OptInt type function in Python

June 3, 2023

import pandas as pd
import json

    mass=[]
    fall=[]
    year=[]

req = requests.get("https://data.nasa.gov/resource/y77d-th95.json")
response =req.json()

for i in range(0,len(response)):
    mass.append(response[i]['mass']) 
    fall.append(response[i]['fall'])
    year.append(response[i]['year'])

I handle keyError with the help of Exception handling. If i got keyerror i added NAN value.
As java have function like OptString whenever we get keyerror it add default value.
I just want to get all data in list but via using optString type method.
Can you give any example ?

Thanks ,

>Solution :

You can use dict.get to provide a default value as the second argument.

For example:

from math import nan

for obj in response:
    mass.append(obj.get('mass', nan))
    fall.append(obj.get('fall', nan))
    year.append(obj.get('year', nan))