The **`binascii`** is a widely used Python library for ASCII-encoded binary representations. It contains several methods for converting to binary from ASCII or hex, and vice versa.

We use **`binascii.b2a_hqx`** for binary-to-ASCII translation in hexbin4 format. The method returns the resulting string. In order to use this function, we need to note a few things. 
1. The string parameter should be #key# RLE-coded : Run-length encoding (RLE) is a lossless compression technique to store the count of consecutive characters. For example, "Hellllooooo" translates to "Hel-4o-5", showing that 'l occurs 4 times and 'o' occurs five times. #key#
2. The length of string should be divisible by 3. 

> This function works in opposite to the `a2b_hqx()` method. 




# Syntax
```
binascii.b2a_hqx(data)
```
This method returns a binary string.

# Code
Let's work through a few coding examples using `b2a_hqx`. 

import binascii

data = "Hello World"

## convert to binary
text_bytes = bytes(data,'utf-8')
## perform b2a_hqx
print(data, "==>", binascii.b2a_hqx(text_bytes))

data1 = "Welcome to educative"
## convert to binary
text_bytes1 = bytes(data1,'utf-8')
## perform b2a_hqx
print(data1, "==>", binascii.b2a_hqx(text_bytes1))


What is binascii.b2a_hqx in Python?

The binascii is a widely used Python library for ASCII-encoded binary representations. It contains several methods for converting to binary from ASCII or hex, and vice versa. We use binascii.b2a_hqx for binary-to-ASCII translation in hexbin4 format. The method returns the resulting string. In order to use this function, we need to note a few things.  The string parameter should be RLE-codedRun-length encoding (RLE) is a lossless compression technique to store the count of consecutive characters. For example, “Hellllooooo” translates to “Hel-4o-5”, showing that  l occurs 4 times and  o  occurs five times. The length of string should be divisible by 3.   This function works in opposite to the a2b_hqx() method.  