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- import os
- import hashlib
- import json
- import copy
- def md5_for_file(path, block_size=2**20):
- md5 = hashlib.md5()
- with open(path) as f:
- while True:
- data = f.read(block_size)
- if not data:
- break
- md5.update(data)
- return md5.hexdigest()
- def mkdir(newdir):
- """works the way a good mkdir should :)
- - already exists, silently complete
- - regular file in the way, raise an exception
- - parent directory(ies) does not exist, make them as well
- """
- if os.path.isdir(newdir):
- pass
- elif os.path.isfile(newdir):
- raise OSError("a file with the same name as the desired " \
- "dir, '{0}', already exists.".format(newdir))
- else:
- head, tail = os.path.split(newdir)
- if head and not os.path.isdir(head):
- mkdir(head)
- #print "mkdir {0}.format(repr(newdir))
- if tail:
- os.mkdir(newdir)
- class JSONEncodable(object):
- """An inheritance mixin to make a class encodable to JSON"""
- def to_dict(self):
- d = copy.copy(self.__dict__)
- for key,value in d.items():
- if hasattr(value,"to_dict"):
- d[key] = value.to_dict()
- return d
- def to_json(self):
- return json.dumps(self.to_dict(),sort_keys=True,indent=4)
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