Turn the Python 2D matrix/list into a table

问题

How can I turn this:

students = [("Abe", 200), ("Lindsay", 180), ("Rachel" , 215)]

into this:

Abe     200

Lindsay 180

Rachel  215

EDIT: This should be able to work for any size list.

回答1:

Use string formatting:

>>> students = [("Abe", 200), ("Lindsay", 180), ("Rachel" , 215)]
>>> for a, b in students:
...     print '{:<7s} {}'.format(a, b)
...
Abe     200
Lindsay 180
Rachel  215

回答2:

Use rjust and ljust:

for s in students:
    print s[0].ljust(8)+(str(s[1])).ljust(3)

Output:

 Abe     200
 Lindsay 180
 Rachel  215

回答3:

EDIT: someone changed a key detail of the question Aशwini चhaudhary gives an excellent answer. If you are not in a position of learning/using string.format right now then a more universal/algorithmic way of solving the problem is like this:

for (name, score) in students:
    print '%s%s%s\n'%(name,' '*(10-len(name)),score)

回答4:

For Python 3.6+ you can use f-string for a one-line version of Ashwini Chaudhary's answer:

>>> students = [("Abe", 200), ("Lindsay", 180), ("Rachel" , 215)]
>>> print('\n'.join((f'{a:<7s} {b}' for a, b in students)))
Abe     200
Lindsay 180
Rachel  215

If you don't know the length of the longest string in your list you can calculate it as below:

>>> width = max([len(s[0]) for s in students])
>>> print('\n'.join((f'{a:<{width}} {b}' for a, b in students)))
Abe     200
Lindsay 180
Rachel  215

来源：https://stackoverflow.com/questions/22670097/turn-the-python-2d-matrix-list-into-a-table

标签

python

list

matrix

tuples