python script to give a list of prime no.

[Orges Leka]

You can try the following:
It is based on trial division and very slow, compared to the state of the
art:

import math
def is_prime(n):
    if int(math.sqrt(n))**2 == n:
        return(False)
    for i in range(2,int(math.ceil(math.sqrt(n)))):
        if n%i==0:
            return(False)
    return(True)

then:

primes = [x for x in range(1,1000) if is_prime(x)]

print(primes)

Kind regards,
Orges

Am So., 5. Apr. 2020 um 14:27 Uhr schrieb Sathvik Babu Veligatla <
sathvikveligatla at gmail.com>:

> hi,
> I am new to python, and i am trying to output the prime numbers beginning
> from 3 and i cannot get the required output.
> It stops after giving the output "7" and that's it.
>
> CODE:
> a = 3
> l = []
> while True:
>     for i in range(2,a):
>         if a%i == 0:
>             l.append(1)
>         else:
>             l.append(0)
>
>     if l.count(1) == 0:
>         print(a)
>         a = a + 2
>     elif l.count(1) >> 0:
>         a = a + 2
>
>
>
> Any help is appreciated,
> Thank you.
> --
> https://mail.python.org/mailman/listinfo/python-list
>


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