Debashish Saha wrote:
INPUT:
*for n in range(2, 1000):*
* for x in range(2, n):*
* if n % x == 0:*
Please don't add junk characters to your code. There is no need to add
asterisks to each line, we can recognise Python code when we see it. Your code
cannot run because of the junk added to the start and end of each line.
[...]
:QUESTION:
BUT I COULD NOT UNDERSTAND HOW THE COMMAND ELSE CAN WORK,THOUGH IT IS IN
THE OUTSIDE OF THE FOR LOOP IN WHICH IF COMMAND LIES.
Please do not SHOUT in ALL CAPITALS, it is considered rude.
In Python, "else" is not just for "if" statements:
if condition:
do_true_condition
else:
do_false_condition
Python also has "else" for for-loops and while-loops:
for x in sequence:
...
else:
# this part runs after the for loop is done
while condition:
...
else:
# this part runs after the while loop is done
In both cases, "break" inside the loop will skip past the "else" block without
executing it.
Try blocks also have an else:
try:
...
except TypeError:
# code that runs if TypeError occurs
except ValueError:
# code that runs if ValueError occurs
else:
# code that runs if no error occurs
finally:
# code that runs no matter what
See the tutorial:
http://docs.python.org/tutorial/controlflow.html
Start here:
http://docs.python.org/tutorial/index.html
(Although the site seems to be done just at the moment.)
--
Steven
_______________________________________________
Tutor maillist - Tutor@python.org
To unsubscribe or change subscription options:
http://mail.python.org/mailman/listinfo/tutor
