+) between the
two lists to be concatenated. The result is a single list whose length is the
total of the length of the two lists being combined, and which contains all of
the elements of the first list followed by all of the elements of the second
list.
>>> first = [7,9,'dog'] >>> second = ['cat',13,14,12] >>> first + second [7, 9, 'dog', 'cat', 13, 14, 12]Alternatively, you can combine two lists with the expand method (Section 4.4).
Note that list concatenation only works when you're combining two lists. To add a scalar to the end of a list, you can either surround the scalar with square brackets ([ ]), or invoke the append method (Section 4.4).