Create Dictionary from a nested List

def crdic(a):
    b={}
    printOP=0
    for i in a:
        if len(i) != 2:
            print 'ERROR - Inner list has more/less than two elements'
            printOP=1
            break
        else:
            b[i[0]]=i[1]
    if printOP != 1:
        print 'Got list : ', a
        print 'Created dictionary : ', b

a=[['name','ruchi'],['nickname','r007']]
a1=[['name','ruchi','penguin'],['nickname','r007']]

crdic(a)
crdic(a1)

>>> 
Got list :  [['name', 'ruchi'], ['nickname', 'r007']] 
Created dictionary :  {'nickname': 'r007', 'name': 'ruchi'} 
ERROR - Inner list has more/less than two elements
>>>