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Simple python tool to hash dictionaries using both default hash and sha256.

Project description

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Simple python tool to hash dictionaries using both default hash and sha256. The library comes with full support for hashing pandas dataframes and numpy arrays.

How do I install this package?

As usual, just download it using pip:

pip install dict_hash

Tests Coverage

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Usage examples

The package offers two functions: sha256 to generate constant sha256 hashes and dict_hash, to generate hashes using the native hash function.

Session hash with dict_hash

Obtain a session hash from the given dictionary.

from dict_hash import dict_hash
from random_dict import random_dict
from random import randint

d = random_dict(randint(1, 10), randint(1, 10))
my_hash = dict_hash(d)

Consistent hash with sha256

Obtain a consistent hash from the given dictionary.

from dict_hash import sha256
from random_dict import random_dict
from random import randint

d = random_dict(randint(1, 10), randint(1, 10))
my_hash = sha256(d)

Hashable

When handling complex objects within the dictionaries, you may need to implement the class Hashable in that object.

Here is an example:

from dict_hash import Hashable, sha256


class MyHashable(Hashable):

    def __init__(self, a: int):
        self._a = a
        self._time = time()

    def consistent_hash(self) -> str:
        return sha256({
            "a": self._a
        })

Project details


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