chore: apply ruff's pyupgrade linter rules to modernize Python code with targeted version (#2419)

api/core/data_loader/loader/markdown.py

@@ -1,6 +1,6 @@
 import logging
 import re
-from typing import List, Optional, Tuple, cast
+from typing import Optional, cast
 
 from langchain.document_loaders.base import BaseLoader
 from langchain.document_loaders.helpers import detect_file_encodings
@@ -42,7 +42,7 @@ class MarkdownLoader(BaseLoader):
         self._encoding = encoding
         self._autodetect_encoding = autodetect_encoding
 
-    def load(self) -> List[Document]:
+    def load(self) -> list[Document]:
         tups = self.parse_tups(self._file_path)
         documents = []
         for header, value in tups:
@@ -54,13 +54,13 @@ class MarkdownLoader(BaseLoader):
 
         return documents
 
-    def markdown_to_tups(self, markdown_text: str) -> List[Tuple[Optional[str], str]]:
+    def markdown_to_tups(self, markdown_text: str) -> list[tuple[Optional[str], str]]:
         """Convert a markdown file to a dictionary.
 
         The keys are the headers and the values are the text under each header.
 
         """
-        markdown_tups: List[Tuple[Optional[str], str]] = []
+        markdown_tups: list[tuple[Optional[str], str]] = []
         lines = markdown_text.split("\n")
 
         current_header = None
@@ -103,11 +103,11 @@ class MarkdownLoader(BaseLoader):
         content = re.sub(pattern, r"\1", content)
         return content
 
-    def parse_tups(self, filepath: str) -> List[Tuple[Optional[str], str]]:
+    def parse_tups(self, filepath: str) -> list[tuple[Optional[str], str]]:
         """Parse file into tuples."""
         content = ""
         try:
-            with open(filepath, "r", encoding=self._encoding) as f:
+            with open(filepath, encoding=self._encoding) as f:
                 content = f.read()
         except UnicodeDecodeError as e:
             if self._autodetect_encoding: