# Author:  James Tam
# Version: October 25, 2022
# Learning: illustrating how incorrectly formed for-loops by including an
# an equivalent while-loop.

#Error handling while-loop prevents the program from proceeding until non-empty
#string entered.
EMPTY = ""
aStr = EMPTY
while (aStr == EMPTY):
    aStr = input("Type in a sequence of charcters: ")
print("You typed in '%s'" %aStr)

#Inappropriately replacing a loop with a branch
aStr = EMPTY
if (aStr == EMPTY):
    aStr = input("Type in a sequence of charcters: ")
print("You typed in '%s'" %aStr)