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- from distutils.dep_util import newer_group
- # yes, this is was almost entirely copy-pasted from
- # 'newer_pairwise()', this is just another convenience
- # function.
- def newer_pairwise_group(sources_groups, targets):
- """Walk both arguments in parallel, testing if each source group is newer
- than its corresponding target. Returns a pair of lists (sources_groups,
- targets) where sources is newer than target, according to the semantics
- of 'newer_group()'.
- """
- if len(sources_groups) != len(targets):
- raise ValueError("'sources_group' and 'targets' must be the same length")
- # build a pair of lists (sources_groups, targets) where source is newer
- n_sources = []
- n_targets = []
- for i in range(len(sources_groups)):
- if newer_group(sources_groups[i], targets[i]):
- n_sources.append(sources_groups[i])
- n_targets.append(targets[i])
- return n_sources, n_targets
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