CODEWITHSUNDEEP
pythonpython-3.x
Jack
Jack

Reputation: 45

How to modify this code to be used for multiple lists?

I have this piece of code that converts two lists into vertical columns and prints them:

team1 = ['Vàlentine', 'Consus', 'Never Casual ', 'NucIear', 'Daltwon']
team2 = ['The Aviator', 'Iley', 'Nisquick', 'Dragoon', 'WAACK']

for t1, t2 in zip(team1, team2):
    print('%-20s %s' % (t1, t2))

How can this code be adjusted to add a third list say team3 = ['...']?

Output:

Vàlentine            The Aviator       <team3 here>
Consus               Iley
Never Casual         Nisquick
NucIear              Dragoon
Daltwon              WAACK

Using:

for t1, t2, t3 in zip(team1, team2, team3):
    print('%-20s %s' % str(t1, t2, t3))

Does not seem to work.

Upvotes: 1

Views: 59

Answers (3)

U13-Forward
U13-Forward

Reputation: 71610

Or try an one-liner:

print('\n'.join(map('%-20s %-20s %s'.__mod__, zip(team1, team2, team3))))

Also, unlike @SUNGJIN's answer, they're all processed and printed once, so you can easily save it into a variable:

mystring = '\n'.join(map('%-20s %-20s %s'.__mod__, zip(team1, team2, team3)))

Upvotes: 1

Karl Knechtel
Karl Knechtel

Reputation: 61617

Since you said "multiple" rather than "three" in the subject heading, let's get fully general about it.

To generalize the code, we would want to start with a list of lists:

columns = [
    ['Vàlentine', 'Consus', 'Never Casual ', 'NucIear', 'Daltwon'] # team 1
    ['The Aviator', 'Iley', 'Nisquick', 'Dragoon', 'WAACK'] # team 2
]

To get "rows" consisting of one element from each contained "column" list, we still use zip, but we need the * operator to pass an arbitrary number of parameters to it; and then since we're trying to be general about how many elements are in the column, we can't unpack it into separate variables. So:

for row in zip(*columns):

Then we need a formatting operation that can handle however many elements in a row. We can do this by formatting each element in its own 20-wide string (it is recommended to use new-style string formatting), and passing them all - again using the * operator - to print. The neatest way to do this is with a generator expression, thus:

    print(*(f'{name:<20}' for name in row))

Upvotes: 0

S. Kwak
S. Kwak

Reputation: 126

Like this

team1 = ['Vàlentine', 'Consus', 'Never Casual ', 'NucIear', 'Daltwon']
team2 = ['The Aviator', 'Iley', 'Nisquick', 'Dragoon', 'WAACK']
team3 = ['Ronaldo', 'Messi', 'Zidane', 'Me', 'Raul']
for t1, t2, t3 in zip(team1, team2, team3):
    print('%-20s %-20s %s' % (t1, t2, t3))

Upvotes: 5

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