Ruff fix

src/express/expressor_model/tokenizer.py

@@ -3,17 +3,20 @@ from typing import List, Optional, Set
 
 try:
     import jieba
+
     _HAS_JIEBA = True
 except Exception:
     _HAS_JIEBA = False
 
 _WORD_RE = re.compile(r"[A-Za-z0-9_]+")
 # 匹配纯符号的正则表达式
-_SYMBOL_RE = re.compile(r'^[^\w\u4e00-\u9fff]+$')
+_SYMBOL_RE = re.compile(r"^[^\w\u4e00-\u9fff]+$")
+
 
 def simple_en_tokenize(text: str) -> List[str]:
     return _WORD_RE.findall(text.lower())
 
+
 class Tokenizer:
     def __init__(self, stopwords: Optional[Set[str]] = None, use_jieba: bool = True):
         self.stopwords = stopwords or set()
@@ -28,4 +31,4 @@ class Tokenizer:
         else:
             toks = simple_en_tokenize(text)
         # 过滤掉纯符号和停用词
-        return [t for t in toks if t not in self.stopwords and not _SYMBOL_RE.match(t)]
+        return [t for t in toks if t not in self.stopwords and not _SYMBOL_RE.match(t)]