When I print the system path it appears as if all paths point to a 10.2 version or Python27 version. I do have a Python26 installed on my computer from the 10.0 version of Arc.
['C:\\Program Files\\PyScripter\\Lib\\rpyc.zip',
'C:\\Windows\\system32\\python27.zip',
'C:\\Python27\\ArcGISx6410.2\\DLLs',
'C:\\Python27\\ArcGISx6410.2\\lib',
'C:\\Python27\\ArcGISx6410.2\\lib\\plat-win',
'C:\\Python27\\ArcGISx6410.2\\lib\\lib-tk',
'C:\\Python27\\ArcGISx6410.2',
'C:\\Python27\\ArcGISx6410.2\\lib\\site-packages',
'C:\\Program Files (x86)\\ArcGIS\\Desktop10.2\\bin64',
'C:\\Program Files (x86)\\ArcGIS\\Desktop10.2\\arcpy',
'C:\\Program Files (x86)\\ArcGIS\\Desktop10.2\\ArcToolbox\\Scripts',
'C:\\Python27\\ArcGISx6410.2\\lib\\site-packages\\win32',
'C:\\Python27\\ArcGISx6410.2\\lib\\site-packages\\win32\\lib',
'C:\\Python27\\ArcGISx6410.2\\lib\\site-packages\\Pythonwin']