Python array deleting items

Use a filter() call with None as the filter (tests for truth, so non-emptyness):

a = filter(None, a)

or a list comprehension:

a = [e for e in a if e]

If you need to explicitly allow other 'false' values and only want to filter out empty strings, use:

a = [e for e in a if e != '']

If those items are actually '', in other words, empty strings, then you can use the following:

a = [x for x in a if x]

Since an empty string evaluates to false when used in a truth testing statement.

try

for i in a:
   a.remove('')
   a.remove('')

i am also not sure why in first time it's not removing all but in second time sure it removes all the blank