Use locale.getencoding for newer Python versions

src/poetry/masonry/builders/editable.py

@@ -3,7 +3,6 @@
 import csv
 import hashlib
 import json
-import locale
 import os
 
 from base64 import urlsafe_b64encode
@@ -16,6 +15,7 @@
 
 from poetry.utils._compat import WINDOWS
 from poetry.utils._compat import decode
+from poetry.utils._compat import getencoding
 from poetry.utils.env import build_environment
 from poetry.utils.helpers import is_dir_writable
 from poetry.utils.pip import pip_install
@@ -127,7 +127,7 @@ def _add_pth(self) -> list[Path]:
 
         try:
             pth_file = self._env.site_packages.write_text(
-                pth_file, content, encoding=locale.getpreferredencoding()
+                pth_file, content, encoding=getencoding()
             )
             self._debug(
                 f"  - Adding <c2>{pth_file.name}</c2> to <b>{pth_file.parent}</b> for"

src/poetry/repositories/installed_repository.py

@@ -13,6 +13,7 @@
 from poetry.core.utils.helpers import module_name
 
 from poetry.repositories.repository import Repository
+from poetry.utils._compat import getencoding
 from poetry.utils._compat import metadata
 
 
@@ -58,7 +59,7 @@ def get_package_paths(cls, env: Env, name: str) -> set[Path]:
             if not pth_file.exists():
                 continue
 
-            with pth_file.open(encoding="utf-8") as f:
+            with pth_file.open(encoding=getencoding()) as f:
                 for line in f:
                     line = line.strip()
                     if line and not line.startswith(("#", "import ", "import\t")):

src/poetry/utils/_compat.py

@@ -1,5 +1,6 @@
 from __future__ import annotations
 
+import locale
 import sys
 
 from contextlib import suppress
@@ -50,10 +51,18 @@ def encode(string: str, encodings: list[str] | None = None) -> bytes:
     return string.encode(encodings[0], errors="ignore")
 
 
+def getencoding():
+    if sys.version_info < (3, 11):
+        return locale.getpreferredencoding()
+    else:
+        return locale.getencoding()
+
+
 __all__ = [
     "WINDOWS",
     "decode",
     "encode",
+    "getencoding",
     "metadata",
     "tomllib",
 ]

src/poetry/vcs/git/system.py

@@ -7,6 +7,8 @@
 
 from dulwich.client import find_git_command
 
+from poetry.utils._compat import getencoding
+
 
 if TYPE_CHECKING:
     from pathlib import Path
@@ -46,6 +48,7 @@ def run(*args: Any, **kwargs: Any) -> None:
             stdout=subprocess.DEVNULL,
             env=env,
             text=True,
+            encoding=getencoding(),
         )
 
     @staticmethod

tests/masonry/builders/test_editable_builder.py

@@ -2,7 +2,6 @@
 
 import csv
 import json
-import locale
 import os
 import shutil
 
@@ -20,6 +19,7 @@
 from poetry.factory import Factory
 from poetry.masonry.builders.editable import EditableBuilder
 from poetry.repositories.installed_repository import InstalledRepository
+from poetry.utils._compat import getencoding
 from poetry.utils.env import EnvCommandError
 from poetry.utils.env import EnvManager
 from poetry.utils.env import MockEnv
@@ -290,7 +290,7 @@ def test_builder_installs_proper_files_when_packages_configured(
     pth_file = tmp_venv.site_packages.find(pth_file)[0]
 
     paths = set()
-    with pth_file.open(encoding=locale.getpreferredencoding()) as f:
+    with pth_file.open(encoding=getencoding()) as f:
         for line in f.readlines():
             line = line.strip(os.linesep)
             if line: