<qiyuangong>191_Number_of_1_Bits_1.py
def hammingWeight( n):
    s_n = bin(n)[2:]
    return s_n.count('1')
def sample_funcname ( var_0 ) :
    var_3 = bin ( var_0 ) [ 2 : ]
    return var_3.count ( '1' )
