[Tut] How to Print a List Without Brackets and Commas in Python?

[Tut] How to Print a List Without Brackets and Commas in Python? - Printable Version

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[Tut] How to Print a List Without Brackets and Commas in Python? - xSicKxBot - 08-27-2022

How to Print a List Without Brackets and Commas in Python?

5/5 – (1 vote)

Problem Formulation

Given a Python listof elements.

If you print the list to the shell using

Code:
print([1, 2, 3])

, the output is enclosed in square brackets and separated by commas like so:

Code:
"[1, 2, 3]"

.

But you want the list without brackets and commas like so:

Code:
1 2 3

Code:
print([1, 2, 3])
# Output: [1, 2, 3]
# Desired: 1 2 3

How to print the list without enclosing brackets and without separating commas in Python?

Recommended Tutorial: How https://blog.finxter.com/how-to-print-a-list-without-brackets-in-python/to Print a List Without Brackets in Python?

Method 1: Unpacking Multiple Values into Print Function

The asterisk operator

Code:
*

is used to unpack an iterableinto the argument list of a given function.

You can unpack all list elements into the

Code:
print()

function to print all values individually, separated by an empty space per default (that you can override using the

Code:
sep

argument). For example, the expression

Code:
print(*my_list)

prints the elements in

Code:
my_list

, empty space separated, without the enclosing square brackets and without the separating commas!

Here’s an example:

Code:
my_list = [1, 2, 3]
print(*my_list)
# Output: 1 2 3

Note: If you want a different separating character, you can set the

Code:
sep

argument of the

Code:
print()

function. For example,

Code:
print(*my_list, sep='|')

will use the vertical bar

Code:
'|'

as a separating character.

Here’s an example:

Code:
my_list = [1, 2, 3]
print(*my_list, sep='|')
# Output: 1|2|3

You can learn about the ins and outs of the built-in

Code:
print()

function in the following video:

[Image: lyteCache.php?origThumbUrl=https%3A%2F%2...efault.jpg]

To master the basics of unpacking, feel free to check out this video on the asterisk operator:

Method 2: String Replace Method

A simple way to print a list without commas and square brackets is to first convert t he list to a string using the built-in

Code:
str()

function. Then modify the resulting string representation of the list by using the

Code:
string.replace()

method until you get the desired result.

Here’s an example:

Code:
my_list = [1, 2, 3] # Convert List to String
s = str(my_list)
print(s)
# [1, 2, 3] # Replace Separating Commas and Square Brackets
s = s.replace(', ', '\n').replace('[', '').replace(']', '') # Print List Without Commas and Brackets
print(s)

The result is a string without commas and without brackets:

Code:
1
2
3

Method 3: String Join With Generator Expression

You can print a list without brackets and without commas. Use the

Code:
string.join()

method on any separator string such as

Code:
' '

Code:
'\t'

. Pass a generator expression to convert each list element to a string using the

Code:
str()

built-in function. For example, the expression

Code:
print(' '.join(str(x) for x in my_list))

prints

Code:
my_list

to the shell without enclosing brackets and commas.

Code:
my_list = [1, 2, 3]
print(' '.join(str(x) for x in my_list))
# Output: 1 2 3

You can modify the separator string on which you join to customize the appearance of the list:

Code:
my_list = [1, 2, 3]
print('xxx'.join(str(x) for x in my_list))
# Output: 1xxx2xxx3

The
Code:
string.join(iterable)
method concatenates the elements in the given iterable.
The
Code:
str(object)
built-in function converts a given object to its string representation.
Generator expressions or list comprehensions are concise one-linerways to create a new iterable based by reusing elements from another iterable.

You can dive deeper into generators in the following video:

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.

Join the free webinar now!

Programmer Humor

Code:
Question: How did the programmer die in the shower? ☠

❗ Answer: They read the shampoo bottle instructions:
Lather. Rinse. Repeat.