Update app.py

app.py

@@ -4,20 +4,29 @@ from langchain.text_splitter import (
     RecursiveCharacterTextSplitter,
 )
 
+LABEL_TEXTSPLITTER = "LangChain's CharacterTextSplitter"
+LABEL_RECURSIVE = "Langchain's RecursiveCharacterTextSplitter"
+
 def extract_separators_from_string(separator_str):
     try:
         separators = separators_str[1:-1].split(", ")
         return [separator.replace('"', "").replace("'", "") for separator in separators]
-    except:
+    except Exception as e:
+        print(e)
         raise gr.Error(f"""
         Did not succeed in extracting seperators from string: {separator_str}.
         Please type it in the correct format: "['separator_1', 'separator_2', etc]"
         """)
+
+def change_split_selection(text, slider_count, split_selection, separator_selection):
+    separator_selection.update(interactive=(split_selection==LABEL_RECURSIVE))
+    return chunk(text, slider_count, split_selection, separator_selection)
+    
         
 def chunk(text, length, splitter_selection, separators_str):
     separators = extract_separators_from_string(separators_str)
     
-    if splitter_selection == "LangChain's CharacterTextSplitter":
+    if splitter_selection == LABEL_TEXTSPLITTER:
         text_splitter = CharacterTextSplitter(
             separator="",
             chunk_size=length,
@@ -27,7 +36,7 @@ def chunk(text, length, splitter_selection, separators_str):
         )
         splits = text_splitter.create_documents([text])
         text_splits = [split.page_content for split in splits]
-    elif splitter_selection == "Langchain's RecursiveCharacterTextSplitter":
+    elif splitter_selection == LABEL_RECURSIVE:
         text_splitter = RecursiveCharacterTextSplitter(
             chunk_size=length,
             chunk_overlap=0,
@@ -71,12 +80,11 @@ with gr.Blocks(theme=gr.themes.Soft()) as demo:
     with gr.Row():
         split_selection = gr.Dropdown(
             choices=[
-                "LangChain's CharacterTextSplitter",
-                "Langchain's RecursiveCharacterTextSplitter",
+                LABEL_TEXTSPLITTER,
+                LABEL_RECURSIVE,
             ],
-            value="LangChain's CharacterTextSplitter",
+            value=LABEL_TEXTSPLITTER,
             label="Chunking method ",
-            info="How should we split our chunks?",
         )
         separator_selection = gr.Textbox(
             value=["\n\n", "\n", ".", " ", ""],