Hash files under working folder recursively for hard drive read test.

masshash.py

#Hash files under working folder recursively
#for hard drive read test.
#Released as CC0
from __future__ import print_function
import hashlib
import os
import time

if __name__=="__main__":
    while True:
        w = os.walk(".")
        for pth, folderList, fileList in w:
            #if pth[:5] == "./dev":
            #    continue
            for fina in fileList:
                fullFina = os.path.join(pth, fina)
                try:
                    m = hashlib.md5()
                    fi = open(fullFina, "rb")
                    d = fi.read(1000000)
                    while len(d) > 0:
                        m.update(d)
                        d = fi.read(1000000)
                    print (fullFina, m.hexdigest())
                except IOError:
                    print ("Error opening", fullFina)

        time.sleep(5)