How to use numpy with 'None' value in Python?

Question

I\'d like to calculate the mean of an array in Python in this form:

Matrice = [1, 2, None]

I\'d just like to have my None valu

Answer 1

You can also use filter, pass None to it, it will filter non True objects, also 0, :D So, use it when you dont need 0 too.

>>> filter(None,[1, 2, None])
[1, 2]