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47 lines
782 B
Python
47 lines
782 B
Python
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"""
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An auto incremeting value (kind of like an AUTO INCREMENT field in SQL).
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Optionally, the name of the counter to be used is specified (each counter
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increments separately).
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Counts start at 1, not 0.
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"""
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from collections import defaultdict
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__all__ = [
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'next',
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'reset',
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'reset_all',
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'counter',
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]
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__counters = defaultdict(int)
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def next(name=None):
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__counters[name] += 1
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value = __counters[name]
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return value
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def reset_all(value=0):
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for k in __counters:
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reset(k, value)
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def reset(name=None, value=0):
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__counters[name] = value
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class counter(object):
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def __init__(self, name):
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self.name = name
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def next(self):
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return next(self.name)
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def reset(self, value=0):
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return reset(self.name, value)
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