Lettuce BDD

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I am following this article for TestComplete BDD: Python BDD

  Is any Specific Sequence needed to add the testComplete Module 

 File "C:/Users/X/Desktop/Let/Lettuce-Sample-Project/tc.py", line 3, in <module>
from win32com.client import Dispatch
ImportError: No module named win32com.client

C:\Python27\Scripts>lettuce.exe C:\Users\X\Desktop\Let\Lettuce-Sample-Project\typingText.feature

File "C:\Users\X\Desktop\Let\Lettuce-Sample-Project\step_definitions\defs.py", line 2, in <module>
from testcomplete import tc_step, RunRoutine
ImportError: No module named testcomplete