compute sha256sum of files under folder.

compute.py

"""Tools to compute sha256 of files and find duplicate files"""

import hashlib
import os

f = open("sha256.txt", "w")


def compute_sha256(file):
    with open(file, "rb") as f:
        return hashlib.sha256(f.read()).hexdigest()


dicts = {}

for root, dirs, files in os.walk("."):
    for file in files:
        # compute sha256
        sha256result = compute_sha256(os.path.join(root, file))
        if sha256result in dicts.keys():
            dicts[sha256result].append(os.path.join(root, file))
        else:
            dicts[sha256result] = [os.path.join(root, file)]

for sha256result, files in dicts.items():
    if len(files) > 1:
        print(f"{sha256result}\t{files}")


f.close()