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28 lines
742 B
Python
28 lines
742 B
Python
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"""General shared utilities."""
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import logging
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from itertools import tee
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try:
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from itertools import zip_longest
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except ImportError:
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from itertools import izip_longest as zip_longest
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# Do not update the version manually - it is managed by `bumpversion`.
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__version__ = '3.0.0'
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log = logging.getLogger(__name__)
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def is_blank(string):
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"""Return True iff the string contains only whitespaces."""
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return not string.strip()
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def pairwise(iterable, default_value):
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"""Return pairs of items from `iterable`.
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pairwise([1, 2, 3], default_value=None) -> (1, 2) (2, 3), (3, None)
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"""
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a, b = tee(iterable)
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_ = next(b, default_value)
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return zip_longest(a, b, fillvalue=default_value)
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