If you want to print the object for debugging purposes, use the code: will display: Note: you must only log the object. For example, this won’t work: Note ‘: You can also use a comma in the log method, then the first line of the output will be the string and after that, the object will be rendered:
I am getting started with Object-Oriented Programming (OOP) and would like to know: what is the meaning of serialization in OOP parlance?
If you want to print the object for debugging purposes, use the code: will display: Note: you must only log the object. For example, this won’t work: Note ‘: You can also use a comma in the log method, then the first line of the output will be the string and after that, the object will be rendered:
I just started programming Python. I want to use scrapy to create a bot，and it showed TypeError: Object of type ‘bytes’ is not JSON serializable when I run the project. Traceback：
The json module is a good solution here. It has the advantages over pickle that it only produces plain text output, and is cross-platform and cross-version.
Do you have an idea about the expected output? For example, will this do? In that case you can merely call json.dumps(f.__dict__). If you want more customized output then you will have to subclass JSONEncoder and implement your own custom serialization. For a trivial example, see below. Then you pass this class into the json.dumps() method as cls kwarg: If you also … Read more
The docs for java.io.Serializable are probably about as good an explanation as you’ll get: The serialization runtime associates with each serializable class a version number, called a serialVersionUID, which is used during deserialization to verify that the sender and receiver of a serialized object have loaded classes for that object that are compatible with respect to serialization. If … Read more
I have seen the terms “deserialize” and “serialize” with JSON. What do they mean?