Learn Python Programming - 21 - While Loops

Let's cover while loops in Python. They are useful when you don't know how long something is going to take to end. Whereas you should use for loops when you know when something should end. Ex: While you are not tired... Keep going. While the user wants to keep playing... Keep playing. For 10 times, do pushups. For 55 times, do jumping jacks. Hopefully, you get a little bit of an idea. ...
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Clever Programmer
Snapchat ► Rafeh1

[raghavanand]

Love this man!!!!
I just did something myself, and It felt so good
count = 100

while count > 0:
print (count)
count = count - 1
if count == 0:
print ("Boooyah!")

[talesofeer]

count = 0
while count > 0:
print(count)
count = count - 1
if count == 0:
print("BLAST

I think this is easier. I really love your lectures.

[soldiergaming]

I've watched all your python tutorials and haven't seen anyone who explains it better than you

[ezra]

count = 100 # this also works
while count>=0:
if count>0:
print(count)
else:
print("blast off")
count = count - 1

[cgd]

count = 100
while count > 0:
print(count)
count = count - 1
print(count)
if (count == 0):
print("Blast off!")





WOW I learned a lot from this simplke code! I forgot turn this sign around: from "<" to ">"

[nevon_jam]

I liked the way u related while loops with push-ups

[satheeshkumar]

count = 100
while count > 0:
print(count)
count = count - 1
if count<=0:
print("blast off")

[suryanshporwal]

you can also write like this
m = int(input("Enter a number\n"))
while 0 < m:
print(m)
m -= 1
print("yes i know while loop")

[jtak]

I just don't understand how someone could possibly enjoy doing I'm only doing this for a class that I have to take, and I hate my life hahahaha. But hey, to each their own. Anyways, thanks for the help man!! You post awesome content!

[sgtkeebler]

I am new to coding but a really good hint for new users like me. spacing after : counts. I ran a while loop that had a infinite loop because I didn't space things properly.

[lishengyang]

count = 0
count = 100
while count > 0:
print(count)
count = count - 1
if count == 0:
print('blast off')

[hhinfosystemspvt.ltd.]

while count>1:
print(count)
count=count-1
while count==1:
print('BLAST OFF')
break

[tauhidurrahman]

count = 100
while 0 < count <= 100:
print(count)
count = count - 1
if count == 0:
print("Blast off")

#I didn't make count <= 0, but still got blast off in the end. (I am using Pycharm)

[scott]

count = 100
while count > 0:
print(count)
count -= 1
if count == False:
print("Blast off!")

[Moises-Devzz]

count = 99
while 0 < count < 100:
print(count)
count -= 1

print('Blast off')

[muradelmissalati]

this is how I did mine and it worked

number = 100
while number != 0:
print(number)
number -= 1
if number == 0:
print("blast off")

[sdr]

count = 100
while count > 0:
count = count - 1
if count == 0:
print("Blast off!")
else:
print(count)

[francescowang]

Thanks for the explanation. What's the difference between the following two answers? The output is 0 to 9. The other one is 1 to 10. Why is that?

count = 0
while count < 10:
print(count)
count = count + 1

vs.

count = 0
while count < 10:
count = count + 1
print(count)

[Dezzymodel]

I ran the code :
count = 100
while count >= 0:
if count == 0:
print('Blast off!')
else:
print(count)

count = count - 1

But i get...
SyntaxError: multiple statements found while compiling a single statement

[palestinian]

my_energy = 100


while my_energy > 90:
print "Do Pushups"
my_energy -= 1