Skip to content

Commit

Permalink
feat(init): initial commit (#1)
Browse files Browse the repository at this point in the history
  • Loading branch information
stainless-bot authored and ejlangev committed Oct 12, 2023
1 parent 1c8d534 commit cc75251
Show file tree
Hide file tree
Showing 62 changed files with 10,579 additions and 0 deletions.
20 changes: 20 additions & 0 deletions .github/workflows/create-releases.yml
Original file line number Diff line number Diff line change
@@ -0,0 +1,20 @@
name: Create releases
on:
push:
branches:
- main

jobs:
release:
name: release
if: github.ref == 'refs/heads/main' && github.repository == 'anthropics/anthropic-bedrock-python'
runs-on: ubuntu-latest

steps:
- uses: actions/checkout@v3

- uses: stainless-api/trigger-release-please@v1
id: release
with:
repo: ${{ github.event.repository.full_name }}
stainless-api-key: ${{ secrets.STAINLESS_API_KEY }}
24 changes: 24 additions & 0 deletions .github/workflows/handle-release-pr-title-edit.yml
Original file line number Diff line number Diff line change
@@ -0,0 +1,24 @@
name: Handle release PR title edits
on:
pull_request:
types:
- edited
- unlabeled

jobs:
update_pr_content:
name: Update pull request content
if: |
((github.event.action == 'edited' && github.event.changes.title.from != github.event.pull_request.title) ||
(github.event.action == 'unlabeled' && github.event.label.name == 'autorelease: custom version')) &&
startsWith(github.event.pull_request.head.ref, 'release-please--') &&
github.event.pull_request.state == 'open' &&
github.event.sender.login != 'stainless-bot' &&
github.repository == 'anthropics/anthropic-bedrock-python'
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@v3
- uses: stainless-api/trigger-release-please@v1
with:
repo: ${{ github.event.repository.full_name }}
stainless-api-key: ${{ secrets.STAINLESS_API_KEY }}
19 changes: 19 additions & 0 deletions .github/workflows/release-doctor.yml
Original file line number Diff line number Diff line change
@@ -0,0 +1,19 @@
name: Release Doctor
on:
pull_request:
workflow_dispatch:

jobs:
release_doctor:
name: release doctor
runs-on: ubuntu-latest
if: github.repository == 'anthropics/anthropic-bedrock-python' && (github.event_name == 'push' || github.event_name == 'workflow_dispatch' || startsWith(github.head_ref, 'release-please') || github.head_ref == 'next')

steps:
- uses: actions/checkout@v3

- name: Check release environment
run: |
bash ./bin/check-release-environment
env:
STAINLESS_API_KEY: ${{ secrets.STAINLESS_API_KEY }}
10 changes: 10 additions & 0 deletions .gitignore
Original file line number Diff line number Diff line change
@@ -0,0 +1,10 @@
.vscode
_dev

__pycache__
.mypy_cache

dist

.env
codegen.log
3 changes: 3 additions & 0 deletions .release-please-manifest.json
Original file line number Diff line number Diff line change
@@ -0,0 +1,3 @@
{
".": "0.0.1"
}
1 change: 1 addition & 0 deletions .stats.yml
Original file line number Diff line number Diff line change
@@ -0,0 +1 @@
configured_endpoints: 1
8 changes: 8 additions & 0 deletions LICENSE
Original file line number Diff line number Diff line change
@@ -0,0 +1,8 @@
Copyright 2023 Anthropic, PBC.

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

295 changes: 295 additions & 0 deletions README.md
Original file line number Diff line number Diff line change
@@ -0,0 +1,295 @@
# Anthropic Bedrock Python API library

[![PyPI version](https://img.shields.io/pypi/v/anthropic-bedrock.svg)](https://pypi.org/project/anthropic-bedrock/)

The Anthropic Bedrock Python library provides convenient access to the [Anthropic Bedrock](https://docs.anthropic.com/claude/docs/claude-on-amazon-bedrock) REST API from any Python 3.7+
application. It includes type definitions for all request params and response fields,
and offers both synchronous and asynchronous clients powered by [httpx](https://github.com/encode/httpx).

For the non-Bedrock Anthropic API at api.anthropic.com, see [`anthropic-python`](github.com/anthropics/anthropic-sdk-python).

## Documentation

The API documentation can be found [here](https://docs.anthropic.com/claude/reference/).

