+ prog_size = ((size + MB - 1) // MB) # in MB
+ progressbar = self.out.Progress(prog_size, "Calculating md5sum", 'mb')
+ md5 = hashlib.md5()
+ with open(filename, "r") as src:
+ left = size
+ while left > 0:
+ length = min(left, BLOCKSIZE)
+ data = src.read(length)
+ md5.update(data)
+ left -= length
+ progressbar.goto((size - left) // MB)