Hi Malia, Could you answer the following questions so we could better understand your problem? 1)What is your operating system and version of IDL? i.e. IDL 8.5.1 on Windows 7 65 bit 2) What Python are you using? i.e. Anaconda with Python 2.7 3) Do you have a small, self contained example which illustrates the problem you are seeing? Thanks in advance for the extra information! -Zach (VIS)

Hi Zach, Thanks for your reply! Here's the info: 1) IDL 8.5 and IDL 8.5.1 on RHEL6.4, 64 bit 2) Anaconda with Python 2.7 3) Here's the same lines of code that I tested with both 8.5 and 8.5.1. I got the same error for both: pd = python.import('pandas') df = pd.DataFrame(data=[[1,2],[3,4]], columns = ['c1','c2']) x = df.iLoc[0] % Python : Unable to index object of type: "_iLocIndexer" When I run these same codes but use the python notation, the iLoc call does work. >>> import pandas as pd >>> df = pd.DataFrame(data=[[1,2],[3,4]], columns = ['c1','c2']) >>> print (df) c1 c2 0 1 2 1 3 4 >>> x=df.iLoc[0] >>>print(x) c1 1 c2 2 Name: 0, dtype: int64 Hope that brings some insight! -Malia