Remove aliases for codecs we don't have

Author: msimacek

graalpython/com.oracle.graal.python.test/src/tests/test_codecs.py

@@ -1,4 +1,4 @@
-# Copyright (c) 2019, 2024, Oracle and/or its affiliates.
+# Copyright (c) 2019, 2025, Oracle and/or its affiliates.
 # Copyright (C) 1996-2017 Python Software Foundation
 #
 # Licensed under the PYTHON SOFTWARE FOUNDATION LICENSE VERSION 2
@@ -28,6 +28,16 @@ def test_import():
         imported = False
     assert imported
 
+def test_no_aliases_to_missing_codecs():
+    from encodings.aliases import aliases
+
+    # This is how charset-normalizer discovers all encodings, we need to make sure they are importable
+    for a in set(aliases.values()) - {"rot_13", "tactis", "mbcs"}:
+        try:
+            exec(f"import encodings.{a}")
+        except Exception:
+            raise AssertionError(f"Cannot import encodings.{a}, it should be fixed or removed from encodings.aliases")
+
 
 def test_decode():
     import codecs

graalpython/lib-python/3/encodings/aliases.py

@@ -220,12 +220,14 @@
     'ms950'              : 'cp950',
 
     # euc_jis_2004 codec
-    'jisx0213'           : 'euc_jis_2004',
-    'eucjis2004'         : 'euc_jis_2004',
-    'euc_jis2004'        : 'euc_jis_2004',
+    # GraalPy change: Java doesn't have this codec
+    # 'jisx0213'           : 'euc_jis_2004',
+    # 'eucjis2004'         : 'euc_jis_2004',
+    # 'euc_jis2004'        : 'euc_jis_2004',
 
     # euc_jisx0213 codec
-    'eucjisx0213'        : 'euc_jisx0213',
+    # GraalPy change: Java doesn't have this codec
+    # 'eucjisx0213'        : 'euc_jisx0213',
 
     # euc_jp codec
     'eucjp'              : 'euc_jp',
@@ -280,24 +282,28 @@
     'iso_2022_jp'        : 'iso2022_jp',
 
     # iso2022_jp_1 codec
-    'iso2022jp_1'        : 'iso2022_jp_1',
-    'iso_2022_jp_1'      : 'iso2022_jp_1',
+    # GraalPy change: Java doesn't have this codec
+    # 'iso2022jp_1'        : 'iso2022_jp_1',
+    # 'iso_2022_jp_1'      : 'iso2022_jp_1',
 
     # iso2022_jp_2 codec
     'iso2022jp_2'        : 'iso2022_jp_2',
     'iso_2022_jp_2'      : 'iso2022_jp_2',
 
     # iso2022_jp_2004 codec
-    'iso_2022_jp_2004'   : 'iso2022_jp_2004',
-    'iso2022jp_2004'     : 'iso2022_jp_2004',
+    # GraalPy change: Java doesn't have this codec
+    # 'iso_2022_jp_2004'   : 'iso2022_jp_2004',
+    # 'iso2022jp_2004'     : 'iso2022_jp_2004',
 
     # iso2022_jp_3 codec
-    'iso2022jp_3'        : 'iso2022_jp_3',
-    'iso_2022_jp_3'      : 'iso2022_jp_3',
+    # GraalPy change: Java doesn't have this codec
+    # 'iso2022jp_3'        : 'iso2022_jp_3',
+    # 'iso_2022_jp_3'      : 'iso2022_jp_3',
 
     # iso2022_jp_ext codec
-    'iso2022jp_ext'      : 'iso2022_jp_ext',
-    'iso_2022_jp_ext'    : 'iso2022_jp_ext',
+    # GraalPy change: Java doesn't have this codec
+    # 'iso2022jp_ext'      : 'iso2022_jp_ext',
+    # 'iso_2022_jp_ext'    : 'iso2022_jp_ext',
 
     # iso2022_kr codec
     'csiso2022kr'        : 'iso2022_kr',
@@ -485,9 +491,10 @@
     's_jis'              : 'shift_jis',
 
     # shift_jis_2004 codec
-    'shiftjis2004'       : 'shift_jis_2004',
-    'sjis_2004'          : 'shift_jis_2004',
-    's_jis_2004'         : 'shift_jis_2004',
+    # GraalPy change: Java doesn't have this codec
+    # 'shiftjis2004'       : 'shift_jis_2004',
+    # 'sjis_2004'          : 'shift_jis_2004',
+    # 's_jis_2004'         : 'shift_jis_2004',
 
     # shift_jisx0213 codec
     'shiftjisx0213'      : 'shift_jisx0213',