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How to Create a JSON Data Helper in Python

A beginner-friendly DataHelper class that safely reads and writes JSON files with timestamps to a local data directory.

json files data-helper
Python 
from datetime import datetime
from pathlib import Path
import json


class DataHelper:
    """Simple helper for reading/writing JSON files safely."""

    def __init__(self, base_dir="data"):
        self.base_dir = Path(base_dir)
        self.base_dir.mkdir(exist_ok=True)

    def save(self, filename, data):
        …
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