## Installation

```sh
pip install anthropic-bedrock
```

## Usage

The full API of this library can be found in [api.md](https://www.github.com/anthropics/anthropic-bedrock-python/blob/main/api.md).

```python
import anthropic_bedrock
from anthropic_bedrock import AnthropicBedrock

client = AnthropicBedrock(
# Authenticate by either providing the keys below or use the default AWS credential providers, such as
# using ~/.aws/credentials or the "AWS_SECRET_ACCESS_KEY" and "AWS_ACCESS_KEY_ID" environment variables.
aws_access_key="<access key>",
aws_secret_key="<secret key>",
# Temporary credentials can be used with aws_session_token.
# Read more at https://docs.aws.amazon.com/IAM/latest/UserGuide/id_credentials_temp.html.
aws_session_token="<session_token>",
# aws_region changes the aws region to which the request is made. By default, we read AWS_REGION,
# and if that's not present, we default to us-east-1. Note that we do not read ~/.aws/config for the region.
aws_region="us-east-2",
)

completion = client.completions.create(
model="anthropic.claude-v2",
max_tokens_to_sample=256,
prompt=f"{anthropic_bedrock.HUMAN_PROMPT} how does a court case get to the Supreme Court? {anthropic_bedrock.AI_PROMPT}",
)
print(completion.completion)
```

> This library uses [botocore](https://github.com/boto/botocore) internally for authentication; you can read more about the default providers [here](https://boto3.amazonaws.com/v1/documentation/api/latest/guide/credentials.html).
## Async usage

Simply import `AsyncAnthropicBedrock` instead of `AnthropicBedrock` and use `await` with each API call:

```python
import anthropic_bedrock
from anthropic_bedrock import AsyncAnthropicBedrock

client = AsyncAnthropicBedrock()


async def main():
completion = await client.completions.create(
model="anthropic.claude-v2",
max_tokens_to_sample=256,
prompt=f"{anthropic_bedrock.HUMAN_PROMPT} how does a court case get to the Supreme Court? {anthropic_bedrock.AI_PROMPT}",
)
print(completion.completion)


asyncio.run(main())
```

Functionality between the synchronous and asynchronous clients is otherwise identical.

## Streaming Responses

We provide support for streaming responses using Server Side Events (SSE).

```python
from anthropic_bedrock import AnthropicBedrock, HUMAN_PROMPT, AI_PROMPT

client = AnthropicBedrock()

stream = client.completions.create(
prompt=f"{HUMAN_PROMPT} Your prompt here{AI_PROMPT}",
max_tokens_to_sample=300,
model="anthropic.claude-v2",
stream=True,
)
for completion in stream:
print(completion.completion, end="", flush=True)
```

The async client uses the exact same interface.

```python
from anthropic_bedrock import AsyncAnthropicBedrock, HUMAN_PROMPT, AI_PROMPT

client = AsyncAnthropicBedrock()

stream = await client.completions.create(
prompt=f"{HUMAN_PROMPT} Your prompt here{AI_PROMPT}",
max_tokens_to_sample=300,
model="anthropic.claude-v2",
stream=True,
)
async for completion in stream:
print(completion.completion, end="", flush=True)
```

## Using types

Nested request parameters are [TypedDicts](https://docs.python.org/3/library/typing.html#typing.TypedDict). Responses are [Pydantic models](https://docs.pydantic.dev), which provide helper methods for things like serializing back into JSON ([v1](https://docs.pydantic.dev/1.10/usage/models/), [v2](https://docs.pydantic.dev/latest/usage/serialization/)). To get a dictionary, call `dict(model)`.

Typed requests and responses provide autocomplete and documentation within your editor. If you would like to see type errors in VS Code to help catch bugs earlier, set `python.analysis.typeCheckingMode` to `basic`.

## Token counting

You can estimate billing for a given request with the `client.count_tokens()` method, eg:

```py
client = AnthropicBedrock()
client.count_tokens('Hello world!') # 3
```

## Handling errors

When the library is unable to connect to the API (for example, due to network connection problems or a timeout), a subclass of `anthropic_bedrock.APIConnectionError` is raised.

When the API returns a non-success status code (that is, 4xx or 5xx
response), a subclass of `anthropic_bedrock.APIStatusError` is raised, containing `status_code` and `response` properties.

All errors inherit from `anthropic_bedrock.APIError`.

```python
import anthropic_bedrock
from anthropic_bedrock import AnthropicBedrock

client = AnthropicBedrock()

try:
client.completions.create(
prompt=f"{anthropic_bedrock.HUMAN_PROMPT} Your prompt here {anthropic_bedrock.AI_PROMPT}",
max_tokens_to_sample=256,
model="anthropic.claude-v2",
)
except anthropic_bedrock.APIConnectionError as e:
print("The server could not be reached")
print(e.__cause__) # an underlying Exception, likely raised within httpx.
except anthropic_bedrock.RateLimitError as e:
print("A 429 status code was received; we should back off a bit.")
except anthropic_bedrock.APIStatusError as e:
print("Another non-200-range status code was received")
print(e.status_code)
print(e.response)
```

