Code Issues

Question

What is wrong with this code? It's a simple Unicode converter, and when I type a valid number, like 43, it works and prints 43 ---> +, but when I type a valid character like g, it produces an error. I can't figure out what's wrong with it.

y = False

def ntoc(n):
try:
print(str(n) + ' ---> ' + chr(n))
except ValueError:
print('Invalid Number')

def cton(c):
try:
print(str(c) + ' ---> ' + str(ord(c)))
except ValueError:
print('Invalid Character')
y = True

x = input('Type Unicode value or character: ')
try:
x = int(x)
except ValueError:
cton(x)
if y == False:
ntoc(x)

Answer 1

def cton(c):
global y # <-- add this line
try:

Answer 2

Oh, I see. In the function cton I was creating a local variable y and assigning it the value True, not reassigning the global variable y. The line of code

global y

tells the interpreter that when it references y to use the global variable, not the local variable. Thanks Kirk Schafer! 👍🏻

Answer 3

You got it and nice summary :)