -12,9 +11,8 @@ except ImportError:
     # pytest not available, will run as standalone script
     pytest = None
 
-# Add workspace to path
+# Repo root, used to locate model_prices_and_context_window.json.
 workspace_path = os.path.abspath(os.path.join(os.path.dirname(__file__), "../../../.."))
-sys.path.insert(0, workspace_path)
 
 import litellm
 
diff --git a/tests/test_litellm/llms/openai_like/test_xiaomi_mimo.py b/tests/test_litellm/llms/openai_like/test_xiaomi_mimo.py
index 8104fb12943..5337372f152 100644
--- a/tests/test_litellm/llms/openai_like/test_xiaomi_mimo.py
+++ b/tests/test_litellm/llms/openai_like/test_xiaomi_mimo.py
@@ -4,18 +4,12 @@ Related to issue #18794
 """
 
 import os
-import sys
-from unittest.mock import MagicMock, patch
 
 try:
     import pytest
 except ImportError:
     pytest = None
 
-# Add workspace to path
-workspace_path = os.path.abspath(os.path.join(os.path.dirname(__file__), "../../../.."))
-sys.path.insert(0, workspace_path)
-
 import litellm
 
 
diff --git a/tests/test_litellm/llms/vertex_ai/test_vertex_ai_psc_endpoint_support.py b/tests/test_litellm/llms/vertex_ai/test_vertex_ai_psc_endpoint_support.py
index 499bbf6ccd4..66a6ffcef31 100644
--- a/tests/test_litellm/llms/vertex_ai/test_vertex_ai_psc_endpoint_support.py
+++ b/tests/test_litellm/llms/vertex_ai/test_vertex_ai_psc_endpoint_support.py
@@ -5,13 +5,7 @@ Tests that LiteLLM properly constructs URLs when using custom api_base
 for PSC endpoints.
 """
 
-import os
-import sys
 
-import pytest
-
-# Add the litellm package to the path
-sys.path.insert(0, os.path.join(os.path.dirname(__file__), "../../../.."))
 
 from litellm.llms.vertex_ai.vertex_llm_base import VertexBase
 
diff --git a/tests/test_litellm/proxy/auth/test_banned_params_extra_body.py b/tests/test_litellm/proxy/auth/test_banned_params_extra_body.py
index e87b206a40a..4fd91f7aa92 100644
--- a/tests/test_litellm/proxy/auth/test_banned_params_extra_body.py
+++ b/tests/test_litellm/proxy/auth/test_banned_params_extra_body.py
@@ -5,15 +5,9 @@ descending into it, the banned-param boundary check is bypassed by
 nesting the same fields under ``extra_body``.
 """
 
-import os
-import sys
 
 import pytest
 
-sys.path.insert(
-    0, os.path.abspath(os.path.join(os.path.dirname(__file__), "../../../.."))
-)
-
 from litellm.proxy.auth.auth_utils import is_request_body_safe  # noqa: E402
 
 
diff --git a/tests/test_litellm/proxy/proxy_server/conftest.py b/tests/test_litellm/proxy/proxy_server/conftest.py
index c545965f9a9..0a37a9356dc 100644
--- a/tests/test_litellm/proxy/proxy_server/conftest.py
+++ b/tests/test_litellm/proxy/proxy_server/conftest.py
@@ -9,8 +9,6 @@ from __future__ import annotations
 
 import contextlib
 import os
-import sys
-from pathlib import Path
 from typing import Any, AsyncIterator, Callable, Dict, Iterator, List, Optional
 from unittest.mock import AsyncMock, MagicMock
 
@@ -20,7 +18,6 @@ import pytest
 # matter where pytest is invoked from. With the project installed via
 # uv this is defensive — `litellm` already resolves through site-packages
 # — but it lets the harness work in editable-source layouts too.
-sys.path.insert(0, str(Path(__file__).resolve().parents[4]))
 
 
 # ---------------------------------------------------------------------------
diff --git a/tests/test_litellm/proxy/test_component_allowlists.py b/tests/test_litellm/proxy/test_component_allowlists.py
index 0fdb43d60da..7ada757ec20 100644
--- a/tests/test_litellm/proxy/test_component_allowlists.py
+++ b/tests/test_litellm/proxy/test_component_allowlists.py
@@ -24,7 +24,6 @@ RDS IAM token when ``IAM_TOKEN_DB_AUTH`` is set).
 """
 
 import os
-import sys
 
 # Importing ``litellm.proxy.proxy_server`` runs its module-level setup, which
 # reads ``DATABASE_URL`` (Prisma) and ``LITELLM_MASTER_KEY``. Tier-zero CI
@@ -45,10 +44,6 @@ from fastapi.routing import Mount
 from prometheus_client import make_asgi_app
 
