Quiz Solution: Create Usernames

names = ["Joey Tribbiani", "Monica Geller", "Chandler Bing", "Phoebe Buffay"]
usernames = []

for name in names:
    usernames.append(name.lower().replace(" ", "_"))

print(usernames)

Output:

['joey_tribbiani', 'monica_geller', 'chandler_bing', 'phoebe_buffay']

Quiz Solution: Modify Usernames with Range

usernames = ["Joey Tribbiani", "Monica Geller", "Chandler Bing", "Phoebe Buffay"]

for i in range(len(usernames)):
    usernames[i] = usernames[i].lower().replace(" ", "_")

print(usernames)

Output:

['joey_tribbiani', 'monica_geller', 'chandler_bing', 'phoebe_buffay']

Quiz Solution: Tag Counter

You can use string indexing to find out if each token begins and ends with angle brackets.

tokens = ['<greeting>', 'Hello World!', '</greeting>']

count = 0
for token in tokens:
    if token[0] == '<' and token[-1] == '>':
        count += 1

print(count)

Output:

2

Quiz Solution: Create an HTML List

items = ['first string', 'second string']
html_str = "<ul>\n"          # The "\n" here is the end-of-line char, causing
                             # chars after this in html_str to be on next line

for item in items:
    html_str += "<li>{}</li>\n".format(item)
html_str += "</ul>"

print(html_str)

Output:

<ul>
<li>first string</li>
<li>second string</li>
</ul>