不能检查一个字符串是否存在于字典[python]中

Question

我有一个python字典，它包括200个键，每个键有长字符串和几行作为值

字典示例

var_holder = {
"text0": 'MontgomerynnBirmingham Juneau. PhoenixnnSacramento ,nChicagonnSpringfield: Atlantanx0c'
}

我需要什么检查这些值是否包含某个单词

我做了什么

value = 'Phoenix'
if any([True for k,v in var_holder.items() if v == value]):
print(f"Yes, Value: '{value}' exists in dictionary")
else:
print(f"No, Value: '{value}' does not exists in dictionary")

输出不，值:'Phoenix'在字典中不存在

预期输出是，值:'Phoenix'在字典中存在

有人能纠正我的代码吗?或者建议另一种方法

Answer 1

您应该使用in来查找字符串中的值，而不是==比较。

var_holder = {
"text0": 'MontgomerynnBirmingham Juneau. PhoenixnnSacramento ,nChicagonnSpringfield: Atlantanx0c'
}
value = 'Phoenix'
if any(value in v for v in var_holder.values()):
print(f"Yes, Value: '{value}' exists in dictionary")
else:
print(f"No, Value: '{value}' does not exists in dictionary")

Answer 2

我建议你这样做:

var_holder = {
"text0": 'MontgomerynnBirmingham Juneau. PhoenixnnSacramento ,nChicagonnSpringfield: Atlantanx0c'
}
value = 'Phoenix'
gen = (v for v in var_holder.values() if value in v)
if gen:
print(f"Yes, Value: '{value}' exists in dictionary")
else:
print(f"No, Value: '{value}' does not exists in dictionary")

Answer 3

看看

var_holder = {
"text0": 'MontgomerynnBirmingham Juneau. PhoenixnnSacramento ,nChicagonnSpringfield: Atlantanx0c'
}
value = 'Phoenix'
if any(value in x for x in var_holder.values()):
print(f"Yes, Value: '{value}' exists in dictionary")
else:
print(f"No, Value: '{value}' does not exists in dictionary")