Python object is written to json file, how to solve parentheses into square brackets?

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Hello everyone, I'm Pippi.

I. Introduction

A few days ago in the Python exchange Baiyin group [Mortals are not annoying], I asked a question to Pythondeal with, as shown in the figure below.

Second, the realization process

Here [Mr. Yu Liang] gave an idea and code, which encodes the object into a string, and  json.dumps()converts the sum in and into the type in the process. Therefore, the parentheses of the tuple are converted to the square brackets of the array.pythonJsonpythonlisttuplejsonarray

f-stringUse the write file directly , and when you read it below eval, it will be restored to pythonthe listtype in .

draw_data = [{"tm": 275, "ab": [(753, 747), (755, 749)], "a": "0.607514", "b": "0.425784", "lW": 2, "cr": "#1795ff", "pg": 27},
             {"tm": 281, "ab": [(713, 755)], "a": "0.574740", "b": "0.430732", "lW": 2, "cr": "#ee4844", "pg": 27}]

with open(f'draw.json', 'w') as f1:
    f1.write(f'{draw_data}')
with open(f'draw.json', 'r') as f2:
    data = eval(f2.read())
    print(type(data))
    print(data)

The running result is shown in the following figure:

Solve the fans' problems smoothly!

3. Summary

Hello everyone, I'm Pippi. This article mainly takes stock of a Pythonstring processing problem. The article gives specific analysis and code implementation for this problem, helping fans to solve the problem smoothly.

Finally, I would like to thank the fans [Mortals are not annoying] for asking questions, [Mr. Yu Liang] and [Luna] for their ideas and code analysis, and [dcpeng], [Feng Cheng], [such creatures], and [Cat Pharmacist Kelly] Participate in learning exchanges.

If you encounter any problems during the learning process, please feel free to contact me to solve them (my WeChat: pdcfighting). At the request of fans, I have created some high-quality Pythonpaid learning exchange groups. Welcome everyone to join my Pythonlearning exchange group!

If you have any questions, please add me as a friend, and I will pull you into the Python learning exchange group to discuss and learn together.