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

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

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<h2>Problem Formulation</h2>
<p>Given a <a rel="noreferrer noopener" title="The Ultimate Guide to Python Lists" href="https://blog.finxter.com/python-lists/" target="_blank">Python list </a>of elements. </p>
<p>If you print the list to the shell using <code>print([1, 2, 3])</code>, the output is enclosed in square brackets and separated by commas like so: <code>"[1, 2, 3]"</code>. </p>
<p>But you want the list without brackets and commas like so: <code>1 2 3</code>. </p>
<pre class="EnlighterJSRAW" data-enlighter-language="python" data-enlighter-theme="" data-enlighter-highlight="3" data-enlighter-linenumbers="" data-enlighter-lineoffset="" data-enlighter-title="" data-enlighter-group="">print([1, 2, 3])
# Output: [1, 2, 3]
# Desired: 1 2 3</pre>
<p><strong>How to print the list without enclosing brackets and without separating commas in Python?</strong></p>
<p class="has-base-background-color has-background"><img src="https://s.w.org/images/core/emoji/14.0.0/72x72/1f30d.png" alt="?" class="wp-smiley" style="height: 1em; max-height: 1em;" /> <strong>Recommended Tutorial</strong>: <a href="https://blog.finxter.com/how-to-print-a-list-without-brackets-in-python/" data-type="post" data-id="34638">How</a><a href="https://blog.finxter.com/how-to-print-a-list-without-brackets-in-python/" data-type="post" data-id="34638" target="_blank" rel="noreferrer noopener"> </a><a href="https://blog.finxter.com/how-to-print-a-list-without-brackets-in-python/" data-type="post" data-id="34638">to Print a List Without Brackets in Python?</a></p>
<h2>Method 1: Unpacking Multiple Values into Print Function</h2>
<p>The <a title="What is the Asterisk / Star Operator (*) in Python?" rel="noreferrer noopener" href="https://blog.finxter.com/what-is-asterisk-in-python/" target="_blank">asterisk operator</a> <code>*</code> is used to unpack an <a rel="noreferrer noopener" title="Iterators, Iterables and Itertools" href="https://blog.finxter.com/iterators-iterables-and-itertools/" target="_blank">iterable </a>into the argument list of a given function. </p>
<p class="has-global-color-8-background-color has-background">You can unpack all list elements into the <code><a title="Python print()" rel="noreferrer noopener" href="https://blog.finxter.com/python-print/" target="_blank">print()</a></code> function to print all values individually, separated by an empty space per default (that you can override using the <code>sep</code> argument). For example, the expression <code>print(*my_list)</code> prints the elements in <code>my_list</code>, empty space separated, without the enclosing square brackets and without the separating commas!</p>
<p>Here’s an example:</p>
<pre class="EnlighterJSRAW" data-enlighter-language="python" data-enlighter-theme="" data-enlighter-highlight="2" data-enlighter-linenumbers="" data-enlighter-lineoffset="" data-enlighter-title="" data-enlighter-group="">my_list = [1, 2, 3]
print(*my_list)
# Output: 1 2 3</pre>
<p class="has-base-background-color has-background"><img src="https://s.w.org/images/core/emoji/14.0.0/72x72/2139.png" alt="ℹ" class="wp-smiley" style="height: 1em; max-height: 1em;" /> <strong>Note</strong>: If you want a different separating character, you can set the <code><a rel="noreferrer noopener" href="https://blog.finxter.com/the-separator-and-end-arguments-of-the-python-print-function/" data-type="post" data-id="4645" target="_blank">sep</a></code> argument of the <code>print()</code> function. For example, <code>print(*my_list, sep='|')</code> will use the vertical bar <code>'|'</code> as a separating character.</p>
<p>Here’s an example:</p>
<pre class="EnlighterJSRAW" data-enlighter-language="python" data-enlighter-theme="" data-enlighter-highlight="2" data-enlighter-linenumbers="" data-enlighter-lineoffset="" data-enlighter-title="" data-enlighter-group="">my_list = [1, 2, 3]
print(*my_list, sep='|')
