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#!/usr/bin/env python3.6
import os
import sys
def is_div(number, i):
return number % i == 0
def is_prime(number):
for i in range(2, number):
if is_div(number, i):
return False
return True
def prime_divs(number):
prime_dividers = []
for i in range(2, number):
if is_prime(i) and is_div(number, i):
prime_dividers.append(i)
return prime_dividers
def main(fileIn, fileOut):
try:
with open(fileIn) as input, open(fileOut, "w") as output:
for line in input:
try:
number = int(line)
except ValueError:
print(f"Not a valid number: {line}")
continue
prime_dividers = prime_divs(number)
res = str(number)
for prime_div in prime_dividers:
res += " " + str(prime_div)
res += "\n"
output.write(res)
print(res, end="")
except IOError:
print("IOError")
sys.exit(-1)
if __name__ == '__main__':
if len(sys.argv) != 3:
print(f"Usage: {sys.argv[0]} fileIn fileOut")
sys.exit(-1)
if not os.path.isfile(sys.argv[1]):
print(f"{sys.argv[0]}: No such file {sys.argv[1]}")
sys.exit(-1)
main(sys.argv[1], sys.argv[2])