Use python config library.

scripts/division_io.py

@@ -8,6 +8,7 @@
 """
 
 import re
+import sys
 from enum import Enum
 from pathlib import Path
 from typing import cast
@@ -19,6 +20,12 @@
 from rich import print
 from rich.prompt import Prompt
 
+repository_path = Path(__file__).parent.parent
+sys.path.append(str(repository_path / "commonlib" / "pylib"))
+
+from mysociety import config
+config.set_file(repository_path / "conf" / "general")
+
 # suppress warnings about using mysqldb in pandas
 filterwarnings(
     "ignore",
@@ -48,24 +55,7 @@ def cli():
     pass
 
 
-def fast_config(config_path: Path) -> dict[str, str]:
-    """
-    There's a more comprehensive config parser in commonlib/pylib/mysociety/config.py
-    But this is all we need for this function.
-    """
-    pattern = r"define\s*\(\s*['\"](.*?)['\"]\s*,\s*['\"]?(.*?)['\"]?\s*\);"
-
-    config_path = Path(__file__).parent.parent / config_path
-    with config_path.open("r") as f:
-        content = f.read()
-
-    return {key: value for key, value in re.findall(pattern, content)}
-
-
 def get_twfy_db_connection() -> MySQLdb.Connection:
-    config_path = Path("conf", "general")
-    config = fast_config(config_path)
-
     db_connection = cast(
         MySQLdb.Connection,
         MySQLdb.connect(
@@ -229,7 +219,6 @@ def export_division_data(verbose: bool = False):
     """
     Export division data to publically accessible parquet files
     """
-    config = fast_config(Path("conf", "general"))
     raw_data_dir = Path(config["RAWDATA"])
     dest_path = raw_data_dir / "votes"
     dest_path.mkdir(parents=True, exist_ok=True)