We do have this string:
{"transaction_invoiceno":"11111","fallback":false,"emvTags":"null"}
How to convert this string to list or array so we can get values and print them, for example:
transaction_invoiceno = 11111
fallback = false
emvTags = null
I believe something like the following snippet should do the trick:
s = '{"transaction_invoiceno":"11111","fallback":false,"emvTags":"null"}'
s = s.replace('false', 'False')
exec('d = '+ s)
transaction_invoiceno = int(d["transaction_invoiceno"])
fallback = d["fallback"]
emvTags = d["emvTags"]
However, the null will be a string.
One of the best method to resolve this issue is given by User:Johnny John Boy. This is another way check out this code:
my_json = '{"transaction_invoiceno":"11111","fallback":false,"emvTags":"null"}'.replace('false', 'False')
my_dict = eval(my_json)
for k,v in my_dict.items():
print(k, v)
For more detail you can check out this link
You can use the inbuilt json library like this although you need to replace your double quotes with single ones or you'll get an error.
If you want to iterate through the key, value pairs of the dictionary you can simply use the .items() method.
import json
my_json = '{"transaction_invoiceno":"11111","fallback":false,"emvTags":"null"}'
my_dict = json.loads(my_json)
for k,v in my_dict.items():
print(k, v)
transaction_invoiceno 11111
fallback False
emvTags null
import json
data = json.loads('{"transaction_invoiceno":"11111","fallback":false,"emvTags":"null"}')
#
# Get values by key name
#
transaction_invoiceno = data['transaction_invoiceno']
fallback = data['fallback']
emvTags = data['emvTags']
#
# Convert data types ("fallback" already set to bool by json.loads)
#
transaction_invoiceno = int(transaction_invoiceno)
emvTags = (None if data['emvTags'] == "null" else data['emvTags'])
#
# Check types
#
print f"transaction_invoiceno: type: {type(transaction_invoiceno)}, value: {transaction_invoiceno}")
print(f"fallback: type: {type(fallback)}, value: {fallback}")
print(f"emvTags: type: {type(emvTags)}, value: {emvTags}")
d = json.loads(your_string). After this you can access your variable usingd['transaction_invoiceno']