Creating Nested Dictionaries Confusion

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Creating Nested Dictionaries Confusion - gw1500se - May-18-2020

I'm afraid I am not understanding dictionaries. After reading various articles the only thing I learned is I don't know what I am doing. To start, I am trying to produce this json structure.

Output:
{"stoker":{"sensors":null,"blowers":null}}

Here is the code I can't get right:

data={'stoker':{}}
data1['sensors']='null'
data1.update('blowers','null')
data['stoker'].update(data1)

I cannot figure out the syntax for nesting the 2nd dictionary (date1). Can someone give me a brief tutorial? TIA.

RE: Creating Nested Dictionaries Confusion - Yoriz - May-18-2020

data = {'stoker': {}}
data1 = {}
data1['sensors'] = 'null'
data1.update({'blowers': 'null'})
data['stoker'].update(data1)

print(data)

Output:
{'stoker': {'sensors': 'null', 'blowers': 'null'}}

RE: Creating Nested Dictionaries Confusion - gw1500se - May-18-2020

Great, thanks. I see now what I did wrong and why.