In my fetched json data, how can I seperate out the balance? - json

Question

So, I have been testing block.io api, and so far I have this:
knee = block_io.get_address_balance(labels='shibe1')
s1 = json.dumps(knee)
d2 = json.loads(s1)
print (d2)
It returns me with this batch of text:
{'status': 'success', 'data': {'network': 'DOGE', 'available_balance': '0.0', 'pending_received_balance': '0.0', 'balances': [{'user_id': 1, 'label': 'shibe1', 'address': 'A9Bda9UMBcb1183PtsBxnbj5QgP6jwkCFG', 'available_balance': '0.00000000', 'pending_received_balance': '0.00000000'}]}}
How would I get it so that I could grab only the available_balance part of it, and print it out instead of all of the json data?
EDIT: Please help! Cant find a solution.

Answer 1

Try using some regex.
import re
data="{'status': 'success', 'data': {'network': 'DOGE', 'available_balance': '0.129',
'pending_received_balance': '0.0', 'balances': [{'user_id': 1, 'label': 'shibe1',
'address': 'A9Bda9UMBcb1183PtsBxnbj5QgP6jwkCFG', 'available_balance': '0.00000000',
'pending_received_balance': '0.00000000'}]}}"
pattern = re.compile("(?<=available_balance': ').*?(?=')")
matches = pattern.finditer(data)
for match in matches:
print(match.group())
Breakdown :
import re imports the regex library built into python
data="{'status': 'success', 'data': {'network': 'DOGE', 'available_balance': '0.129',
'pending_received_balance': '0.0', 'balances': [{'user_id': 1, 'label': 'shibe1',
'address': 'A9Bda9UMBcb1183PtsBxnbj5QgP6jwkCFG', 'available_balance': '0.00000000',
'pending_received_balance': '0.00000000'}]}}" is a string containing the data to match. You can replace this with the json data.
pattern = re.compile("(?<=available_balance': ').*?(?=')") compiles the regex for finding the data for available balance.
Regex breakdown
(?<= is a lookbehind, which means it will check if the value is actually available_balance.
.* matches everything inside a defined constraint.
(?= is a lookahead, which means it will match everything before the close parenthesis, and everything after the lookbehind.
pattern.finditer(data) matches the regex against data
for match in matches:
print(match.group()) prints the matches from the regex.
If you compile this code, you will get the following results :
0.129
0.00000000
If you want the code under your variables, here you go :
import re
pattern = re.compile("(?<=available_balance': ').*?(?=')")
matches = pattern.finditer(d2)
for match in matches:
print(match.group())