# Output: 1|2|3</pre>
<p>You can learn about the ins and outs of the built-in <code><a href="https://blog.finxter.com/python-print/" target="_blank" rel="noreferrer noopener" title="Python print()">print()</a></code> function in the following video:</p>
<figure class="wp-block-embed-youtube wp-block-embed is-type-video is-provider-youtube"><a href="https://blog.finxter.com/how-to-print-a-list-without-brackets-and-commas-in-python/"><img src="https://blog.finxter.com/wp-content/plugins/wp-youtube-lyte/lyteCache.php?origThumbUrl=https%3A%2F%2Fi.ytimg.com%2Fvi%2FyXhEvg8Domk%2Fhqdefault.jpg" alt="YouTube Video"></a><figcaption></figcaption></figure>
<p>To master the basics of unpacking, feel free to check out this video on the asterisk operator:</p>
<figure class="wp-block-embed-youtube wp-block-embed is-type-video is-provider-youtube"><a href="https://blog.finxter.com/how-to-print-a-list-without-brackets-and-commas-in-python/"><img src="https://blog.finxter.com/wp-content/plugins/wp-youtube-lyte/lyteCache.php?origThumbUrl=https%3A%2F%2Fi.ytimg.com%2Fvi%2F-nLkYmIevwY%2Fhqdefault.jpg" alt="YouTube Video"></a><figcaption></figcaption></figure>
<h2>Method 2: String Replace Method</h2>
<p class="has-global-color-8-background-color has-background">A simple way to print a list without commas and square brackets is to first <a href="https://blog.finxter.com/convert-list-to-string/" data-type="post" data-id="9927">convert </a><a href="https://blog.finxter.com/convert-list-to-string/" data-type="post" data-id="9927" target="_blank" rel="noreferrer noopener">t</a><a href="https://blog.finxter.com/convert-list-to-string/" data-type="post" data-id="9927">he list to a string</a> using the built-in <code><a href="https://blog.finxter.com/python-str-function/" data-type="post" data-id="23735" target="_blank" rel="noreferrer noopener">str()</a></code> function. Then modify the resulting string representation of the list by using the <code><a href="https://blog.finxter.com/python-string-replace-2/" data-type="post" data-id="26083" target="_blank" rel="noreferrer noopener">string.replace()</a></code> method until you get the desired result.</p>
<p>Here’s an example:</p>
<pre class="EnlighterJSRAW" data-enlighter-language="python" data-enlighter-theme="" data-enlighter-highlight="9" data-enlighter-linenumbers="" data-enlighter-lineoffset="" data-enlighter-title="" data-enlighter-group="">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)</pre>
<p>The result is a string without commas and without brackets:</p>
<pre class="EnlighterJSRAW" data-enlighter-language="generic" data-enlighter-theme="" data-enlighter-highlight="" data-enlighter-linenumbers="" data-enlighter-lineoffset="" data-enlighter-title="" data-enlighter-group="">1
2
3</pre>
<h2>Method 3: String Join With Generator Expression</h2>
<p class="has-pale-cyan-blue-background-color has-background">You can print a list without brackets and without commas. Use the <code><a rel="noreferrer noopener" href="https://blog.finxter.com/python-string-join/" data-type="post" data-id="26062" target="_blank">string.join()</a></code> method on any separator string such as <code>' '</code> or <code>'\t'</code>. Pass a <a rel="noreferrer noopener" title="How to Use Generator Expressions in Python Dictionaries" href="https://blog.finxter.com/how-to-use-generator-expressions-in-python-dictionaries/" target="_blank">generator expression</a> to convert each list element to a string using the <code><a rel="noreferrer noopener" href="https://blog.finxter.com/python-str-function/" data-type="post" data-id="23735" target="_blank">str()</a></code> built-in function. For example, the expression <code>print(' '.join(str(x) for x in my_list))</code> prints <code>my_list</code> to the shell without enclosing brackets and commas.</p>
<pre class="EnlighterJSRAW" data-enlighter-language="python" data-enlighter-theme="" data-enlighter-highlight="2" data-enlighter-linenumbers="" data-enlighter-lineoffset="" data-enlighter-title="" data-enlighter-group="">my_list = [1, 2, 3]
