python tutorial working with json data using the json module

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working with json data in python using the `json` module

json (javascript object notation) is a lightweight data interchange format that is easy for humans to read and write and easy for machines to parse and generate. python's `json` module provides a straightforward way to work with json data.

table of contents

1. *introduction to json*
2. *loading json data*
3. *parsing json data*
4. *writing json data*
5. *pretty printing json*
6. *handling json errors*
7. *conclusion*

1. introduction to json

json data is commonly used in web applications to transmit data between a server and a client. json consists of key-value pairs and supports data structures like arrays, objects, strings, numbers, booleans, and null values.

2. loading json data

to load json data, you typically read it from a file or receive it as a string. the `json` module provides the `json.loads()` method to parse a json string and the `json.load()` method to read json data from a file.

example: loading json from a string



example: loading json from a file



3. parsing json data

once you have loaded json data, you can access it like a python dictionary. you can retrieve values using keys, iterate over them, and manipulate the data as needed.



4. writing json data

to write json data back to a file or convert a python object to a json string, you can use the `json.dumps()` and `json.dump()` methods.

example: writing json to a string



example: writing json to a file



5. pretty printing json

to make the json output more readable, you can use the `indent` parameter in the `json.dumps()` or `json.dump()` methods.



6. handling json errors

when working with json data, it's important to handle potential errors, such as malformed json. you can use a try-except block to catch `json.jsondecodeerror`.



7. conclusion

the `json` module in python makes it easy to work with json data. you can load, parse, write, and pretty-print json effortlessly. by understanding how ...

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using json.loads and json.dumps