Replace toml by tomllib and tomli_w

setup.py

@@ -193,7 +193,8 @@ def run(self):
         'pillow>=8.3.2',
         'pygobject>=3.40.1',
         'sqlalchemy>=1.4.36,<2',
-        'toml>=0.10.2',
+        'tomli_w>=1.0.0',
+        'toml==0.10.2; python_version<"3.11"',
         'recipe-scrapers>=14.27.0,<15',
     ],
     extras_require={

src/gourmand/prefs.py

@@ -1,8 +1,14 @@
 import shutil
 from pathlib import Path
+from sys import version_info
 from typing import Any, Optional
 
-import toml
+if version_info >= (3, 11):
+    from tomllib import loads as toml_loads
+else:
+    from tomli import loads as toml_loads
+
+from tomli_w import dumps as toml_dumps
 
 from gourmand.gglobals import gourmanddir
 
@@ -32,12 +38,12 @@ def get(self, key: str, default: Optional[Any] = None) -> Optional[Any]:
     def save(self):
         self.filename.parent.mkdir(exist_ok=True)
         with open(self.filename, 'w') as fout:
-            toml.dump(self, fout)
+            fout.write(toml_dumps(self))
 
     def load(self) -> bool:
         if self.filename.is_file():
             with open(self.filename) as fin:
-                for k, v in toml.load(fin).items():
+                for k, v in toml_loads(fin.read()).items():
                     self.__setitem__(k, v)
             return True
         return False
@@ -54,7 +60,7 @@ def update_preferences_file_format(target_dir: Path = gourmanddir):
         return
 
     with open(filename) as fin:
-        prefs = toml.load(fin)
+        prefs = toml_loads(fin.read())
 
     # Gourmand 1.2.0: several sorting parameters can be saved.
     # The old format had `column=name` and `ascending=bool`, which are now `name=bool`
@@ -64,7 +70,7 @@ def update_preferences_file_format(target_dir: Path = gourmanddir):
             prefs['sort_by'] = {sort_by['column']: sort_by['ascending']}
 
     with open(filename, 'w') as fout:
-        toml.dump(prefs, fout)
+        fout.write(toml_dumps(prefs))
 
 
 def copy_old_installation_or_initialize(target_dir: Path):

tests/test_prefs.py

@@ -1,12 +1,17 @@
+from sys import version_info
+
 import pytest
-import toml
+
+if version_info >= (3, 11):
+    from tomllib import loads as toml_loads
+else:
+    from tomli import loads as toml_loads
 
 from pathlib import Path
 
-from gourmand.prefs import (
-    Prefs,
-    update_preferences_file_format
-)
+from tomli_w import dumps as toml_dumps
+
+from gourmand.prefs import Prefs, update_preferences_file_format
 
 
 def test_singleton():
@@ -37,22 +42,22 @@ def test_update_preferences_file_format(tmpdir):
     filename = tmpdir.join('preferences.toml')
 
     with open(filename, 'w') as fout:
-        toml.dump({'sort_by': {'column': 'title', 'ascending': True}}, fout)
+        fout.write(toml_dumps({'sort_by': {'column': 'title', 'ascending': True}}))
 
     update_preferences_file_format(Path(tmpdir))
 
     with open(filename) as fin:
-        d = toml.load(fin)
+        d = toml_loads(fin.read())
 
     assert 'category' not in d['sort_by'].keys()
     assert d['sort_by']['title'] == True
 
     with open(filename, 'w') as fout:
-        toml.dump({}, fout)
+        fout.write(toml_dumps({}))
 
     update_preferences_file_format(Path(tmpdir))
 
     with open(filename) as fin:
-        d = toml.load(fin)
+        d = toml_loads(fin.read())
 
     assert d == {}