The first line should prompt the user to enter the primary string ('PS').The second line should ask for the character to be replaced ('c').The third line should request the replacement string ('s').

Sure, here is a Python code snippet that does what you're asking for:

# Prompt the user to enter the primary string
PS = input("Please enter the primary string: ")

# Ask for the character to be replaced
c = input("Please enter the character to be replaced: ")

# Request the replacement string
s = input("Please enter the replacement string: ")

# Replace the character in the primary string
new_string = PS.replace(c, s)

print("The new string is: ", new_string)

This code first asks the user to input the primary string, the character to be replaced, and the replacement string. It then uses the replace() function to replace all occurrences of the specified character in the primary string with the replacement string. Finally, it prints out the new string.

Sure, I can help with that. Here's a simple Python script that does what you're asking for:

# Step 1: Prompt the user to enter the primary string
PS = input("Please enter the primary string: ")

# Step 2: Ask for the character to be replaced
c = input("Please enter the character to be replaced: ")

# Step 3: Request the replacement string
s = input("Please enter the replacement string: ")

# Replace the character in the primary string
new_string = PS.replace(c, s)

print("The new string is: ", new_string)

This script first asks the user to input the primary string, the character to be replaced, and the replacement string. It then uses the replace() function to replace all occurrences of the specified character in the primary string with the replacement string. Finally, it prints out the new string.

Sure, here is a Python code snippet that does what you asked for:

# Prompt the user to enter the primary string
PS = input("Please enter the primary string: ")

# Ask for the character to be replaced
c = input("Please enter the character to be replaced: ")

# Request the replacement string
s = input("Please enter the replacement string: ")

# Replace the character in the primary string
new_string = PS.replace(c, s)

print("The new string is: ", new_string)

This code first prompts the user to enter the primary string, the character to be replaced, and the replacement string. It then uses the replace() function to replace all occurrences of the specified character in the primary string with the replacement string. Finally, it prints the new string.