\begin{array}{c} \color{lightblue}{\texttt{#Ileveledupalone}} \end{array}

Code :

def mahiru(n):
    nt = [True] * (n+1)
    for i in range(2, int(n**0.5)+1):
        if nt[i]:
            for j in range(i**2, n+1, i):
                nt[j] = False
    return [i for i in range(2, n+1) if nt[i]]