[python] Update the Python version to 3.12.8 and fix syntax errors

Author: kyolee415

examples/gemini/python/docs-agent/docs_agent/interfaces/cli/cli_helpme.py

@@ -750,7 +750,7 @@ def helpme(
                     terminal_output += line
                     # if an Enter key is detected, remove all saved lines.
                     # This allows to read the output of the last commandline only.
-                    if re.search("^\[\?2004", line):
+                    if re.search("^\\[\\?2004", line):
                         terminal_output = ""
         except:
             terminal_output = "No console output is provided."

examples/gemini/python/docs-agent/docs_agent/memory/logging.py

@@ -33,7 +33,7 @@ def log_question_to_file(user_question: str, response: str, probability: str = "
         .replace("'", "")
         .replace("`", "")
     )
-    filename = re.sub("[^a-zA-Z0-9\-]", "", filename)
+    filename = re.sub("[^a-zA-Z0-9\\-]", "", filename)
     if len(filename) > 64:
         filename = filename[:64]
     log_dir = "./logs/responses"
@@ -84,7 +84,7 @@ def log_debug_info_to_file(
         .replace("'", "")
         .replace("`", "")
     )
-    question_formatted = re.sub("[^a-zA-Z0-9\-]", "", question_formatted)
+    question_formatted = re.sub("[^a-zA-Z0-9\\-]", "", question_formatted)
     if len(question_formatted) > 32:
         question_formatted = question_formatted[:32]
     filename = date_formatted + "-" + question_formatted + "-" + str(uid) + ".txt"

examples/gemini/python/docs-agent/docs_agent/preprocess/splitters/markdown_splitter.py

@@ -362,13 +362,13 @@ def build_parent_tree(
 def clean_section_id(section_id: str) -> str:
     section_id = re.sub("'", "", section_id)
     section_id = re.sub("`", "", section_id)
-    section_id = re.sub("\.", "", section_id)
-    section_id = re.sub("\,", "", section_id)
+    section_id = re.sub(r"\.", "", section_id)
+    section_id = re.sub(",", "", section_id)
     section_id = re.sub("#", "", section_id)
-    section_id = re.sub("\?", "", section_id)
-    section_id = re.sub("\/", "", section_id)
-    section_id = re.sub("\{", "", section_id)
-    section_id = re.sub("\}", "", section_id)
+    section_id = re.sub(r"\?", "", section_id)
+    section_id = re.sub(r"\/", "", section_id)
+    section_id = re.sub(r"\{", "", section_id)
+    section_id = re.sub(r"\}", "", section_id)
     section_id = re.sub(":", "", section_id)
     return section_id