append, pop, sort, reverse

In [1]: l=['abc',123,'1.23','spam']

In [2]: l+[23]
Out[2]: ['abc', 123, '1.23', 'spam', 23]

In [3]: l*2
Out[3]: ['abc', 123, '1.23', 'spam', 'abc', 123, '1.23', 'spam']

In [4]: l
Out[4]: ['abc', 123, '1.23', 'spam']

In [5]: l.append('mem')

In [6]: l
Out[6]: ['abc', 123, '1.23', 'spam', 'mem']

In [7]: l.pop(2)
Out[7]: '1.23'

In [8]: l
Out[8]: ['abc', 123, 'spam', 'mem']
 
In [13]: m=['22','11','33']

In [14]: m
Out[14]: ['22', '11', '33']

In [15]: m.sort()

In [16]: m
Out[16]: ['11', '22', '33']

In [17]: m.reverse()

In [18]: m
Out[18]: ['33', '22', '11']