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Project Description

About

Whatami is an attempt to abstract configurability and experiment identifiability in a convenient way. It does so by leveraging object introspection and defining a simple, flexible and consistent API that python objects can adhere to, even if they were not originally designed to do it.

It works this way:

  • Objects provide their own ids based on parameters=value dictionaries. They do so by returning an instance of the What class from a method called “what()”.
  • Optionally, this package provides a whatable decorator to provide automatic creation of What objects from objects dictionaries, slots and properties. All attributes will be considered part of the configuration, except for those whose names start or end by ‘_’.

The id strings

They aim to look like they would be generated if __repr__ in python was always implemented taking into account recursion and exposing only result-changing parameters. They pretty much look like python function calls with nested parameters expanded to look like python calls themselves.

Features

  • Represent your computations as standardized ID strings.
  • Pluggable architecture.
  • ID strings can be parsed and manipulated.
  • “whatamise” your library. Included support for:
  • Convenience functions for data tidying.

Example

Whatami is simple but powerful. This example just shows its surface and better docs are coming, but in the meantime, just check the docstrings and unit tests.

# Objects of this class provide a configuration (`What` object)
class DuckedConfigurable(object):
    def __init__(self, quantity, name, company=None, verbose=True):
       self.quantity = quantity
       self.name = name
       self.company = company
       self.verbose = verbose

    def what(self):
        return What('ducked', {'quantity': self.quantity, 'name': self.name, 'company': self.company})

duckedc = DuckedConfigurable(33, 'salty-lollypops', verbose=False)

# The configuration id string sorts by key alphanumeric order, helping id consistency
print duckedc.what().id()
# ducked(company=None,name='salty-lollypops',quantity=33)

# Using the whatable decorator makes objects gain a what() method;
# in this case, what() is infered automatically
@whatable
class Company(object):
    def __init__(self, name, city, verbose=True):
        super(Company, self).__init__()
        self.name = name
        self.city = city
        self._verbose = verbose  # not part of config
        self.social_reason_ = '%s S.A., %s' % (name, city)  # not part of config
cc = Company(name='Chupa Chups', city='Barcelona')
print(cc.what().id())
# Company(city='Barcelona',name='Chupa Chups')

# Ultimately, we can nest whatables...
duckedc = DuckedConfigurable(33, 'salty-lollypops', company=cc, verbose=False)
print duckedc.what().id()
# ducked(company=Company(city='Barcelona',name='Chupa Chups'),name='salty-lollypops',quantity=33)

# We can also decorate functions and partials - use with caution
@whatable
def buy(company, price=2**32, currency='euro'):
    return '%s is now mine for %g %s' % (company.name, price, currency)
print buy.what().id()
# buy(currency='euro',price=4294967296)

Versioning

Since release 4.0.0 whatami uses semantic versioning, where a major version bump happens also if the default id strings can be generated differently, even if no API actually changes.

Release History

Release History

5.1.9

This version

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5.1.8.dev0

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5.1.6

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5.1.5

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5.1.4

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5.1.3

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5.1.2

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5.1.1

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5.1.0

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5.0.0

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4.0.5

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4.0.4

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4.0.3

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4.0.2

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4.0.1

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4.0.0

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3.0.0

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2.0.0

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1.0.4

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1.0.3

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1.0.2

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1.0.1

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1.0.0

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Download Files

Download Files

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File Name & Checksum SHA256 Checksum Help Version File Type Upload Date
whatami-5.1.9.tar.gz (56.3 kB) Copy SHA256 Checksum SHA256 Source Dec 9, 2016

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