How to Print ASCII Graphics from a Python Array

Discover an easy solution to print ASCII graphics from a Python list! Learn how to transform your data into a clear and formatted output in your terminal.
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How to Print ASCII Graphics from a Python Array: A Simple Guide

Printing ASCII graphics from a data structure like a list in Python can be a bit tricky if you're not familiar with how to handle lists and strings effectively. If you've found yourself struggling to display your ASCII art correctly, you're not alone! In this guide, we'll learn how to take a two-dimensional list and print it in a visually appealing way that resembles the intended layout.

Understanding Your Data Structure

You have a list of lists that looks like this:

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Here, each inner list represents a row of characters where * represents a filled position and - represents an unfilled one. Your goal is to print this data so that when you run your Python script, it outputs the following in your terminal:

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The Problem: Previous Attempts

Initially, you may have tried using:

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This will simply print the list structure, like so:

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Next, you might have tried accessing individual elements directly but ended up with spaces between your characters:

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This method results in an output like this:

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While this displays the values, it’s not the desired output format since the spaces between characters are not what we're looking for.

The Solution: Using join() Method

The solution to format the output correctly is to use the join() method in Python. This method combines elements of a list into a single string, removing spaces and allowing for custom formatting.

Here’s the Step-by-Step Solution:

Iterate Through the List: You'll want to loop through each sublist in your main list.

Join Each Sublist: For every inner list, use the join() method to concatenate the elements together with no spaces in between.

Print It Out: After joining, print each joined string.

Here’s the code that achieves this:

[[See Video to Reveal this Text or Code Snippet]]

Explanation of the Code:

for l in a: – This line initiates a loop that goes through each list within the main list a.

print(''.join(l)) – This line takes each inner list l, joins the characters without any spaces, and prints the complete string.

Running the Code

When you run the entire script with the provided solution, your terminal will beautifully display the ASCII graphic as you intended:

[[See Video to Reveal this Text or Code Snippet]]

Conclusion

Now you have a clean, effective way to display your ASCII graphics using Python. By utilizing the join() method, not only do you avoid unwanted spaces, but you also maintain the formatting you desire.

Feel free to experiment further with different characters and shapes to expand your ASCII art skills! Happy coding!