Python中的错误挑选：io.UnsupportedOperation：读取

Question

我正在尝试学习pickle如何在python中保存对象。但是，当我使用下面的sample code时，我收到以下错误：io.UnsupportedOperation: read跟踪回favorite_color = pickle.load(f_myfile)。我找不到这个特殊错误的好解释。我做错了什么，如何纠正？

import pickle  # or import cPickle as pickle

# Create dictionary, list, etc.
favorite_color = { "lion": "yellow", "kitty": "red" }

# Write to file
f_myfile = open('myfile.pickle', 'wb')
pickle.dump(favorite_color, f_myfile)
f_myfile.close()

# Read from file
f_myfile = open('myfile.pickle', 'wb')
favorite_color = pickle.load(f_myfile)  # variables come out in the order you put them in
f_myfile.close()

Answer 1

变化：

# Read from file 
f_myfile = open('myfile.pickle', 'wb')

到：

f_myfile = open('myfile.pickle', 'rb')

你可以看到你腌制的dict obj。