使用字典理解规范概率

Question

我的python字典看起来像

probabilities = {'harry': {'gene': {0: 0.23, 1: 0.09, 2: 0.13}, 'trait': {False: 0.23, True: 0.32}},
'jim': {'gene': {0: 0.12, 1: 0.15, 2: 0.56}, 'trait': {False: 0.67, True: 0.12}}}

我通过编写类似的代码来规范它

for person in probabilities:
for attribute in probabilities[person]:
denominator = sum(probabilities[person][attribute].values())
for value in probabilities[person][attribute]:
probabilities[person][attribute][value] /= denominator

代码是可以的，因为它完美地规范了概率。但是我能用字典理解做同样的事情吗？如果是，如何？如果没有，为什么？

Answer 1

一点努力让我想到：

probabilities = {'harry': {'gene': {0: 0.23, 1: 0.09, 2: 0.13}, 'trait': {False: 0.23, True: 0.32}},
'jim': {'gene': {0: 0.12, 1: 0.15, 2: 0.56}, 'trait': {False: 0.67, True: 0.12}}}
probabilities_new = {
p: {
k: {
k_inn: v_inn / sum(v.values())
for k_inn, v_inn in v.items()
}
for k, v in a.items()
}
for p, a in probabilities.items()
}