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from pathlib import Path
from asgiref.local import Local
from django.apps import apps
from django.utils.autoreload import is_django_module
def watch_for_translation_changes(sender, **kwargs):
"""Register file watchers for .mo files in potential locale paths."""
from django.conf import settings
if settings.USE_I18N:
directories = [Path("locale")]
directories.extend(
Path(config.path) / "locale"
for config in apps.get_app_configs()
if not is_django_module(config.module)
)
directories.extend(Path(p) for p in settings.LOCALE_PATHS)
for path in directories:
sender.watch_dir(path, "**/*.mo")
def translation_file_changed(sender, file_path, **kwargs):
"""Clear the internal translations cache if a .mo file is modified."""
if file_path.suffix == ".mo":
import gettext
from django.utils.translation import trans_real
gettext._translations = {}
trans_real._translations = {}
trans_real._default = None
trans_real._active = Local()
return True
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