anthropic[vertex] has missing requests dependency

[shobsi]

I install anthropic[vertex]

pip install anthropic[vertex]

Then write this code:

def anthropic_transformer(message: str) -> str:
  from anthropic import AnthropicVertex
  client = AnthropicVertex(region=LOCATION, project_id=PROJECT)

  message = client.messages.create(
              max_tokens=1024,
              messages=[
                  {
                      "role": "user",
                      "content": message,
                  }
              ],
              model="claude-3-5-sonnet@20240620",
          )
  content_text = message.content[0].text if message.content else ""
  return content_text

It is running into the following exception:

line 7, in anthropic_transformer
 File \"/layers/google.python.pip/pip/lib/python3.10/site-packages/anthropic/_utils/_utils.py\", 
line 275, in wrapper
 return func(*args, **kwargs)
 File \"/layers/google.python.pip/pip/lib/python3.10/site-packages/anthropic/resources/messages.py\", 
line 888, in create
 return self._post(
 File \"/layers/google.python.pip/pip/lib/python3.10/site-packages/anthropic/_base_client.py\", 
line 1277, in post
 return cast(ResponseT, self.request(cast_to, opts, stream=stream, stream_cls=stream_cls))
 File \"/layers/google.python.pip/pip/lib/python3.10/site-packages/anthropic/_base_client.py\", 
line 954, in request
 return self._request(
 File \"/layers/google.python.pip/pip/lib/python3.10/site-packages/anthropic/_base_client.py\", 
line 981, in _request
 self._prepare_request(request)
 File \"/layers/google.python.pip/pip/lib/python3.10/site-packages/anthropic/lib/vertex/_client.py\", 
line 159, in _prepare_request
 request.headers[\"Authorization\"] = f\"Bearer {self._ensure_access_token()}\"
 File \"/layers/google.python.pip/pip/lib/python3.10/site-packages/anthropic/lib/vertex/_client.py\", 
line 166, in _ensure_access_token
 self.credentials, project_id = load_auth(project_id=self.project_id)
 File \"/layers/google.python.pip/pip/lib/python3.10/site-packages/anthropic/lib/vertex/_auth.py\", 
line 19, in load_auth
 from google.auth.transport.requests import Request # type: ignore[import-untyped]
 File \"/layers/google.python.pip/pip/lib/python3.10/site-packages/google/auth/transport/requests.py\", 
line 28, in <module>
 raise ImportError(
ImportError: The requests library is not installed from please install the requests package to use the requests transport.
"} .

Looks like google-auth needs requests library:

https://github.com/googleapis/google-auth-library-python/blob/3fae8f8368d4651cd11d4af3d80f687eab033175/google/auth/transport/requests.py#L28

google-auth defined "requests" extra:

https://github.com/googleapis/google-auth-library-python/blob/3fae8f8368d4651cd11d4af3d80f687eab033175/setup.py#L33

But anthropic[vertex] uses plain google-auth dependency:

anthropic-sdk-python/pyproject.toml

Line 39 in a3c59fc

vertex = ["google-auth >=2, <3"]

[RobertCraigie]

Thanks for the report, I think a previous version of the google-auth library must've included requests by default... do you know if that was the case and when this was changed?

edit: hmm I'm not seeing any mention of this in the changelog, maybe something was wrong with our env while testing

[shobsi]

Thanks for the report, I think a previous version of the google-auth library must've included requests by default... do you know if that was the case and when this was changed?

edit: hmm I'm not seeing any mention of this in the changelog, maybe something was wrong with our env while testing

Yeah there isn't a change in their dependencies in last 3 months https://github.com/googleapis/google-auth-library-python/commits/3fae8f8368d4651cd11d4af3d80f687eab033175/setup.py

[shobsi]

FWIW, I worked around by doing pip install google-auth[requests] in our environment.