使用Python从字典与列表值组合 [英] Combinations from dictionary with list values using Python
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问题描述
我有以下传入值:
variants = {
"debug" : ["on", "off"],
"locale" : ["de_DE", "en_US", "fr_FR"],
...
}
我想处理它们,所以我得到以下结果:
I want to process them so I get the following result:
combinations = [
[{"debug":"on"},{"locale":"de_DE"}],
[{"debug":"on"},{"locale":"en_US"}],
[{"debug":"on"},{"locale":"fr_FR"}],
[{"debug":"off"},{"locale":"de_DE"}],
[{"debug":"off"},{"locale":"en_US"}],
[{"debug":"off"},{"locale":"fr_FR"}]
]
字典中任意长度的键。在Python中使用itertools,但没有找到符合这些要求的内容。
This should work with arbitrary length of keys in the dictionary. Played with itertools in Python, but did not found anything matching these requirements.
推荐答案
import itertools as it
varNames = sorted(variants)
combinations = [dict(zip(varNames, prod)) for prod in it.product(*(variants[varName] for varName in varNames))]
嗯,这返回:
[{'debug': 'on', 'locale': 'de_DE'},
{'debug': 'on', 'locale': 'en_US'},
{'debug': 'on', 'locale': 'fr_FR'},
{'debug': 'off', 'locale': 'de_DE'},
{'debug': 'off', 'locale': 'en_US'},
{'debug': 'off', 'locale': 'fr_FR'}]
这可能不完全是你想要的。让我适应...
which is probably not exactly, what you want. Let me adapt it...
combinations = [ [ {varName: val} for varName, val in zip(varNames, prod) ] for prod in it.product(*(variants[varName] for varName in varNames))]
现在返回:
[[{'debug': 'on'}, {'locale': 'de_DE'}],
[{'debug': 'on'}, {'locale': 'en_US'}],
[{'debug': 'on'}, {'locale': 'fr_FR'}],
[{'debug': 'off'}, {'locale': 'de_DE'}],
[{'debug': 'off'}, {'locale': 'en_US'}],
[{'debug': 'off'}, {'locale': 'fr_FR'}]]
Voilà; - )
Voilà ;-)
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