Сравнить и заменить значение MD5 суммы в файле

import os
import hashlib
 
m = hashlib.md5()
 
def MD5Hash(filename):
    with open(filename, 'rb') as fd:
        b = fd.read()
        m.update(b)
    return m.hexdigest()
 
rootpath = ' '
 
with open(rootpath+"/checksums.txt", 'w') as log:
    for dirname, dirnames, filenames in os.walk(rootpath):
        for filename in filenames:
            fname = os.path.join(dirname, filename)
            #print fname
            hv = MD5Hash(fname)
            if fname.find(".git")==-1 and fname.find(".DS_Store")==-1:
                    log.write("%s %s\n" % (os.path.relpath( fname, rootpath ), hv) )

fname_parsed = dict(map(string.split, open(fname, 'r').readlines()))

# -*- coding: utf-8 -*-
 
d = 'A=1 B=2 C=3 D=4'
s = [x.split('=') for x in d.split(' ')]
x = ['D', '4']
 
for f in range(0, len(s)):
    if x[0] and x[1] in s[f]:
        print(s[f])

def update_hash_path(infile):
  book= {x.split()[0]: x.split()[1] for x in open(infile) if x}
  for key in book:
    print '{:<120}{:<35}'.format(key, book[key])
    current_hash = md5(open(key).read()).hexdigest()
    if book[key] not in current_hash:
      print 'Need update ==>', key
      book[key] = current_hash

def update_hash_path(infile):
  book= {x.split()[0]: x.split()[1] for x in open(infile) if x}
  for key in book:
    current_hash = md5(open(key).read()).hexdigest()
    if book[key] not in current_hash:
      book[key] = current_hash
  with open(infile,'w') as outf:
    outf.writelines(''.join([''.join(key+' '+book[key]+'\n') for key in book]))

#!bin/python
import os
import hashlib
 
m = hashlib.md5()
 
def MD5Hash(filename):
    with open(filename, 'rb') as fd:
        b = fd.read()
        m.update(b)
    return m.hexdigest()
 
rootpath = 'Путь_к_проекту'
 
with open(rootpath+"/checksums.txt", 'r') as log:
    book= {x.split()[0]: x.split()[1] for x in log if x}
    print book
    for key in book:
        for dirname, dirnames, filenames in os.walk(rootpath):
            for filename in filenames:
                fname = os.path.join(dirname, filename)
                #print fname
                hv = hashlib.md5(open(key).read()).hexdigest()
                if fname.find("*//.git")==-1 and fname.find("*//.DS_Store")==-1:
                    if book[key] not in hv:
                        book[key] = hv
                    with open(rootpath+"/checksums.txt",'w') as outf:
                        outf.writelines(''.join([''.join(key+' '+book[key]+'\n') for key in book]))
                        #outf.writelines("%s %s\n" % (os.path.relpath( fname, rootpath ), hv) )

import fnmatch
import hashlib
import os
import re
from collections import OrderedDict
from itertools import filterfalse
 
HASH_NAME = "checksum.txt"
 
def md5(fname):
    result = hashlib.md5()
    with open(fname, "rb") as f:
        while True:
            d = f.read(8192)
            if not d:
                break
            result.update(d)
    return result.hexdigest()
 
 
def locatefalse(pattern="", root=os.curdir):
    join = os.path.join
    root = os.path.abspath(root)
 
    pattern = "{};{}".format(pattern, HASH_NAME) if pattern else HASH_NAME
    pattern = pattern.split(";")
    pattern = re.compile("|".join(map(fnmatch.translate, pattern)), re.I).match
 
    for path, dirs, files in os.walk(root):
        for filename in filterfalse(pattern, files):
            yield join(path, filename)
 
 
def update_hash(pattern, root):
    chkname = os.path.join(root, HASH_NAME)
    if os.path.exists(chkname):
        with open(chkname, "rt", encoding="utf-8") as f:
            book = OrderedDict(x.split() for x in f if x)
    else:
        book = OrderedDict()
 
    relpath = os.path.relpath
 
    files = set()
 
    for name in locatefalse(pattern, root):
        key = relpath(name, root)
        _hash = md5(name)
        if key in book:
            if _hash != book[key]:
                print("update checksum for {}".format(key))
                book[key] = _hash
        else:
            print("add checksum for {}".format(key))
            book[key] = _hash
        files.add(key)
 
    for key in set(book) - files:
        print("delete checksum for {}".format(key))
        del book[key]
 
    with open(chkname, "wt", encoding="utf-8") as f:
        all(map(f.write, ("{} {}\n".format(k, v) for k, v in book.items())))
 
 
if "__main__" == __name__:
    update_hash("*.git;*.ds_store", "Путь_к_проекту")

import hashlib
import os
 
HASH_NAME = "checksum.txt"
 
def md5(filename):
    result = hashlib.md5()
    with open(filename, "rb") as fn:
        while True:
            d = fn.read(8192)
            if not d:
                break
            result.update(d)
    return result.hexdigest()
 
def update_hash(root):
    chkname = os.path.join(root, HASH_NAME)
    if os.path.exists(chkname):
            with open(chkname, "rt") as logs:
                book = {x.split()[0]: x.split()[1] for x in logs if x}
    else:
        book = {}
    for dirname, dirnames, filenames in os.walk(root):
        for filename in filenames:
            fname = os.path.join(dirname, filename)
            _hash = md5(fname)
            if fname.find(".git")==-1 and fname.find(".DS_Store")==-1:
                if fname in book:
                    if _hash != book[fname]:
                        print("update checksum for {}".format(fname))
                        book[fname] = _hash
                else:
                    print("add checksum for {}".format(fname))
                    book[fname] = _hash
    with open(chkname, "wt") as fw:
        all(map(fw.write, ("{} {}\n".format(k, v) for k, v in book.items())))
 
if "__main__" == __name__:
    update_hash("начальный_каталог")