jdhunter at ace.bsd.uchicago.edu
Fri Jun 20 15:07:01 CEST 2003
>>>>> "Lucas" == Lucas Raab <lvraab at earthlink.net> writes:
Lucas> I'm a newbie and I can't figure out how to loop from the
Lucas> end of the program back to the beginning. Any suggestions?
Welcome to python!
There are a number of ways to do it depending on your needs. If you
need to loop a fixed number of times, use a for loop
for i in range(10):
# do some more stuff, at the end, it loops back
If you need to loop back an arbitrary number of times until some
condition is met, use a while loop
print 'hi mom'
# do some more stuff
break # this ends the loop
# do some more stuff and then the program will loop back
You may also want to put the stuff you want to loop over in a function
print 'hello again'
#do some more stuff
Now you can call 'somestuff' whenever you need to, in a loop or in
response to some event, and you code will be rerun, eg,
for i in range(20):
Take a look at the python tutorial,
http://www.python.org/doc/current/tut/tut.html, particularly the
section on control flow:
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