I DIDN'T KNOW You Could Do THIS With 'Yield' In Python

I didn't know that you could do this with yield in Python. In this video I will be showing you some extra functionality that you can use with the yield keyword when working with generators.

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[ProfRoxas]

I remember seeing this when I was learning about the yield keyword, but never actually used it.
When you mention you can use multiple statements in a function at 3:32, it makes sense if you think of the yield keyword as a pause where you return a value, but when calling again (with the next) you resume from that statement. You get a StopIteration when the generator reaches the end of that function, which means no more items

[ExDarkx]

Thanks for educating me. I rarely use yield and so this is even more fascinating for me

[DrDeuteron]

yield is also an assignment statement:

value = yield value

coroutines.

[vaha]

When one video is Enough.... Good explanation. Thanks.

[dcollett]

Your python videos are the best on the internet. Thanks so much!

[gardnmi]

I didn't know you couldn't pickle generators :(. Thought I was being clever. I discovered that you can wrap a generator with enumerate however to easily create an offset that you can save to use if you need to pick up where you left off though you still need to iterate to that point from the beginning. I was hoping a pickle would save the state.

[kvelez]

def random_nums():
for i in range(3):
yield i

def randoms():
for i in range(100, 110):
yield i

def generator():
yield from random_nums()
print("Next")
yield from randoms()

if __name__ == "__main__":
gen = generator()
print(next(gen))
print(next(gen))
print(next(gen))
print(next(gen))
print(next(gen))
print(next(gen))

[yksw]

This is pretty useful for games and for generating preemptively prime numbers and such, in particular because the big work is eventually done in the background (?). I will test that.

[DeybRuggs]

Thanks for the analysis! 🔍 Just a small off-topic question: 😅 I found these words 😅. (behave today finger ski upon boy assault summer exhaust beauty stereo over). How do I use this? 🤨

[prasangsinghal]

Nice explantion.
And about the IDE, is it PyCharm or Fleet?

[WilliansMatinez]

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[airatvaliullin]

This is not the main purpose of this `yield from <generator>` syntax. See the mcoding video for details

[HeyZReD]

Great video!
I have seen the "yield from" being used somewhere but never dug any deeper into how it works. 👍🏽👍🏽

[CultureofSpeech]

Bravo 🌞 Lit 🌟 Gratitude 🎉 for your satisfactory Work 🚀🌱

[maciejdudek]

what ide you are using? it looks like vscode but the buttons or run and debug are different

[maximpapusha]

Generator comprehantion ist quite useful especially if applying expensive functions 😁

[viethungoan]

Is your IDE VSCode ? It look different

[Riyaalita]

Explain the last part clearly please what is the need for next keyword there even without next keyword that generator can yield random numbers function but why it execute random number 100() function as a list what is the use of next here why the first random number function didn't execute after removing next (generator)

[Cpt.C]

Just like using list comprehensions instead of simple for loops, I like how u can just make only one line instead of several

[allo]

So does that mean you could yield from range(10)??? 🤯