[Python] How to set time interval to get frames from input video?

I m trying to get frames from input video for particular time interval.so suggest me any solution that would be helpful for me.Tell me how to set time limit in the following code.

import cv2

vidcap = cv2.VideoCapture('baahubali2.mp4')
vidcap.set(cv2.CAP_PROP_POS_MSEC,1000)

success, image = vidcap.read()
count = 0
success = True

while success:
success, image = vidcap.read()
print('Read a new frame: ', success)
cv2.imwrite("/home/kapil/Documents/major/image/frame%d.jpg" % count, image)
count += 1

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