Question: Does this Python code actually find the dot product of two vectors?

```
import operator

vector1 = (2,3,5)
vector2 = (3,4,6)
dotProduct = reduce( operator.add, map( operator.mul, vector1, vector2))

```

Answer: 
Yes it does. Here is another way

```
>>> sum(map( operator.mul, vector1, vector2))
48

```

and another that doesn't use `operator` at all

```
>>> vector1 = (2,3,5)
>>> vector2 = (3,4,6)
>>> sum(p*q for p,q in zip(vector1, vector2))
48

```
You can also use the numpy implementation of [dot product](http://docs.scipy.org/doc/numpy/reference/generated/numpy.dot.html) which has large array optimizations in native code to make computations slightly faster. Even better unless you are specifically trying to write a dot product routine or avoid dependencies, using a tried tested widely used library is much better than rolling your own.