Question

I have a basic code that just simply loops over and print some numbers in python. My problem was that I needed a different way to print my output since I wanted them to be on the same line. (The standard python print statement just prints stuffs on a new line). After doing some research i discovered that I could do something like this

    import random
from sys import stdout
    i= 0
    while i < 100:
        j = 0
        while j < 4:
            k =0
            while k < 4:
                sys.stdout.write(random.randint(0, 9))
                k += 1
            sys.stdout.write(" ") 
            j += 1   
        i += 1
        print "\n" 

This works like charm when I run it using IDLE — python’s ide, my only problem is that whenever I try to run it from the terminal it complains about this

    CallingCard $ python numGenerator.py 
Traceback (most recent call last):
  File "numGenerator.py", line 13, in <module>
    sys.stdout.write(random.randint(0, 9))
NameError: name 'sys' is not defined
CallingCard $ 

Wondering what might be the problem since running it from IDLE, FYI I am using python 2.7.3

Answer 1

Found the solution. Deep thinking helps sometimes
Below is the code

    i= 0
while i < 100:
    j = 0
    while j < 4:
        k =0
        while k < 4:
            sys.stdout.write("%s" % random.randint(0, 9))
            k += 1  
        sys.stdout.write(" ") 
        j += 1   
    i += 1
    print "\n"