How to Append data to a combobox

I need to insert data to a combobox so i do an append as defined in this lines :

fd = open(files,'rb')
data=fd.readlines()

for i in data[]:
    item=i.strip()
    if item is not None:
       combobox.Append(item)
fd.close

Even data insert the selection still void please can you tell me how to set a selection a value from the items read. as like as selection con开发者_StackOverflow社区tain first element

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combobox.SetSelection(0)  # select first item

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I know this probably doesn't answer your question, but I recommend you close the file connection once you're done using it.

fd = open(files,'rb')
data=fd.readlines()

#Close the connection, you're done using it!
fd.close

#Now do what you want with data.
for i in data[]:
    item=i.strip()
    if item is not None:
       combobox.Append(item)