Python JSON
Parse, serialize, and pretty-print JSON with correct encoding.
- python json
- json dumps
- json loads
- json.tool
- ensure_ascii
Python JSON
Parse, serialize, and pretty-print JSON with correct encoding.
Commands
| Command | What it does |
|---|---|
json.loads(text) | Parse a JSON string |
json.load(open("a.json", encoding="utf-8")) | Parse a file |
json.dumps(obj, ensure_ascii=False, indent=2) | Pretty, unicode-preserving output |
json.load with object_hook | Custom decoding |
python -m json.tool a.json | CLI pretty-printer |
Example
import json
raw = open("a.json", encoding="utf-8").read()
data = json.loads(raw)
print(json.dumps(data, ensure_ascii=False, indent=2)[:200])FAQ
How do I serialize datetimes/decimals?
Pass default=str, or a custom JSONEncoder; JSON has no native date type.
Why ensure_ascii=False?
Keeps CJK readable in output instead of \uXXXX escapes.
FAQ
How do I serialize datetimes/decimals?
Pass default=str, or a custom JSONEncoder; JSON has no native date type.
Why ensure_ascii=False?
Keeps CJK readable in output instead of \uXXXX escapes.
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