Adding values in a json file

Question

I'm trying to add previously added integers in the json file. for discord.py

@client.command()
async def mine(ctx):
await open_account(ctx.author)

users = await get_wallet_data()

user = ctx.author


earnings = int(random.randrange(11))

em = discord.Embed(title = 'Mined NeoCoins')
em.add_field(name = 'Earnings:', value = earnings)
await ctx.send(embed = em)


wallet_amt = users[str(user.id)]['Wallet']
print(wallet_amt)
nw = wallet_amt =+ earnings
nw = users[str(user.id)]['Wallet']
print(nw)


with open('wallet.json','w') as f:
    users =  json.dump(users,f)

But I'm getting that same value. Not the added value

chrisgallardo · Accepted Answer · 2020-09-13 23:17:40Z

1

To change the values of `.json` files, you have to load the file first, make the edits, and then replace the file with the changed version.

Load file:

with open("filename.json", "w+") as fp:
    d = json.load(fp) #load the file as an object

Make edits:

    ... #change the values in d

Replace file with changed version:

    fp.truncate(0) #empty the file
    json.dump(d, fp) #dump changed version into file

Full Code

answered Sep 13, 2020 at 23:17

chrisgallardo

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Adding values in a json file

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To change the values of `.json` files, you have to load the file first, make the edits, and then replace the file with the changed version.

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1 Answer 1

To change the values of .json files, you have to load the file first, make the edits, and then replace the file with the changed version.

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To change the values of `.json` files, you have to load the file first, make the edits, and then replace the file with the changed version.