Prepend prefix to list elements with list comprehension

Question

Having a list like this:

[\'foo\',\'spam\',\'bar\']

is it possible, using list comprehension, to obtain this list as result?

[\         


        

Answer 1

In [67]: alist = ['foo','spam', 'bar']

In [70]: [prefix+elt for elt in alist for prefix in ('','ok.') ]
Out[70]: ['foo', 'ok.foo', 'spam', 'ok.spam', 'bar', 'ok.bar']