Question: I know that len(dict) would give the number of keys but what i want is this

```
 mydict = {
    'a': [[2,4], [5,6]],
    'b': [[1,1], [1,7,9], [6,2,3]],
    'c': [['a'], [4,5]],
}

```

The number i want in this case is 7, 7 being the number of elements in 'a' + number of elements in 'b' + number of elements in 'c'

Answer: 
Given a dictionary

```
mydict = {
    'a': [[2,4], [5,6]],
    'b': [[1,1], [1,7,9], [6,2,3]],
    'c': [['a'], [4,5]],
}

```

You can get the sum of the lengths of each value using

```
sum(map(len, mydict.values()))

```
Please correct your example, it is not valid python dict.

I assumed that against every key you have list of lists.

```
dict = {
        'a': [[2,4],[5,6]],
        'b': [[1,1],[1,7,9],[6,2,3]],
        'c': [[3],[4,5]]
}

```

Your answer:

```
print sum (len(element) for element in dict.values());

```