Remove b python – How to Remove ‘b’ in front of String in Python?

Remove b python: If you’re experienced with Python, you’re probably aware of the many Python data types, such as strings and bytes.
You may have come across strings containing “b” as a prefix while programming. What is the significance of the b in front of the string? What does it represent, and why is it used? Furthermore, how do you get removed of it? How to Remove B’ Prefix Python, Python Remove B’ From String, Remove B’ In Python, Remove B In Front Of String Python, Remove ‘B From String Python, Python Remove B”, Python B String, Remove B From Byte String Python.

‘b’ in front of String:

b before string python: The ‘b’ notations before a string are used to indicate that it is a byte string. A byte string is an array of bytes made up of integers ranging from 0 to 255. A character string, on the other hand, is merely a sequence of characters.

The b prefix is frequently ignored in Python versions 2 and below. In version 3, however, the same instantiates/specifies a byte object rather than an ordinary string object.

Example

# Give the first string as static input and store it in a variable.
gvn_fststr = 'Hello Btechgeeks' 
# Print the datatype of the given first string using the type() function
# by passing the first string as an argument to it.
print("The datatype of the given first string:")
print(type(gvn_fststr))  
# Give the second string as static input and store it in a variable.
gvn_scndstr = b'Hello Btechgeeks' 
# Print the datatype of the given second string using the type() function
# by passing the second string as an argument to it.
print("The datatype of the given second string:")
print(type(gvn_scndstr))

Output:

The datatype of the given first string:
<class 'str'>
The datatype of the given second string:
<class 'bytes'>

Here both the strings are the same, but their datatypes differ.

encode() function:

Remove.b: Here’s another example where we take a character string as input and convert it to a byte string.

# Give the string as static input and store it in a variable.
gvn_str = 'Hello Btechgeeks' 
# Convert the given character string into a byte string using the
# encode() function and print it. 
print(gvn_str.encode())

Output:

b'Hello Btechgeeks'

How to Remove ‘b’ in front of String in Python?

Python b in front of string: There are several methods to remove ‘b’ i.e, convert a byte string to a character string. Some of them are:

Method #1: Using decode() function

B in front of string python: The decode() function is used to remove a string’s prefix b. The function converts from the encoding scheme in which the argument string is encoded to the desired encoding scheme, removing the b prefix.

Approach:

  • Give the string as static input and store it in a variable.
  • Print the datatype of the given string using the type() function by passing the given string as an argument to it.
  • Apply the decode() function on the given first string to get the character string by removing the prefix ‘b’ of a string.
  • Print the above-obtained character string
  • Print the datatype of the above string using the type() function by passing the string as an argument to it.
  • The Exit of the Program.

Below is the implementation:

# Give the string as static input and store it in a variable.
gvn_str = b'Hello Btechgeeks' 
# Print the datatype of the given string using the type() function
# by passing the given string as an argument to it.
print("The datatype of the given string:")
print(type(gvn_str))  
print()
# Apply decode() function on the given first string to get the character string
# by removing the prefix 'b' of a string
charactr_str = gvn_str.decode()
# Print the above obtained character string
print("The obtained character string = ", charactr_str)
print()
# Print the datatype of the above string using the type() function
# by passing the string as an argument to it.
print("The datatype of the string after applying decode() function:")
print(type(charactr_str))

Output:

The datatype of the given string:
<class 'bytes'>

The obtained character string = Hello Btechgeeks

The datatype of the string after applying decode() function:
<class 'str'>

Method #2: Using str() function

Python \b: The str() function gives the string version of the object.

Approach:

  • Give the string as static input and store it in a variable.
  • Print the datatype of the given string using the type() function by passing the given string as an argument to it.
  • Pass the given string, ‘UTF-8’ as arguments to the str() function to convert it into a string
  • Print the above-obtained character string
  • Print the datatype of the above string using the type() function by passing the string as an argument to it.
  • The Exit of the Program.

Below is the implementation:

# Give the string as static input and store it in a variable.
gvn_str = b'Hello Btechgeeks' 
# Print the datatype of the given string using the type() function
# by passing the given string as an argument to it.
print("The datatype of the given string:")
print(type(gvn_str))  
print()

# Pass the given string, 'UTF-8' as arguments to the str() function
# to convert it into a string
charactr_str = str(gvn_str, 'UTF-8')
# Print the above obtained character string
print("The obtained character string = ", charactr_str)
print()

# Print the datatype of the above string using the type() function
# by passing the string as an argument to it.
print("The datatype of the string after applying str() function:")
print(type(charactr_str))

Output:

The datatype of the given string:
<class 'bytes'>

The obtained character string = Hello Btechgeeks

The datatype of the string after applying str() function:
<class 'str'>

Method #3: Using codecs module

\b python: The codecs. decode() method converts a binary string to its normal form.

Approach:

  • Import codecs module using the import keyword.
  • Give the string as static input and store it in a variable.
  • Print the datatype of the given string using the type() function by passing the given string as an argument to it.
  • Pass the given string as an argument to the decode() function of the codecs module to convert the given binary string to a normal string.
  • Here it removes the prefix ‘b’ of a string
  • Print the above-obtained character string
  • Print the datatype of the above string using the type() function by passing the string as an argument to it.
  • The Exit of the Program.

Below is the implementation:

# Import codecs module using the import keyword.
import codecs
# Give the string as static input and store it in a variable.
gvn_str = b'Hello Btechgeeks' 
# Print the datatype of the given string using the type() function
# by passing the given string as an argument to it.
print("The datatype of the given string:")
print(type(gvn_str))  
print()
# Pass the given string as an argument to the decode() function of the codecs module 
# to convert the given binary string to normal string.
# Here it removes the prefix 'b' of a string
charactr_str = codecs.decode(gvn_str)
# Print the above obtained character string
print("The obtained character string = ", charactr_str)
print()
# Print the datatype of the above string using the type() function
# by passing the string as an argument to it.
print("The datatype of the string after applying codecs.decode() function:")
print(type(charactr_str))

Output:

The datatype of the given string:
<class 'bytes'>

The obtained character string = Hello Btechgeeks

The datatype of the string after applying codecs.decode() function:
<class 'str'>

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