I have one json file which i want to iterate using recursive function , but how to check whether my json structure is string , array , list or object ?
If its array and inside array there are 5 objects how to access objects using recursive function in python ?
{{ID: 1234,Custid:23456,req:{name:abc,std:2}}{ID:2789,custid:56897}} this is the json...i read it using loads in data
Use recursion, and use type() or isinstance() to decide what to do.
def handle(x):
if isinstance(x, dict):
# do dict stuff
for key, val in x.items():
handle(val)
elif isinstance(x, list):
# do list stuff
for val in x:
handle(val)
elif isinstance(x, str):
# do string stuff
print(x)
elif isinstance(x, (int, float)):
# maybe integer, float, etc
print(x)
else:
print("None???")
d = json.loads(json_string)
handle(d)
Above recursive implementation will handle your use case of array in array, dict in array, etc
i want to iterate using recursive function.
isinstance() checks) of what the OP asks for.
for val in x: above will iterate over them one by one. It will again call the recursive handle, which will take care of the values in that array, whatever it is. Just try running the above code with different values of json_string. Here : ideone.com/OvEFk8Use isinstance:
s='this is a string (str)'
if isinstance(s,str):
do something
Also able to do multiple like:
isinstance(s,(str,int))
Or more inefficient way by checking type:
if type(s) is str:
do something
This is able to use multiple like:
type(s) in (str,int)
But in these solutions i recommend to use isinstance
isinstance() is the recommanded way unless you really want to check the exact type.
isinstance.