 # gateway/ and backend/ live at the repo root, not inside litellm/.
-_REPO_ROOT = os.path.abspath(os.path.join(os.path.dirname(__file__), "..", "..", ".."))
-if _REPO_ROOT not in sys.path:
-    sys.path.insert(0, _REPO_ROOT)
-
 from backend.routes.allowlist import (
     BACKEND_EXACT_PATHS,
     BACKEND_MOUNT_PATHS,
diff --git a/tests/test_litellm/proxy/test_model_level_guardrails.py b/tests/test_litellm/proxy/test_model_level_guardrails.py
index a1278e399b5..5d0a924423d 100644
--- a/tests/test_litellm/proxy/test_model_level_guardrails.py
+++ b/tests/test_litellm/proxy/test_model_level_guardrails.py
@@ -6,17 +6,11 @@ deployment are merged into request metadata and trigger execution for both
 streaming and non-streaming post_call hooks.
 """
 
-import os
-import sys
-
 import pytest
 from unittest.mock import AsyncMock, MagicMock, patch
 
-sys.path.insert(0, os.path.abspath(os.path.join(os.path.dirname(__file__), "../../..")))
-
 from litellm.proxy.utils import (
     _check_and_merge_model_level_guardrails,
-    _merge_guardrails_with_existing,
 )
 
 # ---------------------------------------------------------------------------
diff --git a/tests/test_litellm/proxy/types_utils/test_db_overlay_remote_module_scrub.py b/tests/test_litellm/proxy/types_utils/test_db_overlay_remote_module_scrub.py
index 100ba653f3a..0bbc994b73b 100644
--- a/tests/test_litellm/proxy/types_utils/test_db_overlay_remote_module_scrub.py
+++ b/tests/test_litellm/proxy/types_utils/test_db_overlay_remote_module_scrub.py
@@ -13,15 +13,9 @@ pass and ``_load_instance_from_remote_storage`` would exec the
 remote module.
 """
 
-import os
-import sys
 
 import pytest
 
-sys.path.insert(
-    0, os.path.abspath(os.path.join(os.path.dirname(__file__), "../../../.."))
-)
-
 from litellm.proxy.proxy_server import (  # noqa: E402
     _scrub_db_overlay_remote_module_loads,
 )
diff --git a/tests/test_litellm/proxy/types_utils/test_get_instance_fn_runtime_gate.py b/tests/test_litellm/proxy/types_utils/test_get_instance_fn_runtime_gate.py
index 3d76ad54a9c..b2c087b051a 100644
--- a/tests/test_litellm/proxy/types_utils/test_get_instance_fn_runtime_gate.py
+++ b/tests/test_litellm/proxy/types_utils/test_get_instance_fn_runtime_gate.py
@@ -7,16 +7,10 @@ unaffected — the documented ``litellm_settings.callbacks:
 ["s3://bucket/module.instance"]`` operator flow continues to work.
 """
 
-import os
-import sys
 from unittest.mock import patch
 
 import pytest
 
-sys.path.insert(
-    0, os.path.abspath(os.path.join(os.path.dirname(__file__), "../../../.."))
-)
-
 from litellm.proxy.types_utils.utils import get_instance_fn  # noqa: E402
 
 
diff --git a/tests/test_litellm/proxy/utils/prisma_and_spend/conftest.py b/tests/test_litellm/proxy/utils/prisma_and_spend/conftest.py
index fce51c9296c..c0cb82cb3e5 100644
--- a/tests/test_litellm/proxy/utils/prisma_and_spend/conftest.py
+++ b/tests/test_litellm/proxy/utils/prisma_and_spend/conftest.py
@@ -13,19 +13,14 @@ needing a generated Prisma client or a real database.
 from __future__ import annotations
 
 import asyncio
-import sys
 import threading
 from dataclasses import dataclass, field
 from email.message import EmailMessage
-from pathlib import Path
 from typing import Any, Callable, Dict, Iterator, List, Optional
 from unittest.mock import AsyncMock, MagicMock
 
 import pytest
 
-sys.path.insert(0, str(Path(__file__).resolve().parents[5]))
-
-
 VOLATILE_KEYS = frozenset(
     {
         "created_at",
@@ -188,6 +183,7 @@ def patched_prisma_import(monkeypatch: pytest.MonkeyPatch) -> Iterator[MagicMock
     directly and restore in teardown.
     """
     import prisma as _prisma_pkg
+
     import litellm.proxy.utils as _utils_mod
 
     fake_prisma = MagicMock(name="FakePrisma")
diff --git a/tests/test_litellm/proxy/utils/proxy_logging/conftest.py b/tests/test_litellm/proxy/utils/proxy_logging/conftest.py
index 74508a74e3b..32c269d7b21 100644
--- a/tests/test_litellm/proxy/utils/proxy_logging/conftest.py
+++ b/tests/test_litellm/proxy/utils/proxy_logging/conftest.py
@@ -6,16 +6,11 @@ live here. Tests should not declare fixtures inline.
 
