Python Script to compare directories

compare_dirs.py

import os,hashlib
dir_orig="yo momma"
dir_new="another one"
def splitPath(p):return p.split(os.sep)
def mapDirs(dp,topdown=True):
    alldirs={"dirs":{}}
    for root,dirs,files in os.walk(dp,topdown=topdown):
        for d in dirs:
            path=splitPath(os.path.join(root,d))
            m=alldirs
            for i,p in enumerate(path):
                if not p in m["dirs"]:m["dirs"][p]={"dirs":{}}
                m=m["dirs"][p]
    return alldirs
def mapDirsFiles(dp,topdown=True):
    allstuff={"dirs":{},"files":[]}
    for root,dirs,files in os.walk(dp,topdown=topdown):
        for d in dirs:
            path=splitPath(os.path.join(root,d))
            m=allstuff
            for i,p in enumerate(path):
                if not p in m["dirs"]:m["dirs"][p]={"dirs":{},"files":[]}
                m=m["dirs"][p]
        dirpath=splitPath(root)
        dirm=allstuff
        for dp2 in dirpath:
            dirm=dirm["dirs"][dp2]
        for f in files:
            dirm["files"].append(f)
    return allstuff
def walkMap(m):
    pass
def removeRoot(path,root):return path.replace(root,"")
def mapDirs(*paths):
	obj={}
	for p in paths:
		p_abspath=os.path.abspath(p)
		obj[p_abspath]={"f":[],"d":[]}
		for root,dirs,files in os.walk(p_abspath):
			r=root.replace(p_abspath,"")
			if len(r)==0:r="\\"
			for f in files:
				obj[p_abspath]["f"].append(os.path.join(r,f))
			for d in files:
				obj[p_abspath]["d"].append(os.path.join(r,d))
	return obj
def getmd5(path,buffsize=4096):
    h=hashlib.md5()
    with open(path, "rb") as inp:
        for byt in iter(lambda: inp.read(buffsize), b""):
            h.update(byt)
    return h.hexdigest()
def compareDirs(a,b):
	a_abspath=os.path.abspath(a)
	b_abspath=os.path.abspath(b)
	dirs=mapDirs(a_abspath,b_abspath)
	output=""
	for bf in dirs[b_abspath]["f"]:
		if not bf in dirs[a_abspath]["f"]:
			output+="+ {0}\r\n".format(bf)
		else:
			a_md5=getmd5(os.path.join(a_abspath,bf.strip("\\")))
			b_md5=getmd5(os.path.join(b_abspath,bf.strip("\\")))
			if not a_md5==b_md5:output+="!= {0} {1} {2}\r\n".format(bf,a_md5,b_md5)
	for af in dirs[a_abspath]["f"]:
		if not af in dirs[b_abspath]["f"]:
			output+="- {0}\r\n".format(af)
	return output
output=compareDirs(dir_orig,dir_new)
with open("compared.txt",'w')as out:
	out.write(output)