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Project Description

NeoBunch

Upgrading from bunch to neobunch

This is a fork of the abandoned bunch package. It differs in name only and remains otherwise compatible with the original package.

If you previously used bunch, change the following names to upgrade:

  • Module: bunch -> neobunch
  • Class: bunch.Bunch -> neobunch.NeoBunch
  • Function: bunch.bunchify -> neobunch.neobunchify
  • Function: bunch.unbunchify -> neobunch.unneobunchify

The following legacy aliases exist to make upgrading easier:

  • Class: bunch.Bunch -> neobunch.Bunch
  • Function: bunch.bunchify -> neobunch.bunchify
  • Function: bunch.unbunchify -> neobunch.unbunchify

Usage

NeoBunch is a dictionary that supports attribute-style access, a la JavaScript.

>>> b = NeoBunch()
>>> b.hello = 'world'
>>> b.hello
'world'
>>> b['hello'] += "!"
>>> b.hello
'world!'
>>> b.foo = NeoBunch(lol=True)
>>> b.foo.lol
True
>>> b.foo is b['foo']
True

Dictionary Methods

A NeoBunch is a subclass of dict; it supports all the methods a dict does:

>>> b.keys()
['foo', 'hello']

Including update():

>>> b.update({ 'ponies': 'are pretty!' }, hello=42)
>>> print repr(b)
NeoBunch(foo=NeoBunch(lol=True), hello=42, ponies='are pretty!')

As well as iteration:

>>> [ (k,b[k]) for k in b ]
[('ponies', 'are pretty!'), ('foo', NeoBunch(lol=True)), ('hello', 42)]

And “splats”:

>>> "The {knights} who say {ni}!".format(**NeoBunch(knights='lolcats', ni='can haz'))
'The lolcats who say can haz!'

Serialization

NeoBunches happily and transparently serialize to JSON and YAML.

>>> b = NeoBunch(foo=NeoBunch(lol=True), hello=42, ponies='are pretty!')
>>> import json
>>> json.dumps(b)
'{"ponies": "are pretty!", "foo": {"lol": true}, "hello": 42}'

If JSON support is present (json or simplejson), NeoBunch will have a toJSON() method which returns the object as a JSON string.

If you have PyYAML installed, NeoBunch attempts to register itself with the various YAML Representers so that NeoBunches can be transparently dumped and loaded.

>>> b = NeoBunch(foo=NeoBunch(lol=True), hello=42, ponies='are pretty!')
>>> import yaml
>>> yaml.dump(b)
'!neobunch.NeoBunch\nfoo: !neobunch.NeoBunch {lol: true}\nhello: 42\nponies: are pretty!\n'
>>> yaml.safe_dump(b)
'foo: {lol: true}\nhello: 42\nponies: are pretty!\n'

In addition, NeoBunch instances will have a toYAML() method that returns the YAML string using yaml.safe_dump(). This method also replaces __str__ if present, as I find it far more readable. You can revert back to Python’s default use of __repr__ with a simple assignment: NeoBunch.__str__ = NeoBunch.__repr__. The NeoBunch class will also have a static method NeoBunch.fromYAML(), which loads a NeoBunch out of a YAML string.

Finally, NeoBunch converts easily and recursively to (unneobunchify(), NeoBunch.toDict()) and from (neobunchify(), NeoBunch.fromDict()) a normal dict, making it easy to cleanly serialize them in other formats.

Miscellaneous

  • It is safe to import * from this module. You’ll get: NeoBunch, neobunchify, and unneobunchify.

  • Ample doctests:

    $ python -m neobunch.test
    $ python -m neobunch.test -v | tail -n22
    1 items had no tests:
        neobunch.fromYAML
    16 items passed all tests:
       8 tests in neobunch
      13 tests in neobunch.NeoBunch
       7 tests in neobunch.NeoBunch.__contains__
       4 tests in neobunch.NeoBunch.__delattr__
       7 tests in neobunch.NeoBunch.__getattr__
       3 tests in neobunch.NeoBunch.__repr__
       5 tests in neobunch.NeoBunch.__setattr__
       2 tests in neobunch.NeoBunch.fromDict
       2 tests in neobunch.NeoBunch.toDict
       5 tests in neobunch.neobunchify
       2 tests in neobunch.from_yaml
       3 tests in neobunch.toJSON
       6 tests in neobunch.toYAML
       3 tests in neobunch.to_yaml
       3 tests in neobunch.to_yaml_safe
       4 tests in neobunch.unneobunchify
    77 tests in 17 items.
    77 passed and 0 failed.
    Test passed.
    
Release History

Release History

2.0.2

This version

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2.0.1

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2.0.0

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Download Files

Download Files

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File Name & Checksum SHA256 Checksum Help Version File Type Upload Date
neobunch-2.0.2-py2.py3-none-any.whl (10.5 kB) Copy SHA256 Checksum SHA256 3.4 Wheel Nov 23, 2015

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