{"record":{"id":"6532f9e0e3f886f7","repo":"crewAIInc/crewAI","slug":"anthropic-is-required-for-anthropic-file-uploads","errorCode":null,"errorMessage":"anthropic is required for Anthropic file uploads. Install with: pip install anthropic","messagePattern":"anthropic is required for Anthropic file uploads\\. Install with: pip install anthropic","errorType":"exception","errorClass":"ImportError","httpStatus":null,"severity":"error","filePath":"lib/crewai-files/src/crewai_files/uploaders/anthropic.py","lineNumber":56,"sourceCode":"        \"\"\"\n        self._api_key = api_key or os.environ.get(\"ANTHROPIC_API_KEY\")\n        self._client: Any = client\n        self._async_client: Any = async_client\n\n    @property\n    def provider_name(self) -> str:\n        \"\"\"Return the provider name.\"\"\"\n        return \"anthropic\"\n\n    def _get_client(self) -> Any:\n        \"\"\"Get or create the Anthropic client.\"\"\"\n        if self._client is None:\n            try:\n                import anthropic\n\n                self._client = anthropic.Anthropic(api_key=self._api_key)\n            except ImportError as e:\n                raise ImportError(\n                    \"anthropic is required for Anthropic file uploads. \"\n                    \"Install with: pip install anthropic\"\n                ) from e\n        return self._client\n\n    def _get_async_client(self) -> Any:\n        \"\"\"Get or create the async Anthropic client.\"\"\"\n        if self._async_client is None:\n            try:\n                import anthropic\n\n                self._async_client = anthropic.AsyncAnthropic(api_key=self._api_key)\n            except ImportError as e:\n                raise ImportError(\n                    \"anthropic is required for Anthropic file uploads. \"\n                    \"Install with: pip install anthropic\"\n                ) from e\n        return self._async_client","sourceCodeStart":38,"sourceCodeEnd":74,"githubUrl":"https://github.com/crewAIInc/crewAI/blob/754d7323beb2fd042e33444a115ea2d5a47193f0/lib/crewai-files/src/crewai_files/uploaders/anthropic.py#L38-L74","documentation":"ImportError raised lazily on first use of the Anthropic uploader's sync client (_get_client): importing anthropic failed, so the SDK is not installed in the active environment. The check happens at client-creation time, not at uploader construction, so instantiation succeeds and the error surfaces on the first upload call.","triggerScenarios":"Constructing AnthropicUploader(...) and calling upload(file) when the anthropic package is not installed in the current interpreter, or when a different virtualenv/Python than the one where crewai-files was installed is being used.","commonSituations":"Using file uploads without installing the [anthropic] extra, running under a container or notebook kernel with a different environment, or a dependency conflict that uninstalled anthropic.","solutions":["Install the SDK in the active environment: pip install anthropic (or uv add 'crewai-files[anthropic]' if the extra exists).","Verify the right interpreter is being used: python -c \"import anthropic\" in the same venv that runs the app.","Pre-warm the client right after constructing the uploader (call uploader._get_client()) so a missing SDK fails fast at startup instead of mid-job."],"exampleFix":"# before\nuploader = AnthropicUploader(api_key=...)\nresult = uploader.upload(file)  # ImportError at job time\n\n# after\n# install first: pip install anthropic\nuploader = AnthropicUploader(api_key=...)\nuploader._get_client()  # fail fast at startup if SDK missing\nresult = uploader.upload(file)","handlingStrategy":"validation","validationCode":"def anthropic_sdk_available() -> bool:\n    try:\n        import anthropic  # noqa: F401\n        return True\n    except ImportError:\n        return False\n\nif not anthropic_sdk_available():\n    raise RuntimeError(\"install `pip install anthropic` before enabling file uploads\")","typeGuard":null,"tryCatchPattern":"try:\n    uploader.upload(file)\nexcept ImportError as e:\n    if \"anthropic\" in str(e):\n        logger.error(\"missing dependency: pip install anthropic\")\n    raise","preventionTips":["Declare the anthropic dependency in the same environment manifest that enables file uploads.","Warm uploader._get_client() during startup wiring to fail fast.","Add a smoke test that imports each optional SDK your uploaders use."],"tags":["import-error","anthropic","dependency","file-upload"],"backgroundTag":null,"analyzedSha":"754d7323beb2fd042e33444a115ea2d5a47193f0","analyzedAt":"2026-08-15T04:06:56.746Z","schemaVersion":2},"datasetVersion":"2026-08-15T17:31:12.345Z"}