print(' '.join(str(x) for x in my_list))
# Output: 1 2 3</pre>
<p>You can modify the separator string on which you join to customize the appearance of the <a href="https://blog.finxter.com/python-lists/" data-type="post" data-id="7332" target="_blank" rel="noreferrer noopener">list</a>:</p>
<pre class="EnlighterJSRAW" data-enlighter-language="python" data-enlighter-theme="" data-enlighter-highlight="2" data-enlighter-linenumbers="" data-enlighter-lineoffset="" data-enlighter-title="" data-enlighter-group="">my_list = [1, 2, 3]
print('xxx'.join(str(x) for x in my_list))
# Output: 1xxx2xxx3</pre>
<ul>
<li>The <code><a href="https://blog.finxter.com/python-string-join/" title="Python String join()" target="_blank" rel="noreferrer noopener">string.join(iterable)</a></code> method concatenates the elements in the given iterable.</li>
<li>The <code><a href="https://blog.finxter.com/python-str-function/" title="Python str() Function" target="_blank" rel="noreferrer noopener">str(object)</a></code> built-in function converts a given object to its string representation.</li>
<li><a href="https://blog.finxter.com/list-comprehension/" target="_blank" rel="noreferrer noopener" title="https://blog.finxter.com/list-comprehension/">Generator expressions</a> or list comprehensions are concise <a href="https://pythononeliners.com/" target="_blank" rel="noreferrer noopener" title="https://pythononeliners.com/">one-liner </a>ways to create a new iterable based by reusing elements from another iterable.</li>
</ul>
<p>You can dive deeper into generators in the following video:</p>
<figure class="wp-block-embed-youtube wp-block-embed is-type-video is-provider-youtube"><a href="https://blog.finxter.com/how-to-print-a-list-without-brackets-and-commas-in-python/"><img src="https://blog.finxter.com/wp-content/plugins/wp-youtube-lyte/lyteCache.php?origThumbUrl=https%3A%2F%2Fi.ytimg.com%2Fvi%2F2Ls0b1gjz2A%2Fhqdefault.jpg" alt="YouTube Video"></a><figcaption></figcaption></figure>
<h2>Where to Go From Here?</h2>
<p>Enough theory. Let’s get some practice!</p>
<p>Coders get paid six figures and more because they can solve problems more effectively using machine intelligence and automation. </p>
<p>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?</p>
<p><strong>You build high-value coding skills by working on practical coding projects!</strong></p>
<p>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?</p>
<p class="has-global-color-8-background-color has-background"><img src="https://s.w.org/images/core/emoji/14.0.0/72x72/1f680.png" alt="?" class="wp-smiley" style="height: 1em; max-height: 1em;" /> If your answer is <strong><em>YES!</em></strong>, consider becoming a <a rel="noreferrer noopener" href="https://blog.finxter.com/become-python-freelancer-course/" data-type="page" data-id="2072" target="_blank">Python freelance developer</a>! It’s the best way of approaching the task of improving your Python skills—even if you are a complete beginner.</p>
<p>If you just want to learn about the freelancing opportunity, feel free to watch my free webinar <a rel="noreferrer noopener" href="https://blog.finxter.com/webinar-freelancer/" target="_blank">“How to Build Your High-Income Skill Python”</a> and learn how I grew my coding business online and how you can, too—from the comfort of your own home.</p>
<p><a href="https://blog.finxter.com/webinar-freelancer/" target="_blank" rel="noreferrer noopener">Join the free webinar now!</a></p>
<h2>Programmer Humor</h2>
<p class="has-global-color-8-background-color has-background"><img src="https://s.w.org/images/core/emoji/14.0.0/72x72/2753.png" alt="❓" class="wp-smiley" style="height: 1em; max-height: 1em;" /> <code><strong>Question:</strong> How did the programmer <strong><em>die</em></strong> in the shower? &#x2620;</p>
<p>&#x2757; <strong>Answer</strong>: They read the shampoo bottle instructions: <br /><em><strong>Lather. Rinse. Repeat.</strong></em></code></p>
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