For Loops & While Loops in Python - Beginner Python Tutorial #5 (with Exercises)

Fifth video in my python tutorial series. In this video we cover the two different types of loops, for & while loops. Loops allow you to repeatedly execute blocks of code. For loops work great for a set number of iterations as well as iterating through lists. While loops work well with booleans (true or false).

If you have any questions, leave a comment down below!

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[KeithGalli]

Video Outline!
1:09 - Intro to For Loops
2:09 - Getting Iteration Number
4:10 - For Loops + Lists
5:31 - Calculating the average value in a list
10:21 - For Loops + Lists (index method)
12:33 - Using the Enumerate function
13:27 - Intro to While Loops
15:02 - Counting to 10 with While loop
18:18 - Break & Continue Statements
21:17 - Coding Bat Example Problems
24:53 - Coding Bat Example #2
30:33 - Video Recap

Feel free to watch on 1.25x or 1.5x speed to learn faster!

[cambridgebreaths]

man, honestly you are the coolest programmer. I will start enjoy watching your python and NN videos systematically.

[Yordani]

where were you 4 months ago when I statrted teaching myself python.. you are the man bro.. thanks

[meliyomollameles]

It's my first time here but i liked you the first minute the video started and the second you started talking. I don't think I am going anywhere.

[TheFreeballer]

you just helped me after being stuck for 2 hrs on this while loop.

[fosback]

I used to program in C/C++ using the Windows APi (Petzold book) and it was a complicated process!! Python is so much easier!! Thank you for these tutorials!!

[Pythagoras]

Thanks. I always learn something new watching your videos.

[sylvesterkanev]

Hey, Keith. Great video as always! Could you make another one regarding the nested for loops (for loops in for loops) and nested if statements (if statement in if statement)? Stay safe!

[martinopranjic]

i = 2
n = 1

while n <10:

print(i)

i *= i

this is cool

[Youuuuuu]

24:41 For whatever reason this works too...
def array123(nums):
if 1 and 2 and 3 in nums:
return True
else:
return False

[brianwake]

Keith your videos a very easy to understand, So helpful Thanks..

[christofweber]

Love your tutorials, easy to follow and good content for beginners. Short question on the Codebat "String_time": did you use the loop intentionally as one could have solved it by simply stating: return str*n
Thanks again for your videos!

[mirsadkuljici]

Can someone tell me why do we put a zero number when getting a total value for smth (7:19) .. maybe the question is absurd but I am a beginner. Thank you in advance!

You can also do this:

def string_times(str, n):
return (str * n)

[matthewwalsh]

Index of 25 positions with weights varying from about 180 to about 250, and you have what looks like an MIT flag on your wall. I would guess the Bruins.

[eikun]

For the 24:31 Exercise, I want to ask that why my code doesn't work? What's the difference?

def string_times(str, n):
for i in range(n):
return str*n

[BN-hynd]

For an absolute, absolute beginner, how do we arrange numbers in ascending or descending order/ Thank you

[babitakarki]

What is "i". Can it be something else instead of "i" when you type "for 'i' in range (10):" ?

[mikelim]

def string_times(str, n):
non = int(n)
return str*non

[reedshay]

hey just never say standard deeev. Other than that it was a great review thanks big fudge