Find specific variable in array inside array

Question

I want to search an array if it contains an variable "Foo"

details={u'firstName': u'Test', u'activeSubscriptions': [{u'productCode': u'BBB', u'name': u'Bar'}, {u'productCode': u'FFF', u'name': u'Foo'}

I have done like this:

subscriptions_name = data['activeSubscriptions'][0]['name']

but this only works for the first data in the array.

How could I get the name of FFF if the data is not placed consistently?

Does it have to be FFF or do you want to check value of name for all dicts in activeSubscriptions? — John B
– John B, Commented Sep 2, 2014 at 7:56

xecgr · Accepted Answer · 2014-09-02 07:28:47Z

1

If you are searching by productCode in your activeSubscriptions array, you are looking for this:

>>> details={'firstName': 'Test', 'activeSubscriptions': [{'productCode': 'BBB', 'name': 'Bar'}, {'productCode': 'FFF', 'name': 'Foo'}]}
>>> product_code_search_key = 'FFF'
>>> for subscription in details['activeSubscriptions']:        
...     if subscription and subscription.get('productCode','') and subscription['productCode'] == product_code_search_key:
...         print subscription['name']
...         break
... 
>>> Foo

answered Sep 2, 2014 at 7:28

xecgr

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sundar nataraj · Accepted Answer · 2014-09-02 07:13:46Z

0

you can iterate the array of dictonary and acheive like below

details={'firstName': 'Test', 'activeSubscriptions': [{'productCode': 'BBB', 'name': 'Bar'}, {'productCode': 'FFF', 'name': 'Foo'}]}

for i in details['activeSubscriptions']:        
    if 'Foo' in i.values():
        print i

answered Sep 2, 2014 at 7:13

sundar nataraj

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Comments

GHugo · Accepted Answer · 2014-09-02 07:27:03Z

You can flatten your list recursively and search inside it:

def flatten(l):
    res = []
    for e in l:
        if type(e) is dict:
            tmp = e.values()
            res += flatten(tmp)
         elif type(e) is list:
             tmp = e[:]
             res += flatten(tmp)
         else:
             res += e
    return res

if "Foo" in flatten(list)

Edit: for performance reason, it is unnecessary to compute the array and search inside it. Following a version that just search inside the array:

def is_in_superlist(l, m):
    for e in l:
        if type(e) is dict:
            return is_in_superlist(e.values(), m)
         elif type(e) is list:
             return is_in_superlist(e, m)
         else:
             if e == m:
                 return True
    return False

is_in_superlist(list, "Foo")

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