cachew: switch to using appdirs/user cache directory instead of /tmp

README.ipynb

@@ -430,7 +430,7 @@
     "{flink('cachew.settings')} exposes some parameters that allow you to control `cachew` behaviour:\n",
     "- `ENABLE`: set to `False` if you want to disable caching for without removing the decorators (useful for testing and debugging).\n",
     "   You can also use {flink('cachew.extra.disabled_cachew')} context manager to do it temporarily.\n",
-    "- `DEFAULT_CACHEW_DIR`: override to set a different base directory.\n",
+    "- `DEFAULT_CACHEW_DIR`: override to set a different base directory. The default is the \"user cache directory\" (see [appdirs docs](https://github.com/ActiveState/appdirs#some-example-output)).\n",
     "- `THROW_ON_ERROR`: by default, cachew is defensive and simply attemps to cause the original function on caching issues.\n",
     "   Set to `True` to catch errors earlier.\n",
     "\n",
@@ -463,10 +463,10 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.8.2"
+   "version": "3.8.5"
   },
   "name": "README.ipynb"
  },
  "nbformat": 4,
- "nbformat_minor": 2
+ "nbformat_minor": 4
 }

setup.py

@@ -7,7 +7,8 @@
 description = 'Easy sqlite-backed persistent cache for dataclasses'
 
 install_requires = [
-    'sqlalchemy',
+    'appdirs'   ,  # default cache dir
+    'sqlalchemy',  # cache DB interaction
 ]
 
 

src/cachew/__init__.py

@@ -32,7 +32,9 @@
 import warnings
 
 
-import sqlalchemy # type: ignore
+import appdirs  # type: ignore[import]
+
+import sqlalchemy  # type: ignore[import]
 from sqlalchemy import Column, Table, event
 
 
@@ -65,8 +67,7 @@ class settings:
     '''
     ENABLE: bool = True
 
-    # switch to appdirs and using user cache dir?
-    DEFAULT_CACHEW_DIR: PathIsh = Path(tempfile.gettempdir()) / 'cachew'
+    DEFAULT_CACHEW_DIR: PathIsh = Path(appdirs.user_cache_dir('cachew'))
 
     '''
     Set to true if you want to fail early. Otherwise falls back to non-cached version