Use multiline strings instead of mixing '' and ""

src/neo4j_graphrag/embeddings/cohere.py

@@ -28,8 +28,8 @@ class CohereEmbeddings(Embedder):
     def __init__(self, model: str = "", **kwargs: Any) -> None:
         if cohere is None:
             raise ImportError(
-                "Could not import cohere python client. "
-                'Please install it with `pip install "neo4j-graphrag[cohere]"`.'
+                """Could not import cohere python client.
+                Please install it with `pip install "neo4j-graphrag[cohere]"`."""
             )
         self.model = model
         self.client = cohere.Client(**kwargs)

src/neo4j_graphrag/embeddings/mistral.py

@@ -39,8 +39,8 @@ class MistralAIEmbeddings(Embedder):
     def __init__(self, model: str = "mistral-embed", **kwargs: Any) -> None:
         if Mistral is None:
             raise ImportError(
-                "Could not import mistralai. "
-                'Please install it with `pip install "neo4j-graphrag[mistralai]"`.'
+                """Could not import mistralai.
+                Please install it with `pip install "neo4j-graphrag[mistralai]"`."""
             )
         api_key = kwargs.pop("api_key", None)
         if api_key is None:

src/neo4j_graphrag/embeddings/openai.py

@@ -36,8 +36,8 @@ def __init__(self, model: str = "text-embedding-ada-002", **kwargs: Any) -> None
             import openai
         except ImportError:
             raise ImportError(
-                "Could not import openai python client. "
-                'Please install it with `pip install "neo4j-graphrag[openai]"`.'
+                """Could not import openai python client.
+                Please install it with `pip install "neo4j-graphrag[openai]"`."""
             )
         self.openai = openai
         self.model = model

src/neo4j_graphrag/embeddings/sentence_transformers.py

@@ -28,8 +28,8 @@ def __init__(
             import torch
         except ImportError:
             raise ImportError(
-                "Could not import sentence_transformers python package. "
-                'Please install it with `pip install "neo4j-graphrag[sentence-transformers]"`.'
+                """Could not import sentence_transformers python package.
+                Please install it with `pip install "neo4j-graphrag[sentence-transformers]"`."""
             )
         self.torch = torch
         self.np = np

src/neo4j_graphrag/embeddings/vertexai.py

@@ -36,8 +36,8 @@ class VertexAIEmbeddings(Embedder):
     def __init__(self, model: str = "text-embedding-004") -> None:
         if vertexai is None:
             raise ImportError(
-                "Could not import Vertex AI Python client. "
-                'Please install it with `pip install "neo4j-graphrag[google]"`.'
+                """Could not import Vertex AI Python client.
+                Please install it with `pip install "neo4j-graphrag[google]"`."""
             )
         self.vertexai_model = (
             vertexai.language_models.TextEmbeddingModel.from_pretrained(model)

src/neo4j_graphrag/llm/anthropic_llm.py

@@ -55,8 +55,8 @@ def __init__(
             import anthropic
         except ImportError:
             raise ImportError(
-                "Could not import Anthropic Python client. "
-                'Please install it with `pip install "neo4j-graphrag[anthropic]"`.'
+                """Could not import Anthropic Python client.
+                Please install it with `pip install "neo4j-graphrag[anthropic]"`."""
             )
         super().__init__(model_name, model_params)
         self.anthropic = anthropic

src/neo4j_graphrag/llm/cohere_llm.py

@@ -53,8 +53,8 @@ def __init__(
             import cohere
         except ImportError:
             raise ImportError(
-                "Could not import cohere python client. "
-                'Please install it with `pip install "neo4j-graphrag[cohere]"`.'
+                """Could not import cohere python client.
+                Please install it with `pip install "neo4j-graphrag[cohere]"`."""
             )
 
         self.cohere = cohere

src/neo4j_graphrag/llm/mistralai_llm.py

@@ -53,8 +53,8 @@ def __init__(
         """
         if Mistral is None:
             raise ImportError(
-                "Could not import Mistral Python client. "
-                'Please install it with `pip install "neo4j-graphrag[mistralai]"`.'
+                """Could not import Mistral Python client.
+                Please install it with `pip install "neo4j-graphrag[mistralai]"`."""
             )
         super().__init__(model_name, model_params)
         api_key = kwargs.pop("api_key", None)

src/neo4j_graphrag/llm/openai_llm.py

@@ -50,8 +50,8 @@ def __init__(
             import openai
         except ImportError:
             raise ImportError(
-                "Could not import openai Python client. "
-                'Please install it with `pip install "neo4j-graphrag[openai]"`.'
+                """Could not import openai Python client.
+                Please install it with `pip install "neo4j-graphrag[openai]"`."""
             )
         self.openai = openai
         super().__init__(model_name, model_params)

src/neo4j_graphrag/llm/vertexai_llm.py

@@ -59,8 +59,8 @@ def __init__(
     ):
         if GenerativeModel is None or ResponseValidationError is None:
             raise ImportError(
-                "Could not import Vertex AI Python client. "
-                'Please install it with `pip install "neo4j-graphrag[google]"`.'
+                """Could not import Vertex AI Python client.
+                Please install it with `pip install "neo4j-graphrag[google]"`."""
             )
         super().__init__(model_name, model_params)
         self.model = GenerativeModel(model_name=model_name, **kwargs)