<p>In this post, let's take a quick look at the <code>format()</code> method in Python.</p>
<h2 id="what-is-format">What is <code>.format()</code>?</h2>
<p><code>.format()</code> is a special function in Python that is used with <code>print()</code> to customize the output format easily.  </p>
<h3 id="example">Example</h3>
<p>Consider the below code, </p>
<pre><code class="lang-python">a = <span class="hljs-number">10</span>
b = <span class="hljs-number">20</span>
c = <span class="hljs-number">30</span>
</code></pre>
<p>We want to print the output like below,</p>
<pre><code class="lang-python"><span class="hljs-number">10</span> + <span class="hljs-number">20</span> - <span class="hljs-number">30</span> = <span class="hljs-number">0</span>
</code></pre>
<p>Generally we would do something like below,</p>
<pre><code class="lang-python">print(a,<span class="hljs-string">"+"</span>,b,<span class="hljs-string">"-"</span>,c,<span class="hljs-string">"="</span>,a+b-c)
</code></pre>
<p>This works fine! but it's boring and looks more complex than a Christopher Nolan film. This is not Python known for! </p>
<h2 id="lets-do-it-in-python-way">Lets do it in Python way 😎</h2>
<p>Here comes the <code>format()</code> function.</p>
<p>Using <code>format()</code> the above can be achieved as below,</p>
<h3 id="type-1">Type 1</h3>
<pre><code class="lang-python">print(<span class="hljs-string">"{} + {} - {} = {}"</span>.format(a,b,c,a+b-c))
</code></pre>
<p>That's it! this looks much better than the original implementation.</p>
<h3 id="type-2">Type 2</h3>
<p>We can also specify the index position for the format method if you want,</p>
<pre><code class="lang-python">print(<span class="hljs-string">"{0} + {1} - {2} = {3}"</span>.format(a,b,c,a+b-c))
</code></pre>
<p>The first argument in the <code>format()</code> will replace the <code>{0}</code> and the second argument in <code>format()</code> will replace <code>{1}</code> and so on.</p>
<h3 id="type-3">Type 3</h3>
<p>We can also use keywords instead of index.</p>
<pre><code class="lang-python">print(<span class="hljs-string">"{0} + {1} - {2} = {res}"</span>.format(a,b,c, res = a+b-c))
</code></pre>
<p>Here, the <code>res</code> will be replaced by its definition.</p>
<p>That's it devs. Follow for more awesome tutorials ❤</p>


In this post, let's take a quick look at the `format()` method in Python.

## What is `.format()`?

`.format()` is a special function in Python that is used with `print()` to customize the output format easily.  

### Example

Consider the below code, 

```python
a = 10
b = 20
c = 30
```
We want to print the output like below,
```python
10 + 20 - 30 = 0
```
Generally we would do something like below,

```python
print(a,"+",b,"-",c,"=",a+b-c)
```
This works fine! but it's boring and looks more complex than a Christopher Nolan film. This is not Python known for! 

## Lets do it in Python way 😎

Here comes the `format()` function.

Using `format()` the above can be achieved as below,

### Type 1

```python
print("{} + {} - {} = {}".format(a,b,c,a+b-c))
```
That's it! this looks much better than the original implementation.

### Type 2

We can also specify the index position for the format method if you want,

```python
print("{0} + {1} - {2} = {3}".format(a,b,c,a+b-c))
```
The first argument in the `format()` will replace the `{0}` and the second argument in `format()` will replace `{1}` and so on.

### Type 3

We can also use keywords instead of index.
```python
print("{0} + {1} - {2} = {res}".format(a,b,c, res = a+b-c))
```
Here, the `res` will be replaced by its definition.

That's it devs. Follow for more awesome tutorials ❤







Manitej Pratha's Blog

Manitej Pratha's Blog

.format in Python ⚙

What is `.format()`?

Example

Lets do it in Python way 😎

Type 1

Type 2

Type 3