5

Hello I have a python variable with List plus dictionary 

 >>> print (b[0])
    {'peer': '127.0.0.1', 'netmask': '255.0.0.0', 'addr': '127.0.0.1'}
-----------------------------------------------------------------------
   >>> print (b)
[{'peer': '127.0.0.1', 'netmask': '255.0.0.0', 'addr': '127.0.0.1'}]
>>>

I have tried everything But I couldn't get 'addr' extracted.

Help Please.

Raja G
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6 Answers6

3

You can just use b[0]['addr']:

>>> b = [{'peer': '127.0.0.1', 'netmask': '255.0.0.0', 'addr': '127.0.0.1'}]
>>> b[0]['addr']
'127.0.0.1'
heemayl
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  • This is different from what I have asked. This is extracting from a simple dictionary but what I have asked have a list too, – Raja G Feb 08 '16 at 06:25
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    @Raja Ok..no problem..the notion is same..you just need to add the list index..thats it..check edit :) – heemayl Feb 08 '16 at 06:31
3

try this:

print (b[0]['addr'])

print(b[0]) gives a dictionary, in dictionary you can fetch the value by its key like dict[key] => returns its associated value.

so print(b[0]['addr']) will give you the value of addr

Read about python data structure here Data structure

Hackaholic
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3

print list by its key

print(b[0]['addr'])
BMW
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3

You can just use a print(b[0]['addr'])

The6thSense
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Morgan G
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3

You could use get method of dict:

>>> b[0].get('addr')
'127.0.0.1'

From docs:

get(key[, default])
Return the value for key if key is in the dictionary, else default. If default is not given, it defaults to None, so that this method never raises a KeyError.

Anton Protopopov
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1

You may use get method of dict, which works on the key, and provide the corresponding value. b[0].get('addr')

Shanu Pandit
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