How to fix this Python script error with win32com outlook app

I'm following a video on youtube on creating a new mail with python. But I'm getting error. Am I missing something? My goal is to create a new mail and insert images from a folder into it. The first and second lines are executed successfully. How can I fix this?

 My code is below:

 import win32com.client as win32
 from win32com.client import Dispatch
 o1App = win32.Dispatch('Outlook.Application')
 o1NS = o1App.GetNameSpace('MAPI')

 Error:

 com_error                                 Traceback (most recent call last)
 C:\ProgramData\Anaconda3\lib\site-packages\win32com\client\dynamic.py in                        _GetGoodDispatch(IDispatch, clsctx)
      88                 try:
 ---> 89                         IDispatch = pythoncom.connect(IDispatch)
      90                 except pythoncom.ole_error:

 com_error: (-2147221005, 'Invalid class string', None, None)

 During handling of the above exception, another exception occurred:

 com_error                                 Traceback (most recent call last)
 <ipython-input-13-a706b9d3cc9d> in <module>
 ----> 1 o1App = win32.Dispatch('Outlook.Application')
       2 o1NS = o1App.GetNameSpace('MAPI')

 C:\ProgramData\Anaconda3\lib\site-packages\win32com\client\__init__.py in      Dispatch(dispatch, userName, resultCLSID, typeinfo, UnicodeToString, clsctx)
      93   """
      94   assert UnicodeToString is None, "this is deprecated and will go away"
 ---> 95   dispatch, userName =         dynamic._GetGoodDispatchAndUserName(dispatch,userName,clsctx)
 96   return __WrapDispatch(dispatch, userName, resultCLSID, typeinfo, clsctx=clsctx)
 97 

 C:\ProgramData\Anaconda3\lib\site-packages\win32com\client\dynamic.py in _GetGoodDispatchAndUserName(IDispatch, userName, clsctx)
    112         else:
    113                 userName = str(userName)
--> 114         return (_GetGoodDispatch(IDispatch, clsctx), userName)
    115 
    116 def _GetDescInvokeType(entry, invoke_type):

 C:\ProgramData\Anaconda3\lib\site-packages\win32com\client\dynamic.py in _GetGoodDispatch(IDispatch, clsctx)
    89                         IDispatch = pythoncom.connect(IDispatch)
    90                 except pythoncom.ole_error:
---> 91                         IDispatch = pythoncom.CoCreateInstance(IDispatch, None,   clsctx, pythoncom.IID_IDispatch)
    92         else:
    93                 # may already be a wrapped class.

com_error: (-2147221005, 'Invalid class string', None, None)