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This article mainly introduces "how python reads json files". In daily operation, I believe many people have doubts about how python reads json files. The editor consulted all kinds of materials and sorted out simple and easy-to-use operation methods. I hope it will be helpful to answer the doubts about "how python reads json files". Next, please follow the editor to study!

JSON (JavaScript Object Notation) is a lightweight data exchange format. It is based on a subset of ECMAScript. JSON uses a completely language-independent text format, but also uses conventions similar to the C language family (including C, C++, Java, JavaScript, Perl, Python, and so on). These features make JSON an ideal data exchange language. It is easy for people to read and write, and it is also easy to be parsed and generated by machines (generally used to increase the network transmission rate).

Before performing the json operation, you should first understand the format of json and parse the json file.

There are generally two json file formats:

The first: one json per line is similar to the following form:

["name": "Tony", "age": "21", "hobbies": ["basketball", "tennis"]] ["name": "Lisa", "age": "20", "hobbies": ["sing", "dance"]]

This json format is that each line is a json, and there is no association between lines.

Related recommendation: "Python tutorial"

The second kind: a file is written as a large json

[{"name": "Tony", "age": "21", "hobbies": ["basketball", "tennis"]}, {"name": "Lisa", "age": "20", "hobbies": ["sing", "dance"]}]

This format is used to connect each record.

Now read the json file, using the json.load function

F = open ('/ home/codergray/company/test_2.json') # maps data in json format to the form list t = json.load (f)

So t is a list, just access it in the same way as you normally access list.

Str = t [0] ['name'] print str

Output:

Tony at this point, the study of "how to read json files by python" is over. I hope to be able to solve your doubts. The collocation of theory and practice can better help you learn, go and try it! If you want to continue to learn more related knowledge, please continue to follow the website, the editor will continue to work hard to bring you more practical articles!

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