Write a program that prompts user to enter the start and end number and displays a list of prime num-CodePudding

I'm trying to import the python is_prime file into the python program, prime_between and to use the is_prime() function to display a list of prime numbers between two numbers. The program should return a list of prime numbers between the "start" and "end" numbers inclusive. Use the "list accumulator pattern" to build the list containing prime numbers.

def is_prime(num):
    if num <= 1:
        return False

    for n in range(2, num):
        if num % n == 0:
            return False

    return True
if __name__ == "__main__":
    num = int(input("Enter a number: "))
        if is_prime(num):
            print(f"{num} is a prime number")
        else:
            print(f"{num} is not a prime number")

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import prime

def prime_between(start, end):
    # Complete the prime_between function.
    prime_list = []
    for i in (start, end):
        x = prime(i)
        if x == "prime":
            prime_list.append(i)
        return prime_list
   
# Complete the main program.
if __name__ == "__main__":
    start = int(input("Enter the start number: "))
    end = int(input("Enter the end number: "))
    lst = prime_between(start, end)
    if len(lst) == 0:
        print("There are no prime numbers from", start, "to", end)
    else:
        print("The prime numbers from", start, "to", end, "are: ", lst)

When I ran it, I got

File "/home/prime_between.py", line 26, in <module>
    lst = prime_between(start, end)
File "/home/prime_between.py", line 17, in prime_between
    x = prime(i) 
TypeError: 'module' object is not callable

CodePudding user response：

Import the function:

from prime import is_prime
...
x = is_prime(i)
...

CodePudding user response：

import prime

def prime_between(start, end):
    # Complete the prime_between function.
    prime_list = []
    for i in range(start, end):
        prime_list = []
    for i in (start, end):
        x = prime.is_prime(i)
        if x is True:
            prime_list.append(i)
        return prime_list

You need to call the function from prime module and assign it to variable then check the return value.

CodePudding user response：

When you import prime, you are importing all of the functions inside of that module (the module being the file prime.py). Check out this guide for a better overview on imports.

To use the code from your module, instead of x = prime(i), use x = prime.is_prime(i).

Another issue, in your following if statement, you check if it equals "prime", but your is_prime function returns True or False. A quick fix would be just if x: since x will be a boolean value.