Get a sha256 of every file in a directory, no recursion.

sha256dir.py

import os, sys, hashlib

def sha_list(fList):
        for folder, items in fList:
                for file in items:
                        sha = sha256(os.path.join(folder, file))
                        write_file(folder, file, sha)

def crawl(argv):
        origDir = os.getcwd()
        fList = []
        for folder in argv:
                f = []
                os.chdir(folder)
                cwd = os.getcwd()
                for item in os.listdir(cwd):
                        if os.path.isfile(item):
                                f.append(item)
                fList.append([cwd, sorted(f)])
                os.chdir(origDir)
        return fList

def sha256(path):
        s = hashlib.sha256()
        file = open(path, "rb")
        buff_size = 65536
        while True:
                data = file.read(buff_size)
                if not data:
                        break
                s.update(data)
        file.close()
        return s.hexdigest()

def write_file(folder, file, sha):
        # * is a binary flag. Unix systems don't care, Windows does.
        # chr(10), linefeed character
        line = sha + " *" + file  + chr(10)
        sFile = os.path.join(folder, os.path.basename(folder) + ".sha2")
        f = open(sFile, 'a')
        f.write(str(line))
        f.close()


def main(argv):
        sha_list(crawl(argv))

if __name__ == "__main__":
        main(sys.argv[1:])