如何在Python中的字典中打印列表？

Question

I have following string and I want to print the list objects:

{u'categories': [u'Food', u'Grocery']}

I used following ode but does not work:

d = {u'categories': [u'Food', u'Grocery']}                        
print "Categories: " + d['categories']                     
print "Categories: " + d['categories[0]']

Thank you!

Answer 1

>>> d = {u'categories': [u'Food', u'Grocery']}
>>> print "Categories: " + ', '.join(d['categories'])
Categories: Food, Grocery
>>> print "Categories: " + d['categories'][0]
Categories: Food

Answer 2

If you're wanting to print categories followed by the name of each category then:

for category in your_dict['categories']:
    print 'Categories:', category

Answer 3

for k,v in your_dict.iteritems():
    for item in v:
        print k, ":", item