style: fix pre-commit failures (pylint, flake8, black)

- Synced from agenticCLI: trailing-comma drift in the key/provider
  wizards and the _print_no_key_prompt extraction that brings
  ensure_provider_key back under R0915.
- Test hygiene for the pylint gate: file-level disables where tests
  intentionally touch internals, from-imports (R0402), async-for
  draining instead of unassigned comprehensions (W0106).
- finetune/reinforcement: whitespace around == inside f-strings (E225),
  which only fails lint under Python 3.12's PEP 701 tokenizer.

Author: agentscope-ai-java

.github/workflows/pre-commit.yml

@@ -9,13 +9,13 @@ jobs:
       fail-fast: true
     env:
       OS: ubuntu-latest
-      PYTHON: '3.8'
+      PYTHON: '3.12'
     steps:
     - uses: actions/checkout@v4
     - name: Setup Python
       uses: actions/setup-python@v5
       with:
-        python-version: '3.8'
+        python-version: '3.12'
     - name: Update setuptools and wheel
       run: |
         pip install setuptools==68.2.2 wheel==0.41.2

.github/workflows/unit_test.yml

@@ -16,7 +16,7 @@ jobs:
     strategy:
       matrix:
         os: [ ubuntu-latest ]
-        python-version: [ '3.8' ]
+        python-version: [ '3.9', '3.10', '3.11', '3.12', '3.13' ]
 
 
     steps:

README.md

@@ -52,7 +52,7 @@ else:
 
 ## API Key Authentication
 
-The SDK uses API key for authentication. Please refer to [official documentation for alibabacloud china](https://www.alibabacloud.com/help/en/model-studio/) and [official documentation for alibabacloud international](https://www.alibabacloud.com/help/en/model-studio/) regarding how to obtain your api-key.
+The SDK uses API key for authentication. To obtain an API Key, see [How to get an API Key](https://help.aliyun.com/en/model-studio/get-api-key). Please refer to [official documentation for alibabacloud china](https://www.alibabacloud.com/help/en/model-studio/) and [official documentation for alibabacloud international](https://www.alibabacloud.com/help/en/model-studio/) regarding how to obtain your api-key.
 
