CODEWITHSUNDEEP
pythonlisttuples
Rogério Falangeta
Rogério Falangeta

Reputation: 69

How to remove the last comma from tuples?

How can I remove the comma from each tuple in the list.
I want to make a list of tuples from one list like this:

l = [1,2,3,5,4]

l1 = [ ]

l2 =  [ ]

for i in l:

    l1.append (i)
    t = tuple(l1)
    l2.append(t)
    l1 = []

print l2

Expected result:

[(1), (2), (3), (5), (4)]

Real result:

[(1,), (2,), (3,), (5,), (4,)]

Upvotes: 3

Views: 31382

Answers (2)

kta
kta

Reputation: 20110

Just retrieve the first element from the tuple and construct a new list.

arr = [x[0] for x in cursor]

Upvotes: 0

martineau
martineau

Reputation: 123453

If you only want the first element of each tuple in the list displayed (without a comma), you can always manually format the output by using something like this:

l = [1, 2, 3, 5, 4]
l1 = []
l2 = []
for i in l:
    l1.append(i)
    t = tuple(l1)
    l2.append(t)
    l1 = []

print '[' + ', '.join('({})'.format(t[0]) for t in l2) + ']'

Output:

[(1), (2), (3), (5), (4)]

BTW, you could also shorten the construction of l2 to just this:

l2 = [tuple([value]) for value in l]

Upvotes: 1

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