[Tutor] Sorting a list in ascending order

[Ken G.]

In entering five random number, how can I best sort
it into ascending order, such as 0511414453? Using
Linux 2.7.6 in Ubuntu 14.04.4. Thanks.

number01 = "41"
number02 = "11"
number03 = "05"
number04 = "53"
number05 = "44"
line = number01 + number02 + number03 + number04 + number05
print
print line
line.sort()
print
print line


4111055344

Traceback (most recent call last):
   File "Mega_Millions_01_Tickets_Entry_TEST_TEST.py", line 11, in <module>
     print line.sort()

AttributeError: 'str' object has no attribute 'sort'