The best and short way to convert a user input string to bytes is “encode()” method.
 

Code:-

Str1 = input("Enter a String: ")
byt_obj = Str1.encode("utf-8")
print(byt_obj)
print(type(byt_obj))

the encode() method on the string variable with the argument 'utf-8' to convert it to bytes. The resulting bytes object is assigned to the byt_obj variable.

There are various methods in python to convert a string to a byte array.

One of the best methods for this task is to use string_name.encode(encoding).

It is implemented in the following code:

string = "Welcome to Mindstick Forum"
#converting string to byte
byte_array = string.encode()
print("The byte converted string is  : " + str(byte_array) + ", type : " + str(type(byte_array)))

OUTPUT:
The byte converted string is  : b'Welcome to Mindstick Forum', type : <class 'bytes'>

Here, the encode() function is used to convert the string to a byte.

We can also use bytes() function for the same but encode() is more efficient as it can be called directly on a string object. We can skip a level of indirection by not using bytes() which points to CPython Library and then implicitly calls encode() for encoding the string.

The default encoding of encode() is ‘utf-8’ and you don't have to include it in the code if that's the encoding you want to use.  Otherwise, you have to explicitly specify the encoding.