 ### Using the API Key
 
@@ -89,12 +89,94 @@ save_api_key(api_key='YOUR-DASHSCOPE-API-KEY',
 
 ```
 
+## Region and Endpoint Configuration
+
+By default the SDK sends requests to the China (Beijing) public endpoint `dashscope.aliyuncs.com`. If your Model Studio (Bailian) workspace lives in another region, switch the endpoint before making calls.
+
+### Using `set_region`
+
+`dashscope.set_region(region, workspace_id)` points the HTTP, WebSocket and OpenAI-compatible base URLs at the given region in a single call. `workspace_id` is required and is used as the endpoint subdomain.
+
+```python
+import dashscope
+
+# Switch to the Singapore region for workspace "ws-xxx123"
+dashscope.set_region(region="ap-southeast-1", workspace_id="ws-xxx123")
+
+# All subsequent calls use:
+#   https://ws-xxx123.ap-southeast-1.maas.aliyuncs.com/api/v1
+print(dashscope.base_http_api_url)
+```
+
+Supported regions:
+
+| Region | Location |
+|--------|----------|
+| `cn-beijing` | China (Beijing) |
+| `cn-hongkong` | China (Hong Kong) |
+| `ap-southeast-1` | Singapore |
+| `ap-northeast-1` | Japan (Tokyo) |
+| `eu-central-1` | Germany (Frankfurt) |
+| `us-east-1` | US (Virginia) |
+
+> **API keys are region-specific.** Each region issues its own API keys (`sk-` prefix) in its Model Studio console, and keys cannot be mixed across regions — using a key from another region fails with `401`. Switch `api_key` together with the region.
+
+Region-specific notes:
+
+- WebSocket endpoints (`wss://.../api-ws/v1/inference`) are only served in `cn-beijing` and `ap-southeast-1`. `set_region` still sets `base_websocket_api_url` for every region, but WebSocket-based realtime APIs (realtime speech recognition/synthesis, multimodal dialog, etc.) are not available in the other regions.
+- `eu-central-1` / `ap-northeast-1`: the deployment scope (Global, or EU / Japan) is chosen when the workspace is created in the console, not per API call.
+- `us-east-1`: model names with the `-us` suffix (e.g. `qwen-plus-us`) restrict inference to the US; names without the suffix default to global inference.
+- Batch inference, model fine-tuning and application development are currently only available in `cn-beijing` and `ap-southeast-1`.
+
+> `set_region` updates process-wide globals, so it is not concurrency-safe when a single process talks to multiple regions at the same time. Call it once at startup, or re-call it before each switch.
+
+### Using environment variables
+
+You can also select the region without code:
+
+```shell
+export DASHSCOPE_API_REGION='ap-southeast-1'   # default: cn-beijing
+export DASHSCOPE_WORKSPACE_ID='ws-xxx123'      # used to resolve the endpoint subdomain
+```
+
+When a MaaS region is set via `DASHSCOPE_API_REGION`, the SDK builds the regional endpoints and substitutes `DASHSCOPE_WORKSPACE_ID` into them. You can also override each base URL directly:
+
+| Environment variable | Overrides |
+|----------------------|-----------|
+| `DASHSCOPE_HTTP_BASE_URL` | HTTP endpoint (`dashscope.base_http_api_url`) |
+| `DASHSCOPE_WEBSOCKET_BASE_URL` | WebSocket endpoint (`dashscope.base_websocket_api_url`) |
+| `DASHSCOPE_COMPATIBLE_BASE_URL` | OpenAI-compatible endpoint (`dashscope.base_compatible_api_url`) |
+
+`set_region` always builds workspace-exclusive endpoints. Some regions also offer shared domains without a workspace subdomain — `dashscope.aliyuncs.com` (Beijing), `dashscope-intl.aliyuncs.com` (Singapore) and `dashscope-us.aliyuncs.com` (US Virginia); use the override variables above to point at them.
+
+### OpenAI-compatible chat completions
+
+The SDK exposes an OpenAI-compatible chat completions entry that talks to `dashscope.base_compatible_api_url` (request path `chat/completions`) — no extra `openai` package required. It follows the region configured above.
+
+```python
+import dashscope
+from dashscope.aigc.chat_completion import Completions
+
+dashscope.set_region(region="cn-hongkong", workspace_id="ws-hk-789")
+
+response = Completions.create(
+    model="qwen-max",
+    messages=[{"role": "user", "content": "Hello"}],
+    api_key="YOUR-DASHSCOPE-API-KEY",
+    stream=False,  # set True to get a generator of ChatCompletionChunk
+)
+print(response)
+```
+
+A complete runnable example is available in [`samples/set_region_example.py`](samples/set_region_example.py).
+
 ## AI Assistant: DashScope SDK Expert
 
 The SDK ships with an interactive AI assistant, **DashScope SDK Expert**, built on the bundled Agentic CLI (`dashscope/acli`) framework. For DashScope SDK/CLI users it is the recommended way to get development consultation and AI coding help — answering SDK/API questions, generating runnable examples, showing CLI usage, and diagnosing errors, right in your terminal.
 
 - Run `dashscope` with no arguments to start the assistant. On first run it offers to install the SDK Expert knowledge pack (per-domain quick-reference skills: text, multimodal, speech, retrieval, fine-tuning, agent, cli), so guidance comes from the SDK's public interfaces — parameters, outputs, error codes — without reading the source
 - Ask it instead of reading docs — e.g. `dashscope "how do I stream Generation output"` or `dashscope "CLI command to cancel a fine-tuning job"`. Type `/help` inside the assistant to list available commands (`/setup`, `/skill`, `/stats`, ...); classic SDK subcommands still work, and unrecognized commands are routed to the assistant
+- Full walkthrough: [DashScope SDK Expert guide](https://help.aliyun.com/en/model-studio/dashscope-sdk-expert)
 
 ## Supported Models
 

README_zh.md

@@ -51,7 +51,7 @@ else:
 
 ## API Key 鉴权
 
-SDK 使用 API Key 进行鉴权。获取 API Key 的方法请参考[阿里云百炼官方文档（国内站）](https://help.aliyun.com/zh/model-studio/)和[阿里云百炼官方文档（国际站）](https://www.alibabacloud.com/help/en/model-studio/)。
+SDK 使用 API Key 进行鉴权。获取 API Key 请参见[如何获取 API Key](https://help.aliyun.com/zh/model-studio/get-api-key)，或参考[阿里云百炼官方文档（国内站）](https://help.aliyun.com/zh/model-studio/)和[阿里云百炼官方文档（国际站）](https://www.alibabacloud.com/help/en/model-studio/)。
 
 ### 使用 API Key
 
@@ -88,12 +88,94 @@ save_api_key(api_key='YOUR-DASHSCOPE-API-KEY',
 
