diff --git a/platformio/compat.py b/platformio/compat.py
index 0f4dd3c3..c812e98d 100644
--- a/platformio/compat.py
+++ b/platformio/compat.py
@@ -38,12 +38,14 @@ def get_locale_encoding():
         return None
 
 
-def get_class_attributes(cls):
-    attributes = inspect.getmembers(cls, lambda a: not inspect.isroutine(a))
+def get_object_members(obj, ignore_private=True):
+    members = inspect.getmembers(obj, lambda a: not inspect.isroutine(a))
+    if not ignore_private:
+        return members
     return {
-        a[0]: a[1]
-        for a in attributes
-        if not (a[0].startswith("__") and a[0].endswith("__"))
+        item[0]: item[1]
+        for item in members
+        if not (item[0].startswith("__") and item[0].endswith("__"))
     }
 
 
diff --git a/platformio/package/manifest/parser.py b/platformio/package/manifest/parser.py
index 60138609..e8ec5929 100644
--- a/platformio/package/manifest/parser.py
+++ b/platformio/package/manifest/parser.py
@@ -21,7 +21,7 @@ import re
 import requests
 
 from platformio import util
-from platformio.compat import get_class_attributes, string_types
+from platformio.compat import get_object_members, string_types
 from platformio.package.exception import ManifestParserError, UnknownManifestError
 from platformio.project.helpers import is_platformio_project
 
@@ -40,7 +40,7 @@ class ManifestFileType(object):
 
     @classmethod
     def items(cls):
-        return get_class_attributes(ManifestFileType)
+        return get_object_members(ManifestFileType)
 
     @classmethod
     def from_uri(cls, uri):