Update app.py

app.py

@@ -5,7 +5,7 @@ import tempfile
 import ollama
 import streamlit as st
 import chromadb
-from langchain_text_splitters import SpacyTextSplitter
+from langchain_text_splitters import RecursiveCharacterTextSplitter
 
 # Constants and global variables
 GITHUB_OWNER = "sys-bio"
@@ -103,21 +103,13 @@ def convert_sbml_to_antimony(sbml_file_path, antimony_file_path):
         print(f"Error converting SBML to Antimony: {e}")
 
 def split_biomodels(antimony_file_path):
-    import subprocess
     
-    # Try to load the spaCy model; if it fails, download it
-    def ensure_spacy_model():
-        try:
-            nlp = spacy.load("en_core_web_sm")
-        except OSError:
-            # If the model is not available, download it
-            subprocess.run(["python", "-m", "spacy", "download", "en_core_web_sm"])
-            nlp = spacy.load("en_core_web_sm")
-        return nlp
-
-    # Ensure the spaCy model is installed
-    nlp = ensure_spacy_model()
-    text_splitter = SpacyTextSplitter(chunk_size=1000)
+    text_splitter = RecursiveCharacterTextSplitter(
+        chunk_size=1000, 
+        chunk_overlap=20, 
+        length_function=len, 
+        is_separator_regex=False,
+    )
     
     final_items = []
     directory_path = os.path.dirname(os.path.abspath(antimony_file_path))