 ```
 
+## 区域与端点配置
+
+默认情况下，SDK 将请求发往华北2（北京）公共端点 `dashscope.aliyuncs.com`。如果你的百炼（Model Studio）业务空间位于其他区域，请在调用前先切换端点。
+
+### 使用 `set_region`
+
+`dashscope.set_region(region, workspace_id)` 会一次性把 HTTP、WebSocket 和 OpenAI-compatible 三个 base URL 指向指定区域。`workspace_id` 为必填项，会作为端点的子域名。
+
+```python
+import dashscope
+
+# 切换到新加坡区域，业务空间为 "ws-xxx123"
+dashscope.set_region(region="ap-southeast-1", workspace_id="ws-xxx123")
+
+# 之后所有调用都会使用：
+#   https://ws-xxx123.ap-southeast-1.maas.aliyuncs.com/api/v1
+print(dashscope.base_http_api_url)
+```
+
+支持的区域：
+
+| 区域 | 地理位置 |
+|--------|----------|
+| `cn-beijing` | 华北2（北京） |
+| `cn-hongkong` | 中国（香港） |
+| `ap-southeast-1` | 新加坡 |
+| `ap-northeast-1` | 日本（东京） |
+| `eu-central-1` | 德国（法兰克福） |
+| `us-east-1` | 美国（弗吉尼亚） |
+
+> **各地域 API Key 相互独立。**每个地域的 API Key（`sk-` 前缀）需在对应地域的百炼控制台创建，不可跨地域混用——使用其他地域的 Key 会返回 `401`。切换地域时请同步更换 `api_key`。
+
+地域特殊说明：
+
+- WebSocket 端点（`wss://.../api-ws/v1/inference`）目前仅 `cn-beijing` 与 `ap-southeast-1` 提供。`set_region` 对所有地域都会设置 `base_websocket_api_url`，但实时语音识别/合成、多模态对话等基于 WebSocket 的实时 API 在其他地域不可用。
+- `eu-central-1` / `ap-northeast-1`：部署范围（全球，或欧盟 / 日本）在控制台创建业务空间时选择，不在 API 调用层配置。
+- `us-east-1`：模型名带 `-us` 后缀（如 `qwen-plus-us`）限定美国境内推理；不带后缀默认全球推理。
+- 批量推理、模型调优、应用开发等高级功能目前仅 `cn-beijing` 与 `ap-southeast-1` 支持。
+
+> `set_region` 修改的是进程级全局变量，因此在单进程同时访问多个区域时并非并发安全。建议在启动时调用一次，或在每次切换前重新调用。
+
+### 使用环境变量
+
+也可以不写代码，直接通过环境变量选择区域：
+
+```shell
+export DASHSCOPE_API_REGION='ap-southeast-1'   # 默认：cn-beijing
+export DASHSCOPE_WORKSPACE_ID='ws-xxx123'      # 用于解析端点子域名
+```
+
+当通过 `DASHSCOPE_API_REGION` 设置了 MaaS 区域时，SDK 会构造对应的区域端点，并把 `DASHSCOPE_WORKSPACE_ID` 代入其中。你也可以直接覆盖每一个 base URL：
+
+| 环境变量 | 覆盖的对象 |
+|----------------------|-----------|
+| `DASHSCOPE_HTTP_BASE_URL` | HTTP 端点（`dashscope.base_http_api_url`） |
+| `DASHSCOPE_WEBSOCKET_BASE_URL` | WebSocket 端点（`dashscope.base_websocket_api_url`） |
+| `DASHSCOPE_COMPATIBLE_BASE_URL` | OpenAI-compatible 端点（`dashscope.base_compatible_api_url`） |
+
+`set_region` 构造的始终是业务空间专属域名。部分地域还提供不含 workspace 子域名的共享域名——北京 `dashscope.aliyuncs.com`、新加坡 `dashscope-intl.aliyuncs.com`、美国 `dashscope-us.aliyuncs.com`，如需使用可通过上面的环境变量直接覆盖。
+
+### OpenAI-compatible 对话补全
+
+SDK 提供了 OpenAI-compatible 的对话补全入口，它会请求 `dashscope.base_compatible_api_url`（请求路径 `chat/completions`）——无需额外安装 `openai` 库，并自动跟随上面配置的区域。
+
+```python
+import dashscope
+from dashscope.aigc.chat_completion import Completions
+
+dashscope.set_region(region="cn-hongkong", workspace_id="ws-hk-789")
+
+response = Completions.create(
+    model="qwen-max",
+    messages=[{"role": "user", "content": "你好"}],
+    api_key="YOUR-DASHSCOPE-API-KEY",
+    stream=False,  # 设为 True 则返回 ChatCompletionChunk 生成器
+)
+print(response)
+```
+
+完整可运行示例见 [`samples/set_region_example.py`](samples/set_region_example.py)。
+
 ## AI 助手：DashScope SDK Expert
 
