Python Generators

Python generators are lazy sequences and pausable functions.

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CHAPