Question

I have a dictionary

>>>d = {"a":"apple", "c":"cat", "d":"dog"}

That dictionary should be printed to output in this particular format:

1. apple
2. cat
3. dog

If I have to use list comprehension to do so,
how would I go about getting it to also print the current iteration number i.e. 1 or 2 or 3 as per above output.

This is what I have so far and it just prints the dict values on newlines, but it is far from what I want.

>>>temp =  "\n".join( [d[i] for i in d] )
>>>print temp

• Also, is it beneficial to use a generator instead of list comprehension here?
• Enviroment: Python 2.7

Answer 1

Sorted by value:

print '\n'.join('{}. {}'.format(i, d[k]) for (i,k) in enumerate(sorted(d, key=d.get), 1))
1. apple
2. cat
3. dog

---

Sorted by key:

>>> print '\n'.join('{}. {}'.format(i, d[k]) for (i,k) in enumerate(sorted(d), 1))
1. apple
2. cat
3. dog

---

Unsorted (results will come out however dict feels like giving them)

>>> print '\n'.join('{}. {}'.format(i, v) for (i,v) in enumerate(d.itervalues(), 1))
1. apple
2. cat
3. dog