 from __future__ import annotations
 
-import sys
-from pathlib import Path
 from typing import Any, Dict, Optional
 from unittest.mock import MagicMock
 
 import pytest
 
-sys.path.insert(0, str(Path(__file__).resolve().parents[5]))
-
-
 VOLATILE_KEYS = frozenset(
     {
         "created_at",
diff --git a/tests/test_litellm/test_chat_ui_responses_session.py b/tests/test_litellm/test_chat_ui_responses_session.py
index 2f960d4e827..d4345de2462 100644
--- a/tests/test_litellm/test_chat_ui_responses_session.py
+++ b/tests/test_litellm/test_chat_ui_responses_session.py
@@ -9,13 +9,8 @@ Verifies that:
 
 import inspect
 import json
-import os
-import sys
 import unittest.mock as mock
 
-# Use __file__ so the import path is correct regardless of the pytest working directory.
-sys.path.insert(0, os.path.join(os.path.dirname(__file__), "..", ".."))
-
 import httpx
 import pytest
 
diff --git a/tests/test_litellm/test_check_licenses.py b/tests/test_litellm/test_check_licenses.py
index 1218e44fade..948327bf8af 100644
--- a/tests/test_litellm/test_check_licenses.py
+++ b/tests/test_litellm/test_check_licenses.py
@@ -17,7 +17,7 @@ import requests
 _CODE_COVERAGE_DIR = os.path.join(
     os.path.dirname(os.path.abspath(__file__)), "..", "code_coverage_tests"
 )
-sys.path.insert(0, _CODE_COVERAGE_DIR)
+sys.path.insert(0, _CODE_COVERAGE_DIR)  # test-quality-ok: required to import checker from its source directory
 
 import check_licenses  # noqa: E402
 
diff --git a/tests/test_litellm/test_completion_timeout_resolution.py b/tests/test_litellm/test_completion_timeout_resolution.py
index 7eb79e90e60..45bd1ccf233 100644
--- a/tests/test_litellm/test_completion_timeout_resolution.py
+++ b/tests/test_litellm/test_completion_timeout_resolution.py
@@ -1,12 +1,7 @@
 """Unit tests for litellm.litellm_core_utils.completion_timeout.CompletionTimeout."""
 
-import os
-import sys
-
 import httpx
 
-sys.path.insert(0, os.path.abspath(os.path.join(os.path.dirname(__file__), "../../..")))
-
 from litellm.litellm_core_utils.completion_timeout import CompletionTimeout
 from litellm.utils import supports_httpx_timeout
 
diff --git a/tests/test_litellm/test_nested_drop_params.py b/tests/test_litellm/test_nested_drop_params.py
index bb1305ffde4..500db8624ca 100644
--- a/tests/test_litellm/test_nested_drop_params.py
+++ b/tests/test_litellm/test_nested_drop_params.py
@@ -4,13 +4,8 @@ Test nested path support in additional_drop_params.
 This tests the new JSONPath-like syntax for removing nested fields.
 """
 
-import os
-import sys
 
 
-# Add parent directory to path
-sys.path.insert(0, os.path.abspath(os.path.join(os.path.dirname(__file__), "../..")))
-
 from litellm.litellm_core_utils.dot_notation_indexing import (
     delete_nested_value,
     is_nested_path,
diff --git a/tests/test_litellm/test_ssl_verify_unit.py b/tests/test_litellm/test_ssl_verify_unit.py
index c39362c01a2..097ba279c68 100644
--- a/tests/test_litellm/test_ssl_verify_unit.py
+++ b/tests/test_litellm/test_ssl_verify_unit.py
@@ -5,15 +5,10 @@ These tests verify that ssl_verify parameters are correctly propagated
 through the call stack without requiring live API credentials.
 """
 
-import sys
-from pathlib import Path
 from unittest.mock import Mock, patch
 
 import pytest
 
-# Add litellm to path
-sys.path.insert(0, str(Path(__file__).parent))
-
 import litellm.proxy.guardrails.guardrail_hooks.aim.aim as _aim_module
 import litellm.proxy.guardrails.guardrail_hooks.cato_networks.cato_networks as _cato_networks_module
 from litellm.llms.bedrock.base_aws_llm import BaseAWSLLM
diff --git a/tests/test_litellm/test_vcr_safe_body_matcher.py b/tests/test_litellm/test_vcr_safe_body_matcher.py
index 712ecf09911..1a6f2096a97 100644
--- a/tests/test_litellm/test_vcr_safe_body_matcher.py
+++ b/tests/test_litellm/test_vcr_safe_body_matcher.py
@@ -1,15 +1,9 @@
 from __future__ import annotations
 
-import os
-import sys
 from types import SimpleNamespace
 
 import pytest
 
-_REPO_ROOT = os.path.abspath(os.path.join(os.path.dirname(__file__), "..", ".."))
-if _REPO_ROOT not in sys.path:
-    sys.path.insert(0, _REPO_ROOT)
-
 from tests._vcr_conftest_common import (  # noqa: E402
     KEY_FINGERPRINT_HEADER,
     KEY_FINGERPRINT_MATCHER_NAME,