To get a string from a given string where all occurrences of its first char have been changed to '$', except the first char itself.

# To get a string from a given string where all occurrences of its first char have
# been changed to '$', except the first char itself.

str = input("Enter a String : ")

if len(str)>0:
    fChar = str[0]
    str = str.replace(fChar,"$")
    str = fChar + str[1:]
    print(str)
else:
    print("String is empty.")

input("Press Enter to exit.")


Download Code..