Convert create_datadir to Pathlib

freqtrade/configuration/create_datadir.py

@@ -1,18 +1,20 @@
 import logging
-import os
 from typing import Any, Dict, Optional
+from pathlib import Path
 
 
 logger = logging.getLogger(__name__)
 
 
 def create_datadir(config: Dict[str, Any], datadir: Optional[str] = None) -> str:
+
+    folder = Path(datadir) if datadir else Path('user_data/data')
     if not datadir:
         # set datadir
         exchange_name = config.get('exchange', {}).get('name').lower()
-        datadir = os.path.join('user_data', 'data', exchange_name)
+        folder = folder.joinpath(exchange_name)
 
-    if not os.path.isdir(datadir):
-        os.makedirs(datadir)
+    if not folder.is_dir():
+        folder.mkdir(parents=True)
         logger.info(f'Created data directory: {datadir}')
-    return datadir
+    return str(folder)