[英]Counting values in a dictionary that are greater than a certain number in Python?
[英]keeping dictionary values greater than length of five
d = {'key1':['hello', 'ab', 'a', 'morning', 'sunset', 'metaphysics'],
'key2':['hi', 'morning', 'sunset', 'metaphysics'],
'key3':['hey', 'sunset', 'metaphysics']}
我有一个命令d
,我只想保留长度为5或更大的那些元素。 所以我希望我的输出是
d = {'key1':['hello', 'morning', 'sunset', 'metaphysics'],
'key2':['morning', 'sunset', 'metaphysics'],
'key3':['sunset', 'metaphysics']}
我在这里查看了如何查找字典值的长度,但这确实有很大帮助。
有人可以帮忙吗?
d = {'key1':['hello', 'ab', 'a', 'morning', 'sunset', 'metaphysics'],
'key2':['hi', 'morning', 'sunset', 'metaphysics'],
'key3':['hey', 'sunset', 'metaphysics']}
for key, val in d.items():
d[key] = [v for v in val if len(v) > 4]
print (d)
{'key1':['hello','morning','sunset','metaphysics'],'key2':['morning','sunset','metaphysics'],'key3':['sunset', '形而上学']}
仅使用理解力。
d = {'key1':['hello', 'ab', 'a', 'morning', 'sunset', 'metaphysics'],
'key2':['hi', 'morning', 'sunset', 'metaphysics'],
'key3':['hey', 'sunset', 'metaphysics']}
d = {key: [v for v in value if len(v) >4] for key, value in d.items()}
print(d)
{'key1':['hello','morning','sunset','metaphysics'],'key2':['morning','sunset','metaphysics'],'key3':['sunset', '形而上学']}
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