python_code/python_primes.py at master · rockcesar/python_code · GitHub

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# -*- coding: utf-8 -*-

"""
 Programa desarrollado por el Licenciado César Cordero Rodríguez.
 Bajo licencia GPLv3.
 Puede ser modificado, copiado y distribuido.
 Se desarrolló con fines educativos.

"""

importtime
importos

defwrite_file(value, way, file_name):
os.system("echo "+str(value) +" "+str(way) +" "+str(file_name))

defprimes(i, count, total_found):
write_file(str(i), ">", "primos.last")
write_file(str(total_found+count), ">", "total_primes.found")

defcalculate_primes():
found=0
i=0

try:
number=open("number_of_primes.to_find", "r")
top=int(number.read())
number.close()
except:
top=100
write_file(str(top), ">", "number_of_primes.to_find")

try:
total_found_file=open("total_primes.found", "r")
total_found=int(total_found_file.read())
total_found_file.close()
except:
total_found=0

try:
last=open("primos.last", "r")
last_n=int(last.read())
last.close()
except:
last_n=1

i=last_n

iftotal_found>0:
count=-1
else:
count=0

whileTrue:
ifi==1:
count+=1
print("Prime found = "+str(i))
write_file(str(i), ">>", "primos.list")
primes(i, count, total_found)
i+=1
continue

found=2
forjinrange(2, i):
ifi%j==0:
found+=1
break
iffound==2:
count+=1
print("Prime found = "+str(i))
write_file(str(i), ">>", "primos.list")
primes(i, count, total_found)

ifcount==top:
primes(i, count, total_found)
break

i+=1

print("Total primes "+str(total_found+count))

inicio=time.time()

calculate_primes()

final=time.time()

print("Final "+str((final-inicio)))

print("Primes Python")