I have a list like this
list=[[2,3],[3,4]]
I want to print each list in the list like this:
1: 2 3, 2: 3 4
So the first part is the position of the list in the list followed by the numbers in the list. So far i've tried a for loop and a single print line. The for loop works but prints every list in a new line. The other print statement looks like this but it doesn't work at all and i have no idea how to fix it.
print('{0:}:'.format(list[0]),' '.join([', '.join([str(e) for e in slist]) for slist in list]))
For this the list looked like this list = [[1,2,3],[2,3,4]]
so the first element in each list is the index for the list (starts at 1) I use Python3
l =[[2,3],[3,4]]
print(", ".join(["{}: {}".format(ind," ".join(map(str,x))) for ind, x in enumerate(l,1)]))
1: 2 3, 2: 3 4
enumerate(l,1)
keeps track of the index of the sublists, we pass 1
as the second parameter to start the indexing at 1
instead of `0.
" ".join(map(str,x)
maps all the ints to strings and we use str.format
to add :
before each index. ", ".join
separates each section with a comma.
you can use join()
and enumerate()
in a list comprrehension :
>>> l=[[2,3],[3,4]]
>>> ','.join(['{}:{}'.format(i,' '.join(str(t) for t in j)) for i,j in enumerate(l,1)])
'1:2 3,2:3 4'
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