import win32com.client

o = win32com.client.Dispatch("REDI.ORDER")
o.Side      = "Buy"
o.symbol    = "IBM"
o.Exchange  = "DEMO DMA"
o.Quantity  = "10"
o.PriceType = "Market"
# o.PriceType = "Limit"
# o.Price     = "0.01"
o.TIF       = "Day"
o.Account   = "DEMO"
o.Ticket    = "Bypass"

# Prepare a variable which can handle returned values from submit method of the order object.
msg = win32com.client.VARIANT(win32com.client.pythoncom.VT_BYREF | win32com.client.pythoncom.VT_VARIANT, None)

# Send an options order
result = o.Submit(msg)

# print result # 'True' if order submission was successful; otherwise 'False'
print (msg)    # message from submit