You can use hashlib.md5() Note that sometimes you won’t be able to fit the whole file in memory. In that case, you’ll have to read chunks of 4096 bytes sequentially and feed them to the md5 method: import hashlib def md5(fname): hash_md5 = hashlib.md5() with open(fname, “rb”) as f: for chunk in iter(lambda: f.read(4096), b””): … Read more
There’s an input stream decorator, java.security.DigestInputStream, so that you can compute the digest while using the input stream as you normally would, instead of having to make an extra pass over the data. MessageDigest md = MessageDigest.getInstance(“MD5”); try (InputStream is = Files.newInputStream(Paths.get(“file.txt”)); DigestInputStream dis = new DigestInputStream(is, md)) { /* Read decorated stream (dis) to … Read more