feat: compatible with python 3.9 and 3.12

README.md

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 # Semantic Router
+
 <p>
 <img alt="PyPI - Python Version" src="https://img.shields.io/pypi/pyversions/semantic-router?logo=python&logoColor=gold" />
 <img alt="GitHub Contributors" src="https://img.shields.io/github/contributors/aurelio-labs/semantic-router" />
@@ -22,7 +23,7 @@ To get started with _semantic-router_ we install it like so:
 pip install -qU semantic-router
 ```
 
-❗️ _If wanting to use local embeddings you can use `FastEmbedEncoder` (`pip install -qU semantic-router[fastembed]`). To use the `HybridRouteLayer` you must `pip install -qU semantic-router[hybrid]`._
+❗️ _If wanting to use local embeddings you can use `FastEmbedEncoder` (`pip install -qU "semantic-router[fastembed]`"). To use the `HybridRouteLayer` you must `pip install -qU "semantic-router[hybrid]"`._
 
 We begin by defining a set of `Route` objects. These are the decision paths that the semantic router can decide to use, let's try two simple routes for now — one for talk on _politics_ and another for _chitchat_:
 
@@ -114,10 +115,3 @@ rl("I'm interested in learning about llama 2").name
 In this case, no decision could be made as we had no matches — so our route layer returned `None`!
 
 ## 📚 [Resources](https://github.com/aurelio-labs/semantic-router/tree/main/docs)
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pyproject.toml

@@ -14,7 +14,7 @@ readme = "README.md"
 packages = [{include = "semantic_router"}]
 
 [tool.poetry.dependencies]
-python = ">=3.10,<3.12"
+python = "^3.9"
 pydantic = "^1.8.2"
 openai = "^1.3.9"
 cohere = "^4.32"

semantic_router/encoders/bm25.py

@@ -16,7 +16,7 @@ class BM25Encoder(BaseEncoder):
         except ImportError:
             raise ImportError(
                 "Please install pinecone-text to use BM25Encoder. "
-                "You can install it with: `pip install semantic-router[hybrid]`"
+                "You can install it with: `pip install 'semantic-router[hybrid]'`"
             )
         logger.info("Downloading and initializing BM25 model parameters.")
         self.model = encoder.default()

semantic_router/encoders/fastembed.py

@@ -27,7 +27,7 @@ class FastEmbedEncoder(BaseEncoder):
             raise ImportError(
                 "Please install fastembed to use FastEmbedEncoder. "
                 "You can install it with: "
-                "`pip install semantic-router[fastembed]`"
+                "`pip install 'semantic-router[fastembed]'`"
             )
 
         embedding_args = {