Import RELEASE_* directly from respective files

Add a TODO about removing imports from `const/__init__.py`

picard/const/__init__.py

@@ -120,6 +120,8 @@ for k, v in MB_ATTRIBUTES.items():
     elif k.startswith('DB:release_status/name:'):
         RELEASE_STATUS[v] = v
 
+# TODO: remove those 4 imports before 3.0 release
+
 # Release countries
 from picard.const.countries import (  # noqa: F401,E402 # pylint: disable=unused-import
     RELEASE_COUNTRIES,

picard/ui/edittagdialog.py

@@ -33,12 +33,12 @@ from PyQt5 import (
 )
 
 from picard.const import (
-    RELEASE_COUNTRIES,
     RELEASE_FORMATS,
     RELEASE_PRIMARY_GROUPS,
     RELEASE_SECONDARY_GROUPS,
     RELEASE_STATUS,
 )
+from picard.const.countries import RELEASE_COUNTRIES
 from picard.util.tags import TAG_NAMES
 
 from picard.ui import PicardDialog

picard/ui/options/interface.py

@@ -42,7 +42,7 @@ from picard.config import (
     TextOption,
     get_config,
 )
-from picard.const import UI_LANGUAGES
+from picard.const.languages import UI_LANGUAGES
 from picard.const.sys import IS_MACOS
 from picard.util import strxfrm
 

picard/ui/options/metadata.py

@@ -38,11 +38,11 @@ from picard.config import (
     TextOption,
     get_config,
 )
-from picard.const import (
-    ALIAS_LOCALES,
+from picard.const.locales import ALIAS_LOCALES
+from picard.const.scripts import (
     SCRIPTS,
+    scripts_sorted_by_localized_name,
 )
-from picard.const.scripts import scripts_sorted_by_localized_name
 
 from picard.ui import PicardDialog
 from picard.ui.moveable_list_view import MoveableListView

picard/ui/options/releases.py

@@ -37,11 +37,11 @@ from picard.config import (
     get_config,
 )
 from picard.const import (
-    RELEASE_COUNTRIES,
     RELEASE_FORMATS,
     RELEASE_PRIMARY_GROUPS,
     RELEASE_SECONDARY_GROUPS,
 )
+from picard.const.countries import RELEASE_COUNTRIES
 from picard.const.sys import IS_WIN
 from picard.util import strxfrm