Here's my code:
from random import random
f = open('Attractors1.txt', 'w')
for i in range(10):
theta = (3.14/2)*random()
f.write(str(theta))
I'm trying to create a list of 10 theta values so I can call them in another program, but I don't think the objects are writing correctly. How do I know if I'm doing it write? Whenever I run the code and execute f.read() I get an error saying the file isn't open.
You can't read from a file opened in write-only mode. :)
Since you're not writing within the loop, you'll only actually spit out a single number. Even if you fixed that, you'd get a bunch of numbers all in one line, because you're not adding newlines. .write isn't like print.
Also it's a good idea to use with when working with files, to ensure the file is closed when you think it should be.
So try this:
import math
from random import random
with open('Attractors1.txt', 'w') as f:
for i in range(10):
theta = (math.PI / 2) * random()
f.write("{0}\n".format(theta))
f = open('Attractors1.txt', 'w')
for i in range(10):
theta = (3.14/2)*random()
f.write(str(theta))
f.close()
Then to read:
f = open('Attractors1.txt','r')
text = f.read()
print text
Edit: wups beaten to it
