Error: "No module named _mysql" When run Python(2.7.3) Script in .Net Using IronPython

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.NET

.NET4

Python2.7

Hello Friends i try to run my python(2.7.3)script in .net using IronPython when i try to run Simple Script like print "Hello World"
and
"code for oprn Browser using python"
import sys
sys.path.append(r'C:\Program Files (x86)\IronPython 2.7\Lib')
import webbrowser
import os
import urllib
webbrowser.open('http://google.co.in')

it is run successfully but when i try to run my script it gives error "No module named _mysql" so any body now how to solve this error or any idea about this error please tell me .

thanks in advance.