Use the translations for language names from the iso-codes project

setup/iso_codes.py

@@ -1,10 +1,14 @@
 #!/usr/bin/env python
 # License: GPLv3 Copyright: 2023, Kovid Goyal <kovid at kovidgoyal.net>
 
-from setup import download_securely
+import fnmatch
+import os
+import shutil, time
 import zipfile
 from io import BytesIO
 
+from setup import download_securely
+
 
 class ISOData:
     URL = 'https://salsa.debian.org/iso-codes-team/iso-codes/-/archive/main/iso-codes-main.zip'
@@ -23,5 +27,16 @@ class ISOData:
             with zf.open(f'iso-codes-main/data/{name}') as f:
                 return f.read()
 
+    def extract_po_files(self, name: str, output_dir: str) -> None:
+        name = name.split('.', 1)[0]
+        pat = f'iso-codes-main/{name}/*.po'
+        with zipfile.ZipFile(self.zip_data) as zf:
+            for name in fnmatch.filter(zf.namelist(), pat):
+                dest = os.path.join(output_dir, name.split('/')[-1])
+                zi = zf.getinfo(name)
+                with zf.open(zi) as src, open(dest, 'wb') as d:
+                    shutil.copyfileobj(src, d)
+                date_time = time.mktime(zi.date_time + (0, 0, -1))
+                os.utime(dest, (date_time, date_time))
 
 iso_data = ISOData()