CODEWITHSUNDEEP
pythonjson
bigman1234
bigman1234

Reputation: 105

is this a json.decoder error? what does this mean?

I keep getting this error for my python code here -

Traceback (most recent call last):
  File "/Users/ragz/cowin.py", line 70, in <module>
    vaccine_check()
  File "/Users/ragz/cowin.py", line 43, in vaccine_check
    data = json.load(file)
  File "/usr/local/Cellar/[email protected]/3.9.4/Frameworks/Python.framework/Versions/3.9/lib/python3.9/json/__init__.py", line 293, in load
    return loads(fp.read(),
  File "/usr/local/Cellar/[email protected]/3.9.4/Frameworks/Python.framework/Versions/3.9/lib/python3.9/json/__init__.py", line 346, in loads
    return _default_decoder.decode(s)
  File "/usr/local/Cellar/[email protected]/3.9.4/Frameworks/Python.framework/Versions/3.9/lib/python3.9/json/decoder.py", line 340, in decode
    raise JSONDecodeError("Extra data", s, end)

I am creating a python script that utilizes the COWIN api (for the Indian Government COVID Vaccine distributions) and the twilio whatsapp api to inform me about any updates on vaccine availability - heres my code -

from cowin_api import CoWinAPI
import json
import datetime
import numpy as np 
import os
from twilio.rest import Client
import selenium
from selenium import webdriver
import time
import io
import requests
from selenium.common.exceptions import ElementClickInterceptedException
from selenium.webdriver.common.keys import Keys
from threading import Thread

state_id = '21'

district_id = '395'

min_age_limit = 18

time = datetime.datetime.now()

cowin = CoWinAPI()


def vaccine_check():

    try:
        available_centers = cowin.get_availability_by_district(district_id)

    #outputing it to a json file and bringing it back

        json_output = json.dumps(available_centers, indent=4)

        f = open(f'tests/vaccinecheck[{time.strftime("%b %d %Y %H|%M")}].json', 'a')

        f.write(json_output)
        f.close()

        with open(f.name) as file:
            data = json.load(file)

        n = np.arange(100)

        for x in np.nditer(n): 

            if data["centers"][x]["sessions"][0]["min_age_limit"] == 45:
                print('')   
            else:
                print(f'[{time.strftime("%b %d %Y %H:%M")}]', data["centers"][x]["name"], '-- vaccines:', data["centers"][x]["sessions"][0]['available_capacity'], '-- age-limit:', data["centers"][x]["sessions"][0]["min_age_limit"])
                if data["centers"][x]["sessions"][0]["available_capacity"] >= 1:
                    twilio_send()
    except IndexError: # catch the error
        pass # pass will basically ignore it

def twilio_send():

    client = Client()

    from_whatsapp_number='whatsapp:TWILIO NUMBER'
        
    to_whatsapp_number='whatsapp:PHONE NUMBER GOES HERE'

    client.messages.create(body='VACCINE AVAILABLE!',
                       from_=from_whatsapp_number,
                       to=to_whatsapp_number)

vaccine_check()

Does anyone have any idea on how to fix this? I am also wondering if there is a way to loop it infinitely, if anyone knows.

Upvotes: 0

Views: 503

Answers (1)

aSaffary
aSaffary

Reputation: 863

this is wrong (mode a):

f = open(f'tests/vaccinecheck[{time.strftime("%b %d %Y %H|%M")}].json', 'a')

you can't append to a json file without making the content non-json

Either edit the content of the file or save it as a new json every time.

Note: you can use json.dump instead of file.write and json.dumps.

Upvotes: 1

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