up

server/.venv/lib/python3.11/site-packages/setuptools/namespaces.py

@@ -1,21 +1,21 @@
-import itertools
 import os
-
-from .compat import py312
-
 from distutils import log
+import itertools
+
 
 flatten = itertools.chain.from_iterable
 
 
 class Installer:
+
     nspkg_ext = '-nspkg.pth'
 
-    def install_namespaces(self) -> None:
+    def install_namespaces(self):
         nsp = self._get_all_ns_packages()
         if not nsp:
             return
-        filename = self._get_nspkg_file()
+        filename, ext = os.path.splitext(self._get_target())
+        filename += self.nspkg_ext
         self.outputs.append(filename)
         log.info("Installing %s", filename)
         lines = map(self._gen_nspkg_line, nsp)
@@ -25,44 +25,45 @@ class Installer:
             list(lines)
             return
 
-        with open(filename, 'wt', encoding=py312.PTH_ENCODING) as f:
-            # Python<3.13 requires encoding="locale" instead of "utf-8"
-            # See: python/cpython#77102
+        with open(filename, 'wt') as f:
             f.writelines(lines)
 
-    def uninstall_namespaces(self) -> None:
-        filename = self._get_nspkg_file()
+    def uninstall_namespaces(self):
+        filename, ext = os.path.splitext(self._get_target())
+        filename += self.nspkg_ext
         if not os.path.exists(filename):
             return
         log.info("Removing %s", filename)
         os.remove(filename)
 
-    def _get_nspkg_file(self):
-        filename, _ = os.path.splitext(self._get_target())
-        return filename + self.nspkg_ext
-
     def _get_target(self):
         return self.target
 
     _nspkg_tmpl = (
         "import sys, types, os",
+        "has_mfs = sys.version_info > (3, 5)",
         "p = os.path.join(%(root)s, *%(pth)r)",
-        "importlib = __import__('importlib.util')",
-        "__import__('importlib.machinery')",
+        "importlib = has_mfs and __import__('importlib.util')",
+        "has_mfs and __import__('importlib.machinery')",
         (
-            "m = "
+            "m = has_mfs and "
             "sys.modules.setdefault(%(pkg)r, "
             "importlib.util.module_from_spec("
             "importlib.machinery.PathFinder.find_spec(%(pkg)r, "
             "[os.path.dirname(p)])))"
         ),
-        ("m = m or sys.modules.setdefault(%(pkg)r, types.ModuleType(%(pkg)r))"),
+        (
+            "m = m or "
+            "sys.modules.setdefault(%(pkg)r, types.ModuleType(%(pkg)r))"
+        ),
         "mp = (m or []) and m.__dict__.setdefault('__path__',[])",
         "(p not in mp) and mp.append(p)",
     )
     "lines for the namespace installer"
 
-    _nspkg_tmpl_multi = ('m and setattr(sys.modules[%(parent)r], %(child)r, m)',)
+    _nspkg_tmpl_multi = (
+        'm and setattr(sys.modules[%(parent)r], %(child)r, m)',
+    )
     "additional line(s) when a parent package is indicated"
 
     def _get_root(self):
@@ -80,7 +81,7 @@ class Installer:
     def _get_all_ns_packages(self):
         """Return sorted list of all package namespaces"""
         pkgs = self.distribution.namespace_packages or []
-        return sorted(set(flatten(map(self._pkg_names, pkgs))))
+        return sorted(flatten(map(self._pkg_names, pkgs)))
 
     @staticmethod
     def _pkg_names(pkg):