fastutils 0.13.3

Collection of simple utils.

fastutils

Collection of simple utils.

Install

pip install fastutils

Installed Utils

• aesutils # use cipherutils instead
• cacheutils
  • get_cached_value
• cipherutils
  • AesCipher # standard cipher, default to aes-128-ecb with sha1prng_key.
  • S12Cipher # self-designed, turn 1 byte data to 2 byte data with random gap.
  • IvCipher # self-designed, trun integer number increase randomly.
  • IvfCipher # self-designed, based on IvCihper, for float number encrypt and decrypt.
• dictutils
  • deep_merge
  • select
  • update
  • ignore_none_item # None, [], {} will be ignored. 0, False, "" and other empty element will keep.
• funcutils
  • get_inject_params
  • call_with_inject
• hashutils
  • get_file_md5
  • get_file_sha
  • get_file_sha1
  • get_file_sha224
  • get_file_sha256
  • get_file_sha384
  • get_file_sha512
  • get_md5
  • get_sha
  • get_sha1
  • get_sha224
  • get_sha256
  • get_sha384
  • get_sha512
  • get_md5_base64
  • get_sha_base64
  • get_sha1_base64
  • get_sha224_base64
  • get_sha256_base64
  • get_sha384_base64
  • get_sha512_base64
  • get_pbkdf2_hmac
  • get_pbkdf2_md5
  • get_pbkdf2_sha
  • get_pbkdf2_sha1
  • get_pbkdf2_sha224
  • get_pbkdf2_sha256
  • get_pbkdf2_sha384
  • get_pbkdf2_sha512
  • validate_pbkdf2_hmac
  • validate_pbkdf2_md5
  • validate_pbkdf2_sha
  • validate_pbkdf2_sha1
  • validate_pbkdf2_sha224
  • validate_pbkdf2_sha256
  • validate_pbkdf2_sha384
  • validate_pbkdf2_sha512
• imageutils
  • get_image_bytes
  • get_base64image
  • parse_base64image
  • resize
• jsonutils
  • SimpleJsonEncoder
  • simple_json_dumps
  • register_global_encoder
• listutils
  • int_list_to_bytes # deprecated, see strutils.ints2bytes
  • pad
  • chunk
  • clean_none
  • ignore_none_element # alias of clean_none
  • unique
  • replace
  • append_new
  • group
• randomutils
  • Random
    • random
    • randint
    • get_bytes
    • choice
    • choices
    • shuffle
• rsautils
  • newkeys
  • load_private_key
  • load_public_key
  • load_public_key_from_private_key
  • encrypt
  • decrypt
  • export_key
• sixutils
• strutils
  • random_string
  • char_force_to_int
  • force_bytes
  • force_text
  • force_int
  • force_float
  • force_numeric
  • wholestrip
  • split
  • str_composed_by
  • is_str_composed_by_the_choices (alias of str_composed_by)
  • is_hex_digits
  • join_lines
  • is_urlsafeb64_decodable
  • is_base64_decodable
  • is_unhexlifiable
  • text_display_length
  • text_display_shorten
  • smart_get_binary_data
  • is_chinese_character
  • binarify
  • unbinarify
  • ints2bytes
  • int2bytes
• threadutils
  • Service
  • ServiceBase
• typingutils

Help

Mostly get help by help( ... ) in ipython

Example

In [9]: from fastutils import strutils

In [10]: help(strutils.random_string)
Help on function random_string in module fastutils.strutils:

random_string(length, choices='abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ')

Some function using *args, **kwargs paramters, see help below.

cipherutils.IvCipher

Instance Init Parameters

• password: required.

cipherutils.IvfCipher

Instance Init Parameters

• password: required.
• encoder: default to cipherutils.RawDataEncoder(), choices are: cipherutils.HexlifyEncoder(), cipherutils.Base64Encoder(), cipherutils.SafeBase64Encoder().
• kwargs: dict type.
  • int_digits: default to 12
  • float_digits: default to 4

Note

• When float_digits=0, the plain number is treat as integer value.

cipherutils.AesCipher

Instance Init Parameters

• password: required.
• encoder: default to cipherutils.RawDataEncoder(), choices are: cipherutils.HexlifyEncoder(), cipherutils.Base64Encoder(), cipherutils.SafeBase64Encoder()
• kwargs: dict type.
  • padding: default to cipherutils.aes_padding_pkcs5.
  • key: default to cipherutils.sha1prng_key.
  • mode: default to AES.MODE_ECB (from Crypto.Cipher import AES).

