I followed the very clear directions in the answer to Installing pandas with Esri's python? and created the Esri101 build and added a "conda.pth" file to my C:\Python27\ArcGIS10.2\Lib\site-packages\conda.pth
and in the conda.pth file I pasted the location of my Esri101 build with no quotes When I open ArcMap or the Python27 IDLE and type ">>> import pandas" I get the resulting error:
DLL load failed: %1 is not a valid Win32 application. Traceback (most recent call last): File "<pyshell#0>", line 1, in <module> import pandas File "C:\Anaconda\envs\esri101\Lib\site-packages\pandas\__init__.py", line 6, in <module> from . import hashtable, tslib, lib ImportError: DLL load failed: %1 is not a valid Win32 application.
Quick check online makes me think this might have something to do with running a 64-bit anaconda and a 32 bit ArcGIS.