TypeError:需要一个类似字节的对象,而在Python 3中打开Python 2 Pickle文件时不是'str' [英] TypeError: a bytes-like object is required, not 'str' when opening Python 2 Pickle file in Python 3
问题描述
我正在尝试使用在Python 2中可以运行的代码在Python 3中打开一个pickle文件,但是现在却给我一个错误.这是代码:
I am trying to open a pickle file in Python 3 with code that worked in Python 2 but is now giving me an error. Here is the code:
with open(file, 'r') as f:
d = pickle.load(f)
TypeError Traceback (most recent call last)
<ipython-input-25-38f711abef06> in <module>()
1 with open(file, 'r') as f:
----> 2 d = pickle.load(f)
TypeError: a bytes-like object is required, not 'str'
在其他SO答案上,我看到人们在使用open(file ,'rb')
并切换到open(file ,'r')
时会遇到此问题,从而解决了该问题.如果这有帮助,我尝试open(file ,'rb')
只是为了进行实验,并收到以下错误:
I saw on other SO answers that people had this problem when using open(file ,'rb')
and switching to open(file ,'r')
fixed it. If this helps, I tried open(file ,'rb')
just to experiment and got the following error:
UnpicklingError Traceback (most recent call last)
<ipython-input-26-b77842748a06> in <module>()
1 with open(file, 'rb') as f:
----> 2 d = pickle.load(f)
UnpicklingError: invalid load key, '\x0a'.
当我使用f = open(file, 'r')
打开文件并输入f
时,我得到:
When I open the file with f = open(file, 'r')
and the enter f
I get:
<_io.TextIOWrapper name='D:/LargeDataSets/Enron/final_project_dataset.pkl' mode='r' encoding='cp1252'>
所以我也尝试过:
with open(file, 'rb') as f:
d = pickle.load(f, encoding='cp1252')
并得到与使用'rb'相同的错误:
and got the same error as with using 'rb':
UnpicklingError Traceback (most recent call last)
<ipython-input-27-959b1b0496d0> in <module>()
1 with open(file, 'rb') as f:
----> 2 d = pickle.load(f, encoding='cp1252')
UnpicklingError: invalid load key, '\x0a'.
推荐答案
在Sublime中浏览原始文件后,似乎未正确地对文件进行酸洗.上面的代码可以完美地在该文件的其他版本上使用.
After digging through the raw file in Sublime, it looks like the file was not correctly pickled. The above code works perfectly on a different version of that file.
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