Question

i have dict and list as bellow

a = {'aaa': 1, 'bbb': 2, 'ccc': 3}
b = ['aaa', 'bbb', 'ddd', 'eee']

I am comparing list b in dict a and I am printing values of 'aaa' and 'bbb', I dont know how to store values of aaa=1, bbb=2. I am trying using this code

for i in range(0,len(b)):
    if b[i] not in d:
        continue
    else:
        print int(a[b[i]])

its printing

1
2

i want to assign aaa=1,bbb=2,ddd=0,eee=0.

And Then when I print "print aaa,bbb,ccc,ddd" it should print values. The variables in list b can vary, so that I should dynamically assign values which are in b not in a to zero.

Answer 1

Try this

a = {'aaa': 1, 'bbb': 2, 'ccc': 3}
b = ['aaa', 'bbb', 'ddd', 'eee']
c = dict([(x, a.get(x, 0)) for x in a])

print "%(aaa)s %(bbb)s %(ccc)s" % c