python - cPickle 下溢错误

Question

我正在尝试使用 cPickle 加载文件，如下所示，

import cPickle

cPickle.load(open('test', 'rb'))

但是，我收到此错误，

---------------------------------------------------------------------------
UnpicklingError                           Traceback (most recent call last)
<ipython-input-527-1b7653ff1917> in <module>()
----> 1 cPickle.load(open('test', 'rb'))

UnpicklingError: unpickling stack underflow

有时它会发出这个错误

UnpicklingError: could not find MARK

我得到这个有什么理由吗？

PS：cPickle 不能与我一起处理任何文件，即使是新创建的只包含两个单词的文件。我正在使用 ubuntu 12.04 和 Python 64bit

Answer 1

试试这个它为我修复了错误：

import pickle
import pandas as pd


# read in csv file to pandas dataframe and save as pickle file
training_data = pd.read_csv('train.csv')
pickle_out = open('train.pkl', 'wb')
pickle.dump(training_data, pickle_out)
pickle_out.close() 


# open pickle file
file = 'train.pkl'
with open(file, 'rb') as f:
    training_data = pickle.load(f)