[英]Type Error : Unhashable type: 'slice' [python] [dictionaries]
os.chdir("Güvenlik_Hesaplar")
files = ''
dictionary = {}
ant = os.listdir()
dict_number = 1
i = 0
while i < len(ant): # If the variable 'i' is less than the length of my files
dictionary["{}" : ant[i].format(dict_number)] #e.g = '1': 'myfile.txt'
dict_number += 1
i += 1
Error:错误:
File "C:\Users\Barış\Desktop\Python\prg.py", line 20, in passwordrequest
dictionary["{}" : ant[i].format(dict_number)]
TypeError: unhashable type: 'slice'
Can you help me to solve this, please?你能帮我解决这个问题吗? I am using Windows x64我正在使用 Windows x64
Here is a better way to do it:这是一个更好的方法:
import os
os.chdir("Güvenlik_Hesaplar")
dictionary = {str(k + 1): filename for k, filename in enumerate(os.listdir())}
If you want to just add an entry in dictionary
with dict_number
as key and ant[i]
as value, you can just do -如果您只想在dictionary
中添加一个条目,其中dict_number
作为键, ant[i]
作为值,您可以这样做 -
while i < len(ant):
dictionary[str(dict_number)] = ant[i]
....
The problem in your code dictionary["{}": ant[i].format(dict_number)]
is that "{}": ant[i]....
is treated as a slice and that is used to fetch value from dictionary
.您的代码dictionary["{}": ant[i].format(dict_number)]
中的问题是"{}": ant[i]....
被视为一个切片,用于从中获取值dictionary
。 To fetch it, the key (ie "{}": ant[i]...
) is hashed first.要获取它,首先对密钥(即"{}": ant[i]...
)进行哈希处理。 So, python is throwing the error.因此, python 抛出错误。
You can remove dict_number
from your code as it is always i
+ 1. This can be done using enumerate
and for loop.您可以从代码中删除dict_number
,因为它始终为i
+ 1。这可以使用enumerate
和 for 循环来完成。
for dict_number, file in enumerate(ant, start=1):
dictionary[str(dict_number)] = file
Here enumerate
returns the index as well as the element of the list ant
and start=1
will enforce that the index will start from 1.这里enumerate
返回索引以及列表ant
的元素,并且start=1
将强制索引从 1 开始。
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