updateds folder path and regex

app/utils/file_utils.py

@@ -1,6 +1,16 @@
 import os
+from flask import current_app
 from app.config import Config
 
+
+def get_download_format_folder():
+    return os.path.join(
+        current_app.root_path,
+        "static",
+        "downloads",
+        "format"
+    )
+
 def ensure_upload_folder():
     if not os.path.exists(Config.UPLOAD_FOLDER):
-        os.makedirs(Config.UPLOAD_FOLDER)
+        os.makedirs(Config.UPLOAD_FOLDER)

app/utils/regex_utils.py

@@ -9,4 +9,4 @@ class RegularExpression:
     PIPE_MM_PATTERN = re.compile(r"^pipe_\d+_mm$")
 
     # sum fields of MH dc (d_0_to_0_75)
-    D_RANGE_PATTERN = re.compile( r"^d_\d+(?:_\d+)?_to_\d+(?:_\d+)?$")
+    D_RANGE_PATTERN = re.compile( r"^d_\d+(?:_\d+)?_to_\d+(?:_\d+)?$")