Merge https://github.com/pypa/distutils into feature/local-schemes

1 files changed, 11 insertions, 4 deletions

diff --git a/setuptools/_distutils/command/install_egg_info.py b/setuptools/_distutils/command/install_egg_info.py
index 0ddc7367..adc0323f 100644
--- a/setuptools/_distutils/command/install_egg_info.py
+++ b/setuptools/_distutils/command/install_egg_info.py
@@ -19,14 +19,21 @@ class install_egg_info(Command):
     def initialize_options(self):
         self.install_dir = None
 
-    def finalize_options(self):
-        self.set_undefined_options('install_lib',('install_dir','install_dir'))
-        basename = "%s-%s-py%d.%d.egg-info" % (
+    @property
+    def basename(self):
+        """
+        Allow basename to be overridden by child class.
+        Ref pypa/distutils#2.
+        """
+        return "%s-%s-py%d.%d.egg-info" % (
             to_filename(safe_name(self.distribution.get_name())),
             to_filename(safe_version(self.distribution.get_version())),
             *sys.version_info[:2]
         )
-        self.target = os.path.join(self.install_dir, basename)
+
+    def finalize_options(self):
+        self.set_undefined_options('install_lib',('install_dir','install_dir'))
+        self.target = os.path.join(self.install_dir, self.basename)
         self.outputs = [self.target]
 
     def run(self):