How to use the pickle module to deserialize strings into Python objects in Python 2.x

There is a very convenient module in Python called pickle, which can serialize Python objects into strings and deserialize this string into Python objects. This module can help us save data and status in the program for later use and recovery. Next I'll show you how to use the pickle module to deserialize strings into Python objects.

First, we need to import the pickle module. In Python 2.x, this can be achieved using the following code:

import pickle

Next, we need to define a string, which is the object we want to deserialize. Suppose we have the following string:

data_string = "(i13
(VHello, World!
p0
."

Next, we can use the loads function of the pickle module to deserialize the string into a Python object. The code example is as follows:

data_object = pickle.loads(data_string)

In the above example code, data_string is the string we want to deserialize, and data_object is the deserialized Python object.

Next, we can operate on this Python object or access its properties. For example, we can directly print the value of this Python object:

print(data_object)

We can also access the properties of the Python object:

print(data_object[0])
print(data_object[1])

Finally, when we complete the operation on the Python object, if we want to To serialize it again to a string, you can use the dumps function of the pickle module. The sample code is as follows:

data_string = pickle.dumps(data_object)

In the above sample code, data_object is the Python object we want to serialize, and data_string is the serialized string.

To sum up, the process of using the pickle module to deserialize strings into Python objects is very simple. We simply import the pickle module and use the loads function to deserialize the string into a Python object, which we can then operate on.

To summarize, the pickle module is a very useful tool in Python, which can help us save data and state in the program. With the pickle module, we can serialize Python objects into strings and deserialize this string into Python objects. This allows us to easily save and restore the state of the program. Hope this article is helpful to you!

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