use user cache dir

Author: paretje

mumble/mumble.py

@@ -9,6 +9,7 @@
 
 import pandas as pd
 import pickle
+import platformdirs
 from psm_utils.io import read_file, write_file
 from psm_utils import PSMList, PSM, Peptidoform
 from psm_utils.utils import mz_to_mass
@@ -781,9 +782,7 @@ def _get_cache_file_path(self):
         return:
             str: path to cache file
         """
-        current_dir = os.path.dirname(os.path.realpath(__file__))
-        parent_dir = os.path.dirname(current_dir)
-        cache_dir = os.path.join(parent_dir, "modification_cache")
+        cache_dir = platformdirs.user_cache_dir(appname="mumble")
 
         # Create the cache directory if it doesn't exist
         os.makedirs(cache_dir, exist_ok=True)

pyproject.toml

@@ -27,7 +27,8 @@ dependencies = [
     "pandas >= 1.5.0",
     "psm_utils >= 0.9.0",
     "numpy >= 1.23.0",
-    "rustyms >= 0.8.0"
+    "rustyms >= 0.8.0",
+    "platformdirs >= 3.0.0",
 ]
 requires-python = ">=3.10"