def adler32(v):
a = 1
b = 0
for c in v:
a = (a + c) % 65521
b = (a + b) % 65521
return a | (b << 16)
def readFile(filename):
in_file = open(filename, "rb")
data = in_file.read()
in_file.close()
return data
def adler32sum(filename):
sum = adler32(readFile(filename))
print("{0:08X}".format(sum))
adler32sum("test-files/r5rs.pdf")
