Multiple IF conditions on dataframe columns in Python

I have a simple dataframe with two columns: "Sex" and "Alive". What I want to do is to count how many of each gender has survived (indicated by 1 in the file). Here's my file:

Sex Alive
male    1
male    0
female  1
female  1

I tried using the following code, but it has not worked. Any hints and pointers is greatly appreciated.

for r in df:
    if [ (df.Sex=='male') & (df.Alive==1) ]:
        male_survival_rate += 1
    else:
        male_dead_rate += 1