関連ワード:  python get every first element of list    python get the first element of a list    python get all but first element of list    python get all first elements of list of tuples    python get the first item of a list    python get all first elements in list of lists    python get the first n elements of a list    python get the first 10 elements of a list    python find first element of list    python get first element of list of tuples  
結果 : python get every first element of list