Example

In [1]: from fastutils import cipherutils

In [2]: cipher = cipherutils.AesCipher(password="testpwd", encoder=cipherutils.HexlifyEncoder(), kwargs={"key": cipherutils.mysql_aes_key}, force_text=True)
   ...:

In [3]: text1 = "test content"

In [4]: text2 = cipher.encrypt(text1)

In [5]: print(text2)
299aa4e15a40d69e56674a94d9b66cc3

In [6]: text3 = cipher.decrypt(text2)

In [7]: print(text3)
test content

In [8]: text1 == text3
Out[8]: True

In [9]:

Bug report

Please report any issues at https://github.com/zencore-cn/zencore-issues.

Releases

v0.13.3 2020-07-11

• Add randomutils.shuffle.
• Change randomutils.randint parameters from (max, min=0) to (a, b=None).

v0.13.2 2020-07-10

• Add listutils.group.
• Add rsautils.export_key. And rsautils use Crypto.PublicKey.RSA for the base engine.

v0.13.1 2020-07-01

• Add strutils.force_float and strutils.force_numeric.
• Add typingutils.cast_numeric support.

v0.13.0 2020-06-26

• IvfCihper accept integer value when float_digits=0.
• Fix IvfCihper deviation problem which is caused by wrong module used in decrypt.
• IvfCihper use new algorithm in computing module and max_value, so that result encrypted by version v0.12.0 can not decrypted by version v0.13.0.

v0.12.0 2020-06-25

• Add IvfCihper for float number encrypt and decrypt. The output of IvfCipher.encrypt is string.

v0.11.1 2020-06-23

• Use class instead of raw api for s12 and iv ciphers. It's can avoid many times in generating seeds.

v0.11.0 2020-06-20

• Add cipherutils.
• Add strutils.binarify and strutils.unbinarify.
• Add randomutils.Random.
• Change aesutils functions' return type. Note: use cipherutils instead.

v0.10.1 2020-05-19

• Add bizerror dependency.

v0.10.0 2020-04-23

• Add strutils.is_chinese_character to test if the character is a chinese character.
• Add cacheutils.get_cached_value to get or set cached value.

v0.9.0 2020-03-05

• Add listutils.append_new to append new value and only new value to the list.

v0.8.0 2020-01-15

• Add strutils.smart_get_binary_data.
• Add rsautils.

v0.7.0 2020-01-14

• Add hashutils.get_file_hash.
• Add extra install requires for python 2.x.
• Add imageutils.parse_base64image and imageutils.get_image_bytes.
• Fix jsonutils.make_simple_json_encoder ignore bases problem.

v0.6.0 2020-01-07

• Add imageutils, add imageutils.get_base64image to make base64 image that can be rendered by web browser.
• Add imageutils.resize to scale image size.
• Add Image-Object-Encode support in jsonutils.
• Add threadutils, add threadutils.Service to simplify long-run-service programming.
• Raise bizerror.MissingParameter error in funcutils.get_inject_params while missing required parameter.

v0.5.4 2019-12-10

• Fix hashutils.get_hash_hexdigest and hashutils.get_hash_base64 problem.

v0.5.3 2019-12-08

• Using typingutils.smart_cast in funcutils.get_inject_params.

v0.5.2 2019-12-08

• Add unit test cases for typingutils.
• Fix cast_list, do strip for every element in comma-separated-list.
• Fix base64 import missing in typingutils.

v0.5.1 2019-12-08

• Add typingutils.cast_str.

v0.5.0 2019-12-08

• Set library property in get_encoder in jsonutils.
• Add typingutils.

v0.4.0 2019.12.07

• Add jsonutils, provides simple json encoder register system.

v0.3.2 2019.10.29

• Fix problems for python 2.7.
• Fix name error of funcutils.

v0.3.1 2019.10.28

• Fix problem casued by str.isascii() which is new from python 3.7.

v0.3.0 2019.09.24

• Add listutils.unique to remove duplicated elements from the list.
• Add listutils.replace to replace element value in thelist with new_value in collection of map.

v0.2.0 2019.09.10

• Add functuils.get_inject_params to smartly choose parameters from candidates by determine with the function's signature.
• Add functuils.call_with_inject to smartly call the function by smartly choose parameters.

v0.1.1 2019.08.27

• Add strutils.wholestrip function, use to remove all white spaces in text.
• Fix strutils.is_urlsafeb64_decodable, strutils.is_base64_decodable and strutils.is_unhexlifiable functions, that have problem to test text contains whitespaces.

v0.1.0 2019.08.23

• Add simple utils about operations of aes, dict, hash, list and str.