Represent 1.4.1

Create __repr__ automatically or declaratively.

Installation

$ pip install represent

Automatic Generation

from represent import ReprMixin


class Rectangle(ReprMixin, object):
    def __init__(self, name, color, width, height):
        self.name = name
        self.color = color
        self.width = width
        self.height = height

        super(Rectangle, self).__init__()

rect = Rectangle('Timothy', 'red', 15, 4.5)
print(rect)

Rectangle(name='Timothy', color='red', width=15, height=4.5)

Declarative Generation

from represent import ReprHelperMixin


class ContrivedExample(ReprHelperMixin, object):
    def __init__(self, description, radians, shape, color, miles):
        self.description = description
        self.degrees = radians * 180 / 3.141592654
        self.shape = shape
        self._color = color
        self.km = 1.60934 * miles

    def _repr_helper_(self, r):
        r.positional_from_attr('description')
        r.positional_with_value(self.degrees * 3.141592654 / 180)
        r.keyword_from_attr('shape')
        r.keyword_from_attr('color', '_color')
        r.keyword_with_value('miles', self.km / 1.60934)

ce = ContrivedExample('does something', 0.345, 'square', 'red', 22)

print(ce)
from IPython.lib.pretty import pprint
pprint(ce)

ContrivedExample('does something', 0.345, shape='square', color='red', miles=22.0)
ContrivedExample('does something',
                 0.345,
                 shape='square',
                 color='red',
                 miles=22.0)

For pretty printer support and more information, visit the documentation!