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Python program to convert ASCII to Binary

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  • Difficulty Level : Basic
  • Last Updated : 07 Aug, 2022
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In this article, we are going to discuss the conversion of ASCII to Binary in the Python programming language.

Method 1: Using binascii module

Binascii helps convert between binary and various ASCII-encoded binary representations.

a2b_uu() function:  Here the “uu” stands for “UNIX-to-UNIX encoding” which takes care of the data conversion from strings to binary and ASCII values according to the specified program. The a2b_uu() function is used to convert the specified ASCII format to its corresponding binary equivalent.

Syntax: a2b_uu(Text)

Parameter: This function accepts a single parameter which is illustrated below:

  • Text: This is the specified ASCII string that is going to be converted into its binary equivalent.

Return Values: This function returns the binary equivalent.

Example: Convert  ASCII to binary using Python

Python3




# Python program to illustrate the
# conversion of ASCII to Binary
 
# Importing binascii module
import binascii
 
# Initializing a ASCII string
Text = "21T9'(&ES(&$@0U,@4&]R=&%L"
 
# Calling the a2b_uu() function to
# Convert the ascii string to binary
Binary = binascii.a2b_uu(Text)
 
# Getting the Binary value
print(Binary)

Output:

b'GFG is a CS Portal'

Method 2: Using Built-in Types

Firstly, call string.encode() function to turn the specified string into an array of bytes and then call int.from_bytes(byte_array, byte_order) with byte_order as “big” to convert the byte_array into a binary integer. Finally, call bin(binary_int) to convert binary_int to a string of binary characters.

Example: Convert  ASCII to binary using Python

Python3




# Python program to illustrate the
# conversion of ASCII to Binary
 
# Calling string.encode() function to
# turn the specified string into an array
# of bytes
byte_array = "GFG".encode()
 
# Converting the byte_array into a binary
# integer
binary_int = int.from_bytes(byte_array, "big")
 
# Converting binary_int to a string of
# binary characters
binary_string = bin(binary_int)
 
# Getting the converted binary characters
print(binary_string)

Output:

0b10001110100011001000111

The Time and Space Complexity of all the methods is :

Time Complexity: O(logn)

Space Complexity: O(n)


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