I've updated my ArcGIS desktop version from 10.2 to 10.2.1 and have noticed that when I run the 64 bit version of IDLE I now get an error when trying to import arcpy:
Python 2.7.3 (default, Apr 10 2012, 23:24:47) [MSC v.1500 64 bit (AMD64)] on win32 Type "copyright", "credits" or "license()" for more information. >>> import arcpy Traceback (most recent call last): File "<pyshell#0>", line 1, in <module> import arcpy File "C:\Program Files (x86)\ArcGIS\Desktop10.2\arcpy\arcpy\__init__.py", line 24, in <module> from arcpy.toolbox import * File "C:\Program Files (x86)\ArcGIS\Desktop10.2\arcpy\arcpy\toolbox.py", line 656, in <module> from na import AddFieldToAnalysisLayer as AddFieldToAnalysisLayer_na File "C:\Program Files (x86)\ArcGIS\Desktop10.2\arcpy\arcpy\na.py", line 26, in <module> import _na File "C:\Program Files (x86)\ArcGIS\Desktop10.2\arcpy\arcpy\_na.py", line 46, in <module> class StreetDirectionsProperties(na.StreetDirectionsProperties): AttributeError: 'module' object has no attribute 'StreetDirectionsProperties'
So the error seems to come from failing to find a module for the Network Analyst extension, which I see is listed as one of the updated Python features in 10.2.1: (http://resources.arcgis.com/en/help/main/10.2/#/What_s_new_in_ArcGIS_10_2_1/016w0000005v000000/). I'm guessing the 10.2.1 release didn't update both the 32 AND 64 bit versions of Arcpy when installing Python 2.7.5. The version I still have in C:\Python27\ArcGISx6410.2 is 2.7.3, but this seems to now be in conflict with the new install.
Can someone please help me figure out how to correct this issue with IDLE? I really need to be able to run stand-alone 64 bit Arcpy scripts. I'm aware of 64 bit background geoprocessing in ArcMap/ArcCatalog, but this is different. I run heavy lifting stand-alone scripts that must be in the 64 bit version.