print([1, 2, 3]) # Output: [1, 2, 3] # Desired: [1 2 3]
Note that this is slightly different to those two problem variants—feel free to click there to learn more about those problem variants:
🌍 Recommended Tutorial: How to Print a List Without Brackets and Commas in Python?
Method 1: Unpacking Multiple Values into Print Function
lst = [1, 2, 3] print('[', *lst, ']') # [ 1 2 3 ]
Method 2: String Replace Method
my_list = [1, 2, 3] # Convert List to String s = str(my_list) print(s) # [1, 2, 3] # Replace Separating Commas s = s.replace(',', '') # Print List Without Commas print(s) # [1 2 3]
Method 3: String Join With Generator Expression
my_list = [1, 2, 3] print('[', ' '.join(str(x) for x in my_list), ']') # Output: [ 1 2 3 ]
💡 Note: Combining the
join() method with a generator expression and string concatenation is the recommended approach of choice if you want to convert a list to a string without commas instead of printing it.
Here’s an example:
my_list = [1, 2, 3] s = '[' + ' '.join(str(x) for x in my_list) + ']' print(s) # Output: [ 1 2 3 ]
Method 4: Print NumPy Array
Sometimes it is sufficient to use the NumPy default output that is without separating commas. For example, if you print a list it yields
[1, 2, 3]. And if you print an array it yields
[1 2 3]. You can easily convert a list to a NumPy array using the
import numpy as np my_list = [1, 2, 3] print(np.array(my_list)) # Output: [1 2 3]
👉 Recommended Tutorial: How to Install NumPy?
Where to Go From Here?
Enough theory. Let’s get some practice!
Coders get paid six figures and more because they can solve problems more effectively using machine intelligence and automation.
To become more successful in coding, solve more real problems for real people. That’s how you polish the skills you really need in practice. After all, what’s the use of learning theory that nobody ever needs?
You build high-value coding skills by working on practical coding projects!
Do you want to stop learning with toy projects and focus on practical code projects that earn you money and solve real problems for people?
🚀 If your answer is YES!, consider becoming a Python freelance developer! It’s the best way of approaching the task of improving your Python skills—even if you are a complete beginner.
If you just want to learn about the freelancing opportunity, feel free to watch my free webinar “How to Build Your High-Income Skill Python” and learn how I grew my coding business online and how you can, too—from the comfort of your own home.
Question: How did the programmer die in the shower? ☠️
❗ Answer: They read the shampoo bottle instructions:
Lather. Rinse. Repeat.
While working as a researcher in distributed systems, Dr. Christian Mayer found his love for teaching computer science students.
To help students reach higher levels of Python success, he founded the programming education website Finxter.com that has taught exponential skills to millions of coders worldwide. He’s the author of the best-selling programming books Python One-Liners (NoStarch 2020), The Art of Clean Code (NoStarch 2022), and The Book of Dash (NoStarch 2022). Chris also coauthored the Coffee Break Python series of self-published books. He’s a computer science enthusiast, freelancer, and owner of one of the top 10 largest Python blogs worldwide.
His passions are writing, reading, and coding. But his greatest passion is to serve aspiring coders through Finxter and help them to boost their skills. You can join his free email academy here.