# Save a dictionary into a pickle file.
import pickle
favorite_color = {"lion": "yellow", "kitty": "red"} # create a dictionary
pickle.dump(favorite_color, open("save.p", "wb")) # save it into a file named save.p
# -------------------------------------------------------------
# Load the dictionary back from the pickle file.
import pickle
favorite_color = pickle.load(open("save.p", "rb"))
# favorite_color is now {"lion": "yellow", "kitty": "red"}
import pickle
a = {'hello': 'world'}
with open('filename.pickle', 'wb') as handle:
pickle.dump(a, handle, protocol=pickle.HIGHEST_PROTOCOL)
with open('filename.pickle', 'rb') as handle:
b = pickle.load(handle)
print a == b
import pickle
your_data = {'foo': 'bar'}
# Store data (serialize)
with open('filename.pickle', 'wb') as handle:
pickle.dump(your_data, handle, protocol=pickle.HIGHEST_PROTOCOL)
# Load data (deserialize)
with open('filename.pickle', 'rb') as handle:
unserialized_data = pickle.load(handle)
print(your_data == unserialized_data)
试试这个:
HIGHEST_PROTOCOL
的优点是文件变小。这有时会使脱粘更快。重要提示:pickle的最大文件大小约为2GB。
替代方式
替代格式
对于您的应用程序,以下内容可能很重要:
另请参见:Comparison of data serialization formats
如果您正在寻找创建配置文件的方法,那么您可能需要阅读我的短文Configuration files in Python
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