b3j0f.utils 0.9

Set of tools and utilities useful in python projects

Description

Common tools useful to python projects.

Links

• Homepage

• PyPI

• Documentation

Installation

pip install b3j0f.utils

Features

This library provides a set of generic tools in order to ease development of projects in python >= 2.6.

Provided tools are:

• chaining: chain object methods calls in a dedicated Chaining object. Such method calls return the Chaining object itself, allowing multiple calls to object methods to be invoked in a concise statement.

• iterable: tools in order to manage iterable elements.

• path: python object path resolver, from object to absolute/relative path or the inverse.

• property: (un)bind/find properties in reflective and oop concerns.

• reflect: tools which ease development with reflective concerns.

• runtime: ease runtime execution.

• proxy: create proxy (from design pattern) objects from a routine or an object which respects the signature and description of the proxified element.

• ut: improve unit tests.

• version: ease compatibility between python version (from 2.x to 3.x).

Examples

Chaining

>>> # add characters to a string in one line
>>> from b3j0f.utils.chaining import Chaining, ListChaining
>>> c = Chaining("te").__iadd__("s").__iadd__("t")
>>> # display content of Chaining
>>> c._
test
>>> # call several strings operations on several strings and get operation results in one line
>>> ListChaining("Test", "Example").upper().lower()[:]
[["TEST", "EXAMPLE"], ["test", "example"]]

Iterable

>>> from b3j0f.utils.iterable import is_iterable, first
>>> is_iterable(1)
False
>>> is_iterable("aze")
True
>>> is_iterable("aze", exclude=str)
False

>>> first("aze")
"a"
>>> first("", default="test")
"test"

Path

>>> from b3j0f.utils.path import lookup, getpath
>>> getpath(lookup)
"b3j0f.utils.path.lookup"
>>> getpath(lookup("b3j0f.utils.path.getpath"))
"b3j0f.utils.path.getpath"

Property

>>> from b3j0f.utils.property import put_properties, get_properties, del_properties
>>> put_properties(min, {'test': True})
>>> get_properties(min)
{'test': True}
>>> del_properties(min)
>>> get_properties(min)
None

Reflect

>>> from b3j0f.utils.reflect import base_elts, is_inherited
>>> class BaseTest(object):
>>>     def test(self): pass
>>> class Test(BaseTest): pass
>>> class FinalTest(Test): pass
>>> base_elts(FinalTest().test, depth=1)[-1].im_class.__name__
Test
>>> base_elts(FinalTest().test)[-1].im_class.__name__
BaseTest

>>> is_inherited(FinalTest.test)
True
>>> is_inherited(BaseTest.test)
False

Proxy

>>> from b3j0f.utils.proxy import get_proxy, proxified_elt
>>> l = lambda: 2
>>> proxy = get_proxy(l, lambda: 3)
>>> proxy()
3
>>> assert proxified_elt(proxy) is l
True
>>> proxified_elt(proxy)()
2
>>> proxy = get_proxy(l)
>>> proxy()
2
>>> assert proxy is not l
>>> assert proxified_elt(proxy) is l

Perspectives

• wait feedbacks during 6 months before passing it to a stable version.

• Cython implementation.

Donation