## 1.7.0 (2026-09-18)
Full Changelog: [v1.6.0...v1.7.0](https://github.com/anthropics/anthropic-sdk-python/compare/v1.6.0...v1.7.0)
### Features
* **api:** add group with display_name to rate limits, deprecate group_type ([28f0a83](https://github.com/anthropics/anthropic-sdk-python/commit/28f0a831355fa3d539fd3e1db1c63f92a39bb252))
* **tools:** add compact_before_next_turn() to the tool runner ([#641](https://github.com/anthropics/anthropic-sdk-python/issues/641)) ([8b23fb3](https://github.com/anthropics/anthropic-sdk-python/commit/8b23fb33f326c7ffa52e8d925902af0fd94501ce))
### Bug Fixes
* **bedrock:** raise an API error for eventstream exception and error frames ([#769](https://github.com/anthropics/anthropic-sdk-python/issues/769)) ([8ec9cc9](https://github.com/anthropics/anthropic-sdk-python/commit/8ec9cc9bdf7278ce7a1557dc7d6e455c7808946e))
* **client:** accept `X | Y` union types when parsing responses ([b366fa5](https://github.com/anthropics/anthropic-sdk-python/commit/b366fa5a1d62e4908a35415a1692f18621cf9e2c))
* **client:** don't raise TypeError for `X | Y` fields with unknown data ([30ebd69](https://github.com/anthropics/anthropic-sdk-python/commit/30ebd6963c4b21044fc8d7f8cf33a19981c74856))
* **client:** join multiple anthropic-beta values with a comma and no space ([#781](https://github.com/anthropics/anthropic-sdk-python/issues/781)) ([1680324](https://github.com/anthropics/anthropic-sdk-python/commit/168032429a6880ef7063de7680c7abe18e45be35))
* **tools:** tidy compact_before_next_turn() state and failure handling ([#804](https://github.com/anthropics/anthropic-sdk-python/issues/804)) ([d3a9fc8](https://github.com/anthropics/anthropic-sdk-python/commit/d3a9fc80f9792eda4944e33efb821306e632b7c6))
### Chores
* **deps:** require pydantic 1.10 or later ([91931e1](https://github.com/anthropics/anthropic-sdk-python/commit/91931e1d205839e72b2a4c2c851b18874f935943))
* **docs:** add descriptions for enum values and path parameters ([99184dc](https://github.com/anthropics/anthropic-sdk-python/commit/99184dc76a7a6c404478556483d2118498994a47))
* **docs:** clarify the compaction tool_changes and tool change descriptions ([eacc0ff](https://github.com/anthropics/anthropic-sdk-python/commit/eacc0ffde324201faac42fdcb60500b2076c25b6))
* **internal:** add more unnecessary cast comments ([9e6ce27](https://github.com/anthropics/anthropic-sdk-python/commit/9e6ce27b8d89c737bd427fc91b96f9932431f547))
* **internal:** pass strict= to zip() in the MCP tool helpers ([13cfe64](https://github.com/anthropics/anthropic-sdk-python/commit/13cfe644920119b718e0a73085b7ecd9726fb9e9))
* **internal:** remove an unused noqa comment from the model tests ([2c18298](https://github.com/anthropics/anthropic-sdk-python/commit/2c18298ff35a1b28b98d25b424e928b3865ef405))
* **internal:** set ruff's target version to Python 3.10 ([2bdfd41](https://github.com/anthropics/anthropic-sdk-python/commit/2bdfd415fe4842b44f871b31328cc76135b48fbb))
▸ 主项目介绍 · anthropics/anthropic-sdk-python
▸ README 原文（同步于 2026-07-19 13:24）
# Claude SDK for Python
[](https://pypi.org/project/anthropic/)
The Claude SDK for Python provides access to the [Claude API](https://docs.anthropic.com/en/api/) from Python applications.
## Documentation
Full documentation is available at **[platform.claude.com/docs/en/api/sdks/python](https://platform.claude.com/docs/en/api/sdks/python)**.
## Installation
```sh
pip install anthropic
```
## Getting started
```python
import os
from anthropic import Anthropic
client = Anthropic(
api_key=os.environ.get("ANTHROPIC_API_KEY"), # This is the default and can be omitted
)
message = client.messages.create(
max_tokens=1024,
messages=[
{
"role": "user",
"content": "Hello, Claude",
}
],
model="claude-opus-4-6",
)
print(message.content)
```
## Requirements
Python 3.9+
## Contributing
See [CONTRIBUTING.md](./CONTRIBUTING.md).
## License
This project is licensed under the MIT License. See the [LICENSE](LICENSE) file for details.