Find first set bit | Python

Python for beginners:
https://www.youtube.com/watch?v=egq7Z...

Code:


t=int(input());
i=0;
while(i<t):
    a=int(input());
    rs=bin(a)[2:];
    y=list(rs);
    y.reverse();
    if('1' in y):
        io=y.index('1');
        print(io+1);
    else:
        print(0);
    i=i+1;


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