American Heritage Dictionary
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Century Dictionary
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GNU Webster's 1913
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WordNet
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Elsewhere on the web
Check which version of python is the default by running python - V— Muti
The wolf, python, and rascal she sent out seemed frightened of the trade mark Day-Glo lights, elephantine mob, and fortissimo music.— The Oregon Catalyst
They were a couple of pythons, and the larger of the two, a female, was ten feet long; but the python is a harmless creature While they were talking, smoke was observed to rise from an isolated clump of long grass and bushes not far from the banks of the river, much to the annoyance of Kambira, who feared that the fire might spread and scare away the game.— Black Ivory
It gorges itself like a python, and when hooked is as game as a salmon, and quite as vigorous in proportion to size.— Lippincott's Magazine of Popular Literature and Science October, 1877. Vol XX - No. 118

American Heritage Dictionary (1)
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You can expect to see this word a few times a month.