Refactor for nicer indentation

setuptools/command/easy_install.py

@@ -81,14 +81,13 @@ def is_64bit():
     return struct.calcsize("P") == 8
 
 def samefile(p1, p2):
-    if hasattr(os.path,'samefile') and (
-        os.path.exists(p1) and os.path.exists(p2)
-    ):
-        return os.path.samefile(p1,p2)
-    return (
-        os.path.normpath(os.path.normcase(p1)) ==
-        os.path.normpath(os.path.normcase(p2))
-    )
+    both_exist = os.path.exists(p1) and os.path.exists(p2)
+    use_samefile = hasattr(os.path, 'samefile') and both_exist
+    if use_samefile:
+        return os.path.samefile(p1, p2)
+    norm_p1 = os.path.normpath(os.path.normcase(p1))
+    norm_p2 = os.path.normpath(os.path.normcase(p2))
+    return norm_p1 == norm_p2
 
 if sys.version_info <= (3,):
     def _to_ascii(s):