Rename _get_package_path to get_root_path to avoid confusion

flask/helpers.py

@@ -466,8 +466,12 @@ def send_from_directory(directory, filename, **options):
     return send_file(filename, conditional=True, **options)
 
 
-def get_package_path(name):
-    """Returns the path to a package or cwd if that cannot be found."""
+def get_root_path(name):
+    """Returns the path to a package or cwd if that cannot be found.  This
+    returns the path of a package or the folder that contains a module.
+
+    Not to be confused with the package path returned by :func:`find_package`.
+    """
     try:
         return os.path.abspath(os.path.dirname(sys.modules[name].__file__))
     except (KeyError, AttributeError):
@@ -549,7 +553,7 @@ class _PackageBoundObject(object):
         self.template_folder = template_folder
 
         #: Where is the app root located?
-        self.root_path = get_package_path(self.import_name)
+        self.root_path = get_root_path(self.import_name)
 
         self._static_folder = None
         self._static_url_path = None