 SDK 内置了交互式 AI 助手 **DashScope SDK Expert**，基于随包提供的 Agentic CLI（`dashscope/acli`）框架构建。对于 DashScope SDK/CLI 用户，它是获取开发咨询和 AI 编码帮助的推荐方式——直接在终端中解答 SDK/API 问题、生成可运行示例、展示 CLI 用法、诊断错误。
 
 - 直接运行 `dashscope`（不带参数）即可启动助手。首次运行时会提示安装 SDK Expert 知识包（按领域划分的速查技能：文本、多模态、语音、检索、微调、Agent、CLI），使助手的指导来自 SDK 的公开接口——参数、输出、错误码——而无需阅读源码
 - 直接提问代替翻文档——如 `dashscope "如何流式输出 Generation 结果"` 或 `dashscope "取消微调任务的 CLI 命令"`。在助手内输入 `/help` 可列出可用命令（`/setup`、`/skill`、`/stats` 等）；经典 SDK 子命令依然可用，无法识别的命令会自动转给助手处理
+- 完整使用指南：[DashScope SDK Expert 文档](https://help.aliyun.com/zh/model-studio/dashscope-sdk-expert)
 
 ## 支持的模型
 

dashscope/__init__.py

@@ -31,8 +31,10 @@
 )
 from dashscope.audio.tts.speech_synthesizer import SpeechSynthesizer
 from dashscope.api_entities.aio_session import close_shared_aio_session
+from dashscope.api_entities.http_request import close_shared_sync_session
 from dashscope.common.api_key import save_api_key
 from dashscope.common.env import (
+    MAAS_REGIONS,
     api_key,
     api_key_file_path,
     base_compatible_api_url,
@@ -80,6 +82,48 @@
     list_tokenizers,
 )
 
+
+# cn-beijing defaults to the legacy dashscope.aliyuncs.com endpoints;
+# its MaaS URLs are only reachable via an explicit set_region() call.
+_MAAS_REGIONS = {*MAAS_REGIONS, "cn-beijing"}
+
+
+def set_region(region: str, workspace_id: str = None):
+    """Switch to a specific MaaS region.
+
+    Updates base_http_api_url, base_compatible_api_url and
+    base_websocket_api_url to point to the MaaS endpoint for the
+    given region and workspace.
+
+    Args:
+        region (str): The MaaS region, e.g. "ap-southeast-1",
+            "us-east-1", "cn-hongkong", "cn-beijing", "eu-central-1",
+            "ap-northeast-1".
+        workspace_id (str): The workspace ID, used as the subdomain
+            of the MaaS endpoint.
+
+    Raises:
+        ValueError: If region is not supported or workspace_id is
+            empty.
+    """
+    if region not in _MAAS_REGIONS:
+        raise ValueError(
+            f"Unsupported region '{region}'. "
+            f"Supported regions: {sorted(_MAAS_REGIONS)}",
+        )
+
+    if not workspace_id:
+        raise ValueError("workspace_id is required")
+
+    global base_http_api_url, base_compatible_api_url
+    global base_websocket_api_url
+
+    host = f"{workspace_id}.{region}.maas.aliyuncs.com"
+    base_http_api_url = f"https://{host}/api/v1"
+    base_compatible_api_url = f"https://{host}/compatible-mode/v1"
+    base_websocket_api_url = f"wss://{host}/api-ws/v1/inference"
+
+
 __all__ = [
     "__version__",
     "base_compatible_api_url",
@@ -89,6 +133,7 @@
     "api_key_file_path",
     "save_api_key",
     "close_shared_aio_session",
+    "close_shared_sync_session",
     "AioGeneration",
     "Conversation",
     "Generation",
@@ -139,6 +184,7 @@
     "MessageFile",
     "AssistantFile",
     "VideoSynthesis",
+    "set_region",
 ]
 
 logging.getLogger(__name__).addHandler(NullHandler())

dashscope/__init__.pyi

@@ -22,6 +22,8 @@ base_websocket_api_url: str
 
 def save_api_key(api_key: str, file_path: Optional[str] = ...) -> None: ...
 def close_shared_aio_session() -> None: ...
+def close_shared_sync_session() -> None: ...
+def set_region(region: str, workspace_id: Optional[str] = ...) -> None: ...
 
 # ---------------------------------------------------------------------------
 # Response types

dashscope/acli/__init__.py

@@ -3,7 +3,7 @@
 
 import uuid
 
-__version__ = "0.6.2"
+__version__ = "0.6.4"
 
 # Per-process identifier sent as x-dashscope-sdk-session-id so the
 # backend can group multi-turn requests from one CLI run.