Question

A bit shift is a procedure whereby the bits in a bit string are moved to the left or to the right.

For example, we can shift the bits in the string 1011 two places to the left to produce the string 1110. Note that the leftmost two bits are wrapped around to the right side of the string in this operation.

Define two scripts, shiftLeft.py and shiftRight.py, that expect a bit string as an input.

The script shiftLeft shifts the bits in its input one place to the left, wrapping the leftmost bit to the rightmost position.

The script shiftRight performs the inverse operation.

Each script prints the resulting string.

An example of shiftLeft.py input and output is shown below:

Enter a string of bits: Hello world!

ello world!H 

An example of shiftRight.py input and output is shown below:

Enter a string of bits: Hello world!

!Hello world 

Answer 1

Provided code is done as per your requirements.

• "Screen shot program code" for better understanding.
• "Code to copy" for run the program in your IDE.

shiftLeft.py

Code Image:

Sample Output:

Code to Copy:

#Implementation of shiftLeft method

#which shifts the bits in its input one

#place to tge left

def shiftLeft(bitstring):

    bitstring = bitstring[1:]+bitstring[0]

    #return as bit string format

    return bitstring

#Get the input from user

bits = input("Enter a string of bits: ")

#call the shiftLeft method which returns the value

# that is stored in leftShift

leftShift = shiftLeft(bits)

#Display the output

print()

print(leftShift)

print()

shiftRight.py

Code Image:

Sample Output:

Code to Copy:

#Implementation of shiftRight method

#which performs inverse operation

def shiftRight(bitstring):

    bitstring=bitstring[len(bitstring)-1] + bitstring[0:len(bitstring)-1]

    return bitstring

#Get the input from user

bits = input("Enter a string of bits: ")

#call the shiftRight method which performs

#inverse operation

rightShift = shiftRight(bits)

#Display the output

print()

print(rightShift)

print()

Answer 2

Simple Version, Shift Left:

s = input("Enter a string of bits: ")

s = s[1:]+s[0]

print(s)

Shift Right:

a = input("Enter a string of bits: ")

a=a[len(a)-1] + a[0:len(a)-1]

print(a)