Auto self-translation

compile_locales.py

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+#!/usr/bin/env python
+import sys
+import os
+from babel.messages.frontend import main as pybabel
+
+if __name__ == "__main__":
+    locales_dir = os.path.join("libretranslate", "locales")
+    if not os.path.isdir(locales_dir):
+        os.makedirs(locales_dir)
+
+    print("Compiling locales")
+    sys.argv = ["", "compile", "-d", locales_dir]
+    pybabel()
+
+
+