revert support of TextIOWrapper

Author: DanielYang59

src/pymatgen/io/cif.py

@@ -10,7 +10,7 @@
 from collections import defaultdict, deque
 from functools import partial
 from inspect import getfullargspec
-from io import StringIO
+from io import StringIO, TextIOWrapper
 from itertools import groupby
 from pathlib import Path
 from typing import TYPE_CHECKING, Literal, cast
@@ -344,6 +344,13 @@ def __init__(
         if isinstance(filename, (str | Path)):
             with zopen(filename, mode="rt", encoding="utf-8", errors="replace") as f:
                 cif_string: str = cast("str", f.read())
+        elif isinstance(filename, TextIOWrapper):
+            warnings.warn(
+                "Initializing CifParser from TextIOWrapper is deprecated, use str or Path instead.",
+                DeprecationWarning,
+                stacklevel=2,
+            )
+            cif_string = filename.read()
         elif isinstance(filename, StringIO):
             warnings.warn(
                 "Initializing CifParser from StringIO is deprecated, use `from_str()` instead.",

tests/io/test_cif.py

@@ -170,15 +170,15 @@ def test_cif_parser(self):
         for struct in parser.parse_structures():
             assert struct.formula == "V4 O6"
 
-        # Test init from StringIO
-        with open(f"{TEST_FILES_DIR}/cif/V2O3.cif", encoding="utf-8") as f:
-            cif_text = f.read()
-
-        with pytest.warns(DeprecationWarning, match="Initializing CifParser from StringIO"):
-            parser = CifParser(StringIO(cif_text))
-
+        # Test init from TextIOWrapper
+        with (
+            pytest.warns(DeprecationWarning, match="Initializing CifParser from TextIOWrapper"),
+            open(f"{TEST_FILES_DIR}/cif/V2O3.cif") as file,
+        ):
+            parser = CifParser(file)
         for struct in parser.parse_structures():
             assert struct.formula == "V4 O6"
+
         bibtex_str = """
 @article{cifref0,
     author = "Andersson, G.",