How to refine the pattern and remove the brackets in output?

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I am trying to write a function that prints a diagonal pattern. The arguments to this are:

  1. The number of columns (stars) in each line
  2. The number of lines
  3. The length of the gap between two consecutive stars on each line.

This is what I have tried:

def pattern(s, r, g):
    for i in range(r):
        print(" " * g, ("*", " " * g) * s, end="\n")

But the output looks like this: for pattern(2,3,4) where 2 is the number of stars in each row, 3 is the number of rows and 4 is the number of gaps between the stars

('*', '    ', '*', '    ')
('*', '    ', '*', '    ')
('*', '    ', '*', '    ')

How can I execute this without the brackets?

You are printing out tuples. You need to unpack tuple using * operator:

def pattern(s, r, g):
    for i in range (r):
        print(' ' * g, *('*', ' ' * g) * s, end='\n')

pattern(2, 3, 4)

Output:

     *      *
     *      *                                                    
     *      *                                            

How to refine the pattern and remove the brackets in output?, I am trying to write a function that prints a diagonal pattern The arguments to this are The number of columns stars in each line The number of lines The length of� 0 How to refine the pattern and remove the brackets in output? Feb 17 '19. 0 Impact of choosing a programming language on the OS performance May 28 '18.

You can add one more loop

    for i in range (r):
        for j in range(s):
            print('*', ' '*g, end='')
        print('\n')

pattern(3,5,8)

Output :

*         *         *         

*         *         *         

*         *         *         

*         *         *         

*         *         *

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Alternatively to printing out tuples / expanding the tuples, you could simply print a string built by concatenating the different string parts using +, e.g.

def pattern(s, r, g):
    for i in range(r):
        print(" " * g + ("*" + " " * g) * s, end="\n")


pattern(2, 3, 4)

Output:

     *      *
     *      *                                                    
     *      * 

Note that end="\n" is superfluous here, and there seems to be no diagonal pattern.

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Comments
  • but in that case i only get one star without the stars repeating for the number specified in the arguments.
  • Do you want commas and quotes in output?
  • no i do not! i only need the stars
  • i'm using python 3
  • I don't see any diagonal pattern. Is it a work in progress? How should it look like at the end?
  • Ah i see! Thanks so much! It works perfectly well now! I was not aware of unpacking the tuple using the asterisk!