Error codes are as followed:

| Status Code | Error Type |
| ----------- | -------------------------- |
| 400 | `BadRequestError` |
| 401 | `AuthenticationError` |
| 403 | `PermissionDeniedError` |
| 404 | `NotFoundError` |
| 422 | `UnprocessableEntityError` |
| 429 | `RateLimitError` |
| >=500 | `InternalServerError` |
| N/A | `APIConnectionError` |

### Retries

Certain errors are automatically retried 2 times by default, with a short exponential backoff.
Connection errors (for example, due to a network connectivity problem), 408 Request Timeout, 409 Conflict,
429 Rate Limit, and >=500 Internal errors are all retried by default.

You can use the `max_retries` option to configure or disable retry settings:

```python
from anthropic_bedrock import AnthropicBedrock, HUMAN_PROMPT, AI_PROMPT

# Configure the default for all requests:
client = AnthropicBedrock(
# default is 2
max_retries=0,
)

# Or, configure per-request:
client.with_options(max_retries=5).completions.create(
prompt=f"{HUMAN_PROMPT} Can you help me effectively ask for a raise at work?{AI_PROMPT}",
max_tokens_to_sample=300,
model="anthropic.claude-v2",
)
```

### Timeouts

By default requests time out after 1 minute. You can configure this with a `timeout` option,
which accepts a float or an [`httpx.Timeout`](https://www.python-httpx.org/advanced/#fine-tuning-the-configuration) object:

```python
from anthropic_bedrock import AnthropicBedrock, HUMAN_PROMPT, AI_PROMPT

# Configure the default for all requests:
client = AnthropicBedrock(
# default is 10 minutes
timeout=20.0,
)

# More granular control:
client = AnthropicBedrock(
timeout=httpx.Timeout(60.0, read=5.0, write=10.0, connect=2.0),
)

# Override per-request:
client.with_options(timeout=5 * 1000).completions.create(
prompt=f"{HUMAN_PROMPT} Where can I get a good coffee in my neighbourhood?{AI_PROMPT}",
max_tokens_to_sample=300,
model="anthropic.claude-v2",
)
```

On timeout, an `APITimeoutError` is thrown.

Note that requests that time out are [retried twice by default](#retries).

## Advanced

### Logging

We use the standard library [`logging`](https://docs.python.org/3/library/logging.html) module.

You can enable logging by setting the environment variable `ANTHROPIC_BEDROCK_LOG` to `debug`.

```shell
$ export ANTHROPIC_BEDROCK_LOG=debug
```

### How to tell whether `None` means `null` or missing

In an API response, a field may be explicitly `null`, or missing entirely; in either case, its value is `None` in this library. You can differentiate the two cases with `.model_fields_set`:

```py
if response.my_field is None:
if 'my_field' not in response.model_fields_set:
print('Got json like {}, without a "my_field" key present at all.')
else:
print('Got json like {"my_field": null}.')
```

### Configuring the HTTP client

You can directly override the [httpx client](https://www.python-httpx.org/api/#client) to customize it for your use case, including:

- Support for proxies
- Custom transports
- Additional [advanced](https://www.python-httpx.org/advanced/#client-instances) functionality

```python
import httpx
from anthropic_bedrock import AnthropicBedrock

client = AnthropicBedrock(
base_url="http://my.test.server.example.com:8083",
http_client=httpx.Client(
proxies="http://my.test.proxy.example.com",
transport=httpx.HTTPTransport(local_address="0.0.0.0"),
),
aws_secret_key="<secret key>",
aws_access_key="<access key>",
aws_region="us-east-2",
)
```

### Managing HTTP resources

By default the library closes underlying HTTP connections whenever the client is [garbage collected](https://docs.python.org/3/reference/datamodel.html#object.__del__). You can manually close the client using the `.close()` method if desired, or with a context manager that closes when exiting.

## Versioning

This package generally follows [SemVer](https://semver.org/spec/v2.0.0.html) conventions, though certain backwards-incompatible changes may be released as minor versions:

1. Changes that only affect static types, without breaking runtime behavior.
2. Changes to library internals which are technically public but not intended or documented for external use. _(Please open a GitHub issue to let us know if you are relying on such internals)_.
3. Changes that we do not expect to impact the vast majority of users in practice.

We take backwards-compatibility seriously and work hard to ensure you can rely on a smooth upgrade experience.

We are keen for your feedback; please open an [issue](https://www.github.com/anthropics/anthropic-bedrock-python/issues) with questions, bugs, or suggestions.

## Requirements

Python 3.7 or higher.
Loading

0 comments on commit cc75251

Please sign in to comment.