To format floating-point numbers using the standard JSON module, you can use the "json.dumps()" function with the "default" parameter set to a function that converts floats to strings with the desired format.
Here is an example:
import json
def float_format(f):
return '{:.2f}'.format(f)
data = {'value': 3.14159}
json_string = json.dumps(data, default=float_format)
print(json_string) # output: '{"value": "3.14"}'
In this example, the "float_format" function converts floats to a string with two decimal places. The "json.dumps()" function uses this function to serialize the "data" dictionary to a JSON string. The resulting JSON string has the float value formatted as "3.14".
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Asked: 2022-05-16 11:00:00 +0000
Seen: 7 times
Last updated: Dec 25 '21
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