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• krakatau-lib
• 1.0.1
• source code
• namegen.py

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Lib.Krakatau.namegen.py Maven / Gradle / Ivy

import itertools, collections

class NameGen(object):
    def __init__(self, reserved=frozenset()):
        self.counters = collections.defaultdict(itertools.count)
        self.names = set(reserved)

    def getPrefix(self, prefix, sep=''):
        newname = prefix
        while newname in self.names:
            newname = prefix + sep + str(next(self.counters[prefix]))        
        self.names.add(newname)
        return newname

def LabelGen(prefix='label'):
    for i in itertools.count():
        yield prefix + str(i)