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Speed-up lazy heapq import in collections (gh-127538)

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Raymond Hettinger 2024-12-02 20:45:36 -06:00 • committed by GitHub
parent bfb0788bfc
commit dffb90911a
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1 changed files with 6 additions and 1 deletions
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7
Lib/collections/__init__.py
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@ -59,6 +59,8 @@ try:
except ImportError: except ImportError:
pass pass
heapq = None # Lazily imported
################################################################################ ################################################################################
### OrderedDict ### OrderedDict
@ -633,7 +635,10 @@ class Counter(dict):
return sorted(self.items(), key=_itemgetter(1), reverse=True) return sorted(self.items(), key=_itemgetter(1), reverse=True)
# Lazy import to speedup Python startup time # Lazy import to speedup Python startup time
import heapq global heapq
if heapq is None:
import heapq
return heapq.nlargest(n, self.items(), key=_itemgetter(1)) return heapq.nlargest(n, self.items(), key=_itemgetter(1))
def elements(self): def elements(self):