My code is as follows:
def und1(d):
for i in d:
if type(d[i])==dict:
und1(d[i])
else:
yield({i:d[i]})
Dict1 = {1: 'Geeks', 2: 'For', 3: 'Geeks',4:{5:'wevcn '}}
for z in und1(Dict1):
print(z)
I am currently getting output:
{1: 'Geeks'}
{2: 'For'}
{3: 'Geeks'}
Expected output:
{1: 'Geeks'}
{2: 'For'}
{3: 'Geeks'}
{5:'wevcn'}
Issue: My function is not calling recurisve function it is returning null. Can some tell me why?
Your code should use yield from and can be simplified like this:
def und1(d):
for k, v in d.items():
if isinstance(v, dict):
yield from und1(v)
else:
yield {k: v}
dict1 = {1: 'Geeks', 2: 'For', 3: 'Geeks', 4: {5: 'wevcn '}}
for z in und1(dict1):
print(z)
The isinstance() is specifically useful to check if "something is a ..." and by iterating over .items() of a dict, you can easily get access to both the key and value, so you don't have to index the dict again.
The output:
{1: 'Geeks'}
{2: 'For'}
{3: 'Geeks'}
{5: 'wevcn '}
In your code, a generator was returned from the function (as it does yield for non-dict items) and since you called the function, but didn't assign the function result to anything, that generator got discarded.
You could assign the function result to a variable and iterate over that, but there's no need for what you want with it.
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