RuntimeError: cannot load dispatch table from pyexpat

[Yebach]

I am getting the following error after I reinstalled my machine. I am using Python 27 (32-bit)

Traceback (most recent call last):
  File "C:\workspaces\Python\iRazpored\gluon\restricted.py", line 217, in restricted
    exec ccode in environment
  File "C:/workspaces/Python/iRazpored/applications/bilbanstevci/controllers/stevci.py", line 7, in <module>
    from openpyxl import Workbook
  File "C:\workspaces\Python\iRazpored\gluon\custom_import.py", line 94, in custom_importer
    raise e2  # there is an error in the module
RuntimeError: cannot load dispatch table from pyexpat

Any suggestions

[Yebach]

Same thing when using the 64bit version etc. 

Any ideas? this is really a real pain in the .....

thank you