python - Using str.replace in a for loop

Question

I am working on an assignment that is asking me to change the below code so that line 4 uses str.isalnum and lines 5-7 become uses only one line using str.replace.

s = 'p55w-r@d'
result = ''
for c in s:
    if(c not in 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789'):
        result += '*'
    else:
        result += c
print(result)

This is what I have so far:

s = 'p55w-r@d'
result = ''
for c in s:
    if(c.isalnum() == False):
        result += c.replace(c,'*')
print(result)

The output for the second code needs to equal the output of code 1:

p55w*r*d

Answer 1

Just add the else part and you are done :

s = 'p55w-r@d'
result = ''
for c in s:
    if(c.isalnum() == False):
        result += c.replace(c,'*')
    else:
        result +=c 
print(result)

p55w*r*d