about array

weskam

if there are same elements in the list, how can i take them away and make the list unique..... somethings like array_unique in PHP.... i have consult this web site, but it doesn't talk about it
http://www.java2s.com/Code/Python/List/CatalogList.htm

bvdet

Here's one way:

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 >>> some_list = [1,1,1,2,2,2,3,3,3]

>>> unique_list = []

>>> for item in some_list:

...     if item not in unique_list:

...         unique_list.append(item)

...         

>>> unique_list

[1, 2, 3]

>>>

If you are using Python 2.4 or higher:

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>>> set(some_list)

A set can contain only unique elements. A set can be converted back to a list.

kudos

I would do something like this:

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a = [1,1,1,1,2,3,3,3,3,4]

b = {}

for aa in a:

 b[aa] = 1

print b.keys()

Quote:

Originally Posted by weskam

if there are same elements in the list, how can i take them away and make the list unique..... somethings like array_unique in PHP.... i have consult this web site, but it doesn't talk about it
http://www.java2s.com/Code/Python/List/CatalogList.htm

weskam

Thanks very much, both of them work

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