pyt - can't get path of Toolbox in new release

Hello,

please help me. The Problem has shown with release of 10.2.1 and arcgis upgrade to Python 2.7.5.

Function:

class Toolbox(object):
def __init__(self):
sysPaths = sys.path

The result of sysPath is "['C:\\Windows\\system32\\python27.zip', u'c:\\program files (x86)\\arcgis\\desktop10.2\\arcpy', 'C:\\Program Files (x86)\\Python27\\ArcGIS10.2\\Lib', 'C:\\Program Files (x86)\\Python27\\ArcGIS10.2\\DLLs', 'C:\\Program Files (x86)\\Python27\\ArcGIS10.2\\Lib\\lib-tk', 'C:\\Windows\\System32', 'C:\\Program Files (x86)\\ArcGIS\\Desktop10.2\\bin', 'C:\\Program Files (x86)\\Python27\\ArcGIS10.2', 'C:\\Program Files (x86)\\Python27\\ArcGIS10.2\\lib\\site-packages', 'C:\\Program Files (x86)\\ArcGIS\\Desktop10.2\\arcpy', 'C:\\Program Files (x86)\\ArcGIS\\Desktop10.2\\ArcToolbox\\Scripts']" in the new release.

The former release of 10.2.0 shows this result and includes the Folder-path of the python Toolbox in the first position, which I need very much.
[u'C:\\...\\...\\Install', 'C:\\Windows\\system32\\python27.zip', u'c:\\program files (x86)\\arcgis\\desktop10.2\\arcpy', 'C:\\Python27\\ArcGIS10.2\\Lib', 'C:\\Python27\\ArcGIS10.2\\DLLs', 'C:\\Python27\\ArcGIS10.2\\Lib\\lib-tk', 'C:\\Windows\\system32', 'C:\\Program Files (x86)\\ArcGIS\\Desktop10.2\\bin', 'C:\\Python27\\ArcGIS10.2', 'C:\\Python27\\ArcGIS10.2\\lib\\site-packages', 'C:\\Program Files (x86)\\ArcGIS\\Desktop10.2\\arcpy', 'C:\\Program Files (x86)\\ArcGIS\\Desktop10.2\\ArcToolbox\\Scripts', 'C:\\Python27\\ArcGIS10.2\\lib\\site-packages\\win32', 'C:\\Python27\\ArcGIS10.2\\lib\\site-packages\\win32\\lib', 'C:\\Python27\\ArcGIS10.2\\lib\\site-packages\\Pythonwin']


What other way is there to get the path of the Toolbox??? Please help!

Regards,
Rosita