new at google distance matrix api with python and got the following error: :     <p><bold>This is my code :</bold></p>
    <p>from googlemaps import Client as GoogleMaps
    mapServices=GoogleMaps('')
    start = 'texarkana'
    end   = 'atlanta'
    direction= mapServices.directions(start, end)
    for step in direction['Direction']['Routes'][0]['Steps']:
	print (step['descriptionHtml'])</p>
 

 1. List item

    <p><bold>error i am getting:</bold></p>
    <p>File "C:\Python27\directions.py", line 7, in <module>
    for step in direction['Direction']['Routes'][0]['Steps']:
    TypeError: list indices must be integers, not str</p>
