fix: use importlib resources (#680)

Signed-off-by: Henry Schreiner <henryschreineriii@gmail.com>

.pre-commit-config.yaml

@@ -32,7 +32,7 @@ repos:
   - id: mypy
     files: plumbum
     args: []
-    additional_dependencies: [typed-ast, types-paramiko, types-setuptools, pytest]
+    additional_dependencies: [typed-ast, types-paramiko, types-setuptools, pytest, importlib-resources]
 
 - repo: https://github.com/abravalheri/validate-pyproject
   rev: "v0.16"

plumbum/cli/i18n.py

@@ -1,9 +1,6 @@
 from __future__ import annotations
 
 import locale
-import os
-
-DIR = os.path.abspath(os.path.dirname(__file__))
 
 # High performance method for English (no translation needed)
 loc = locale.getlocale()[0]
@@ -26,33 +23,30 @@ def get_translation_for(
 
 else:
     import gettext
+    import sys
 
-    # If not installed with setuptools, this might not be available
-    try:
-        import pkg_resources
-    except ImportError:
-        pkg_resources = None  # type: ignore[assignment]
+    if sys.version_info < (3, 9):
+        from importlib_resources import as_file, files
+    else:
+        from importlib.resources import as_file, files
 
     def get_translation_for(package_name: str) -> gettext.NullTranslations:  # type: ignore[misc]
-        """Find and return gettext translation for package
-        (Try to find folder manually if setuptools does not exist)
+        """
+        Find and return gettext translation for package
         """
         assert loc is not None
 
         if "." in package_name:
             package_name = ".".join(package_name.split(".")[:-1])
-        localedir = None
 
-        if pkg_resources is None:
-            mydir = os.path.join(DIR, "i18n")
-        else:
-            mydir = pkg_resources.resource_filename(package_name, "i18n")
+        localedir = None
 
-        for localedir in mydir, None:
-            localefile = gettext.find(package_name, localedir, languages=[loc])
-            if localefile:
-                break
+        with as_file(files(package_name) / "i18n") as mydir:
+            for localedir in mydir, None:
+                localefile = gettext.find(package_name, localedir, languages=[loc])
+                if localefile:
+                    break
 
-        return gettext.translation(
-            package_name, localedir=localedir, languages=[loc], fallback=True
-        )
+            return gettext.translation(
+                package_name, localedir=localedir, languages=[loc], fallback=True
+            )

pyproject.toml

@@ -16,6 +16,7 @@ requires-python = ">=3.8"
 dynamic = ["version"]
 dependencies = [
     "pywin32; platform_system=='Windows' and platform_python_implementation!='PyPy'",
+    "importlib_resources; python_version<'3.9'",
 ]
 classifiers = [
     "Development Status :: 5 - Production/Stable",