File14. Файли ададҳои ҳақиқӣ дода шудааст. Миёнаи арифметикии элементҳои он ёфта шавад.

Ҳал дар Python 3:

import random
import numpy

def EmptyFile(fname):
open(fname, 'w').close()

def GenerateLine(fname):
EmptyFile(f_source)
N = random.randrange(1,20)
line = ""
L = []
for i in range(N):
x = format(random.uniform(-10,10),'.1f')
L.append(x)
line = "; ".join(L)
try:
f = open(fname, "w")
try:
f.write(line)
finally:
f.close()
except IOError:
print('Write error: ',fname)
print(line)

f_source = "file14_source.txt"
GenerateLine(f_source)

try:
with open(f_source,'r') as f:
lines = f.readlines()
l_float = []
print(lines)
for line in reversed(lines):
for i in line.split("; "):
l_float.append(float(i))
print(l_float)
x = numpy.mean(l_float)
print("Mean:",format(x,'.3f'))

except IOError:
print('Open error: ',f_source)