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How can I put a list when printing in python?

For example, I have the following list:

mylist = ['foo', 'bar']

I want to print it filled with up to four indices with commas. I know that I can do the following to get it as a comma and space separated list:

', '.join(mylist)

But how can I put it in four indexes using "x", so the result is as follows:

foo, bar, x, x
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3 answers
In [1]: l = ['foo', 'bar']

In [2]: ', '.join(l + ['x'] * (4 - len(l)))
Out[2]: 'foo, bar, x, x'

['x'] * (4 - len(l))creates a list containing the correct number of entries 'x'required to be filled.

edit , , len(l) > 4. ['x'] * (4 - len(l)) , .

+10

itertools:

import itertools as it

l = ['foo', 'bar']

', '.join(it.islice(it.chain(l, it.repeat('x')), 4))
+2

Based on the recipe grouper() itertools:

>>> L = ['foo', 'bar']
>>> ', '.join(next(izip_longest(*[iter(L)]*4, fillvalue='x')))
'foo, bar, x, x'

It probably belongs to the "don't try it at home" category.

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