getrvtpathbim360linked.cs

public void Action()
        {
            StringBuilder sb = new StringBuilder();
            IList<Element> elements = new FilteredElementCollector(DB.Doc).OfClass(typeof(RevitLinkType)).ToElements();
            foreach (Element element in elements)
            {
                sb.AppendLine(GetExtFileRefPath(element));
            }

            MessageBox.Show(sb.ToString());
        }

        string GetExtFileRefPath(Element item)
        {
            IDictionary<ExternalResourceType,ExternalResourceReference> resourceReferences = item.GetExternalResourceReferences();
            foreach (KeyValuePair<ExternalResourceType,ExternalResourceReference> valuePair in resourceReferences)
            {
                var path = valuePair.Value.InSessionPath;
                return path;
            }
            return string.Empty;
        }

getrvtpathbim360linked.py

# Load the Python Standard and DesignScript Libraries
import clr
clr.AddReference('RevitAPI')
from Autodesk.Revit.DB import *
# Import DocumentManager and TransactionManager
clr.AddReference("RevitServices")
import RevitServices
from RevitServices.Persistence import DocumentManager
paths = []
def GetExtFileRefPath(item):
	try :
	   dirRefs = item.GetExternalResourceReferences()
	   for i,v in enumerate(dirRefs):
	       return v.Value.InSessionPath
	except Exception as e: return e.ToString()
doc = DocumentManager.Instance.CurrentDBDocument
items = FilteredElementCollector(doc).OfClass(RevitLinkType).ToElements()
OUT = [GetExtFileRefPath(x) for x in items]

getrvtpathbim360linkedabs.py

import clr
clr.AddReference('RevitAPI')
from Autodesk.Revit.DB import *

def GetExtFileRefPath(item):
	try: return ModelPathUtils.ConvertModelPathToUserVisiblePath(item.GetExternalFileReference().GetAbsolutePath())
	except: return None

items = UnwrapElement(IN[0])

if isinstance(IN[0], list): OUT = [GetExtFileRefPath(x) for x in items]
else: OUT = GetExtFileRefPath(items)