read_symlink: more uniform behavior

Author: scivision

+stdlib/read_symlink.m

@@ -21,7 +21,10 @@
 
       if stdlib.has_python()
         % https://docs.python.org/3/library/pathlib.html#pathlib.Path.readlink
-        r = string(py.str(py.pathlib.Path(p).readlink()));
+        r = string(py.os.readlink(p));
+        if ispc() && startsWith(r, '\\?\')
+          r = extractAfter(r, '\\?\');
+        end
       elseif stdlib.dotnet_api() >= 6
         r = System.IO.FileInfo(p).LinkTarget;
       elseif stdlib.has_java()

test/TestSymlink.m

@@ -43,11 +43,11 @@ function test_read_symlink(tc)
 tc.verifyEmpty(stdlib.read_symlink(tc.target))
 
 
-t = stdlib.read_symlink(tc.link);
+link_read = stdlib.read_symlink(tc.link);
 
 targ = string(tc.target);
 
-tc.verifyEqual(targ, t)
+tc.verifyEqual(link_read, targ)
 
 end