python list to newline separated value

Question

Im trying to get data in pylon to use in jquery autocomplete, the librarary i'm using for autocomplete it requires this format

abc
pqr
xyz

and in python i have data in this format

[["abc"], ["pqr"],["xyz"]

How do i convert this list to the above one.

Edit:
I trying to use these for a autocompete and i'm using pylons, in which the query to the server return list in this format

    [["abc"], ["pqr"],["xyz"]

http://jquery.bassistance.de/autocomplete/demo/ this library except remote call in

abc 
pqr
xyz

i tried to use

"\n".join(item[0] for item in my_list)

but it returns data in firebug like this.

'asd\ndad\nweq'

i want it to be in

abc
pqr
xyz

any help would be appreciated as i'm a PHP developer this is first time i'm trying to do code in python.

thnaks

Answer 1

"\n".join(item[0] for item in my_list)

However, what's this got to do with JSON...?

Answer 2

Your code is doing what you want it to, but I imagine you're inspecting the results in the python REPL or ipython, and expecting to see new lines instead of '\n'.

In [1]: items = [["abc"], ["pqr"],["xyz"]]
In [2]: s = "\n".join(item[0] for item in items)
In [3]: s
Out[3]: 'abc\npqr\nxyz'
In [4]: print s
abc
pqr
xyz

Answer 3

I am not exactly sure what you want, but you may try:

nested_list = [ ["abc"], ["pqr"], ["xyz"] ]
data = "\n".join( (item[0] for item in nested_list) )

This will convert your list of lists into a string separated by newline characters.

Answer 4

Er I'm not sure what exactly you want, but if you need to print that you could do

for l in data:
    print l[0]

or if you want to make it a flat list, you could do something like

map(lambda x: x[0], a)

or if you even just want a single string with newlines, you could do something like

"\n".join(map(lambda x: x[0], a))

Dunno if that helped at all, but wish you luck

Answer 5

I think you want this, though it's hard to know based on your description:

  >>> l = [["abc"],["pqr"],["xyz"]]
  >>> "".join(map(lambda a:a[0] + "\n",l))
  'abc\npqr\nxyz\n'