diff --git a/Lib/macpath.py b/Lib/macpath.py
index c023646..3b3e4ff 100644
--- a/Lib/macpath.py
+++ b/Lib/macpath.py
@@ -172,7 +172,11 @@
 def abspath(path):
     """Return an absolute path."""
     if not isabs(path):
-        path = join(os.getcwd(), path)
+        if isinstance(path, bytes):
+            cwd = os.getcwdb()
+        else:
+            cwd = os.getcwd()
+        path = join(cwd, path)
     return normpath(path)
 
 # realpath is a no-op on systems without islink support
@@ -189,7 +193,10 @@
     path = components[0] + colon
     for c in components[1:]:
         path = join(path, c)
-        path = Carbon.File.FSResolveAliasFile(path, 1)[0].as_pathname()
+        try:
+            path = Carbon.File.FSResolveAliasFile(path, 1)[0].as_pathname()
+        except Carbon.File.Error:
+            pass
     return path
 
 supports_unicode_filenames = False