On Monday, February 3, 2014 6:50:31 PM UTC+2, Jean Dupont wrote: > I'm looking at the way to address tuples > > e.g. > tup2 = (1, 2, 3, 4, 5, 6, 7 ); > As I found out indices start with 0 in Python, so > tup2[0] gives me 1, the first element in the tuple as expected > tup2[1] gives me 2, the second element in the tuple as expected > now here comes what surprises me: > tup2[0:1] does not give me the expected (1,2) but (2,) > what is the reason for this and how then should one get the first and the > second element of a tuple? Or the 3rd until the 5th? > > thanks in advance and kind regards, > > jean
Hi from http://docs.python.org/3.3/library/stdtypes.html?highlight=tuple#tuple " The slice of s from i to j is defined as the sequence of items with index k such that i <= k < j. If i or j is greater than len(s), use len(s). If i is omitted or None, use 0. If j is omitted or None, use len(s). If i is greater than or equal to j, the slice is empty." so in above k < j but not equal so in your example slice will be of only one member. /Asaf -- https://mail.python.org/mailman/listinfo/python-list
