include.py

import os
import json
from sys import argv
from sys import stderr
def read():
    try:
        os.mkdir(os.path.expanduser("~/.vocab"))
    except FileExistsError:
        pass
    try:
        with open(os.path.expanduser("~/.vocab/data.json"),"r") as f:
            try:
                words=json.load(f)
            except json.decoder.JSONDecodeError:
                print(os.path.expanduser("~/.vocab/data.json"+" can't be decoded."),file=stderr)
                print("See if it's set to a wrong authority",file=stderr)
                print("or the file is broken",file=stderr)
                print("Type Y to clear the file.", file=stderr)
                if input() == 'Y':
                    write([])
                    words=[]
                else:
                    exit()
        return words
    except FileNotFoundError:
        print(os.path.expanduser("~/.vocab/data.json"), "is not found.", file=stderr)
        print("Initialize it with an empty list", file=stderr)
        write([])
        return []

def write(words):
    try:
        with open(os.path.expanduser("~/.vocab/data.json"),"w") as f:
            json.dump((words),f)
    except FileNotFoundError:
        print(os.path.expanduser("~/.vocab/data.json"+" is not found."),file=stderr)
        print("call "+argv[0]+" --help for more information",file=stderr)