Printing from a list in Python?

Question

I am working with Python 3.2 and I have a list where the elements may vary in number depending on the original input. How can I print the elements from the list, but add 'and' before the last element when I don't know the exact number of elements in the list?

So [1, 2, 3, 4, 5] is 1, 2, 3, 4 and 5 ?

Jon Clements
– Jon Clements

2012-12-07 01:04:07 +00:00
Commented Dec 7, 2012 at 1:04 — Jon Clements
– Jon Clements, Commented Dec 7, 2012 at 1:04

Mark · Accepted Answer · 2012-12-07 02:10:45Z

3

For a list called floep

print('%s and %s' % (', '.join(floep[:-1]), floep[-1]))

As commented, a mapping might be needed for non-strings

print('%s and %s' % (', '.join(str(x) for x in floep[:-1]), floep[-1]))

edited Dec 7, 2012 at 2:10

answered Dec 7, 2012 at 0:57

Mark

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4 Comments

IamAlexAlright Over a year ago

I'm not familiar with python 3.2 so I could be totally off base though but will ''.join work on a list of ints? I have to map(str,list) before I can join in python2.7

James Waldby - jwpat7 Over a year ago

Saying map(lambda x: str(x), ... when you can say map(str, ... looks kind of silly.

Mark Over a year ago

Okay how's this? [str(x) for x in floep[:-1]] Prettier?

satoru Over a year ago

I would use a generator expression like this: ','.join(str(x) for x in floep[:-1]).

Cameron Sparr · Accepted Answer · 2012-12-07 01:07:03Z

2

for a list, a

a = map(str, a)
print(', '.join(a[:-1]) + ', and ' + a[-1])

edit: I believe IamAlexAlright was right about needing a map first

edited Dec 7, 2012 at 1:07

answered Dec 7, 2012 at 1:00

Cameron Sparr

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Comments

Bobb Dizzles · Accepted Answer · 2012-12-07 00:59:52Z

0

Try this:

for i in range(len(list)):
    if i=len(list)-2:
        print('and')
    print(len[i])

answered Dec 7, 2012 at 0:59

Bobb Dizzles

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