Hide repeated elements of a list? [solved]

Question

Hi! I'm more or less new in openerp and I need to hide repeated elements of a list ma_ids[ ].
My code is the next:
for rt in r.repairs_ids:
m_ids += [rt.id]
for rtd in rt.repairs_ids:
md_ids += [rtd.id]
if (rtd.repair_id.rep_principal==True):
ma_ids += [rtd.id]
I need in the last line that rtd.id only writes in ma_ids if rep.principal ==True and I need a condition that if this item already exists that It didn't written it.
I try not to display repeated elements.
Sorry for my English, I'm Spanish

Borni DHIFI · Answer

Hi,

my_list=[]
#use append(x) to add element in list
my_list.append(1)
my_list.append(2)
#use count(x) to verify if an element exist in list
if my_list.count(1) >=1 :
print 'elemnt 1 exist'
else :
print 'elemnt 1 not exist'

Souldor · Answer

Hi! Thanks you very much! I have got it that way!
Regards.

nazarii · Answer

However there is more pythonic [1] way to get list with unique elements: Use python set [2] . In this case list(set([1,2,3,2,3,4])) will give you [1,2,3,4] .

[1] http://stackoverflow.com/questions/454002/what-does-pythonic-mean
[2] http://docs.python.org/2/library/sets.html

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