fix event loop conflict

lightrag/utils.py

@@ -9,7 +9,7 @@ import re
 from dataclasses import dataclass
 from functools import wraps
 from hashlib import md5
-from typing import Any, Union,List
+from typing import Any, Union, List
 import xml.etree.ElementTree as ET
 
 import numpy as np
@@ -176,19 +176,20 @@ def truncate_list_by_token_size(list_data: list, key: callable, max_token_size:
             return list_data[:i]
     return list_data
 
+
 def list_of_list_to_csv(data: List[List[str]]) -> str:
     output = io.StringIO()
     writer = csv.writer(output)
     writer.writerows(data)
     return output.getvalue()
+
+
 def csv_string_to_list(csv_string: str) -> List[List[str]]:
     output = io.StringIO(csv_string)
     reader = csv.reader(output)
     return [row for row in reader]
 
 
-
-
 def save_data_to_file(data, file_name):
     with open(file_name, "w", encoding="utf-8") as f:
         json.dump(data, f, ensure_ascii=False, indent=4)
@@ -253,13 +254,14 @@ def xml_to_json(xml_file):
         print(f"An error occurred: {e}")
         return None
 
+
 def process_combine_contexts(hl, ll):
     header = None
     list_hl = csv_string_to_list(hl.strip())
     list_ll = csv_string_to_list(ll.strip())
 
     if list_hl:
-        header=list_hl[0]
+        header = list_hl[0]
         list_hl = list_hl[1:]
     if list_ll:
         header = list_ll[0]
@@ -268,19 +270,17 @@ def process_combine_contexts(hl, ll):
         return ""
 
     if list_hl:
-        list_hl = [','.join(item[1:]) for item in list_hl if item]
+        list_hl = [",".join(item[1:]) for item in list_hl if item]
     if list_ll:
-        list_ll = [','.join(item[1:]) for item in list_ll if item]
+        list_ll = [",".join(item[1:]) for item in list_ll if item]
 
-    combined_sources_set = set(
-        filter(None, list_hl + list_ll)
-    )
+    combined_sources_set = set(filter(None, list_hl + list_ll))
 
     combined_sources = [",\t".join(header)]
 
     for i, item in enumerate(combined_sources_set, start=1):
         combined_sources.append(f"{i},\t{item}")
-        
+
     combined_sources = "\n".join(combined_sources)
 
     return combined_sources