Simple "database" class in Python -- basically a dict which can load-from/write-to disk without you manually calling json.load()/json.dump()

database.py

import json

class DataBase(object):

	def __init__(self, path):

		self.path = path
		self.load()


	def load(self):

		try:
			with open(self.path) as f:
				try:
					self.db = json.load(f)

				except json.decoder.JSONDecodeError:
					if not f.read():  # file is empty
						self.db = {}
						self.write()
					else:
						raise
		
		except FileNotFoundError:
			with open(self.path, 'w') as f:
				f.write('{}')

			self.db = {}

		self.clear = self.db.clear
		self.copy = self.db.copy
		self.items = self.db.items
		self.keys = self.db.keys
		self.values = self.db.values


	def write(self):

		with open(self.path, 'w') as f:
			json.dump(self.db, f, ensure_ascii=False)

	def __getitem__(self, key):
		return self.db[key]

	def __setitem__(self, key, item):
		self.db[key] = item

	def __len__(self):
		return len(self.db)

	def __delitem__(self, key):
		del self.db[key]

	def __iter__(self):
		return iter(self.db)

	def pop(self, *args):
		return self.db.pop(*args)

	def has_key(self, key):
		return key in self.db