Re: [Tutor] While loop counter
Thank you John & Allen, See the loops section of my tutorial for more about for and while loops. Yes, great tutorial, just getting it to sink in, now thats the problem :) ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] While loop counter
"David" <[EMAIL PROTECTED]> wrote Hi, I am trying to get a while loop that will execute 5 time then stop. Copngratulations, you have succeeded. Unfortunately nothing happens inside your loop. I suspect you actually want to execute some code 5 times? #counter = 0 #while counter < 5 : #counter = counter + 1 Yep, this would have done it. while True: mytime.tick() mytime.print_time() time.sleep(1) # Sleep for 1 second And this loop runs forever because you never break out of it. counter = 0 while counter < 5 : counter = counter + 1 If you did get out of the infinite loop above then this one does do it too. But all it does is increment the counter. If you want code to be executed it must also be inside the loop (ie inside the indented code section). So what I think you wanted would be: counter = 0 while counter < 5: mytime.tick() mytime.print_time() time.sleep(1) # Sleep for 1 second counter = counter + 1 But since its for a fixed number of iterations you are better off using a for loop: for counter in range(5) mytime.tick() mytime.print_time() time.sleep(1) # Sleep for 1 second Note we don't need to increment the counter in this version. See the loops section of my tutorial for more about for and while loops. HTH, -- Alan Gauld Author of the Learn to Program web site http://www.freenetpages.co.uk/hp/alan.gauld ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] While loop counter
On 08/07/2008, David <[EMAIL PROTECTED]> wrote: > Hi, I am trying to get a while loop that will execute 5 time then stop. Hi David, The standard pattern is like this: i = 0 while i < 5: # the stuff you want to do goes here i = i + 1 Note that if you know exactly how many times you will execute your loop, you should use a for loop instead: for i in range(5): # the stuff you want to do goes here HTH! -- John. ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
[Tutor] While loop counter
Hi, I am trying to get a while loop that will execute 5 time then stop.
#!/usr/bin/python
# Filename myfirstclass.py
#
# A Little digital clock
from time_class import Time
import sys
import time
mytime = Time()
print "Can you tell me the time (24h)?"
hour = input("Give the hour: ")
minute = input("Give the minutes: ")
second = input("Give the seconds: ")
mytime.set_time(hour, minute, second)
#counter = 0
#while counter < 5 :
#counter = counter + 1
while True:
mytime.tick()
mytime.print_time()
time.sleep(1) # Sleep for 1 second
counter = 0
while counter < 5 :
counter = counter + 1
Here is the class;
#!/usr/bin/python
# Filename: time_class.py
class Time:
def __init__(self):
self.__hour = 0
self.__minute = 0
self.__second = 0
def set_time(self, hour, minute, second):
self.set_hour(hour)
self.set_minute(minute)
self.set_second(second)
def set_hour(self, hour):
if 0 <= hour and hour < 24:
self.__hour = hour
def set_minute(self, minute):
if 0 <= minute and minute < 60:
self.__minute = minute
def set_second(self, second):
if 0 <= second and second < 60:
self.__second = second
def tick(self):
self.__second += 1
self.__minute += self.__second / 60
self.__hour += self.__minute / 60
self.__hour = self.__hour % 24
self.__minute = self.__minute % 60
self.__second = self.__second % 60
def print_time(self):
print '%02d:%02d:%02d' % (self.__hour, self.__minute, self.__second)
Thanks, very new to Python.
-david
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