Utilities¶

sample_data_utils.utils.infinite()[source]¶

auto inc generator

sample_data_utils.utils.memoize(func)[source]¶

Decorator that stores function results in a dictionary to be used on the next time that the same arguments were informed.

sample_data_utils.utils.sequence(prefix, cache=None)[source]¶

generator that returns an unique string

Parameters:	prefix – prefix of string cache – cache used to store the last used number

>>> next(sequence('abc'))
'abc-0'
>>> next(sequence('abc'))
'abc-1'

sample_data_utils.utils.unique(func, num_args=0, max_attempts=100, cache=None)[source]¶

wraps a function so that produce unique results

Parameters:	func – num_args –

>>> import random
>>> choices = [1,2]
>>> a = unique(random.choice, 1)
>>> a,b = a(choices), a(choices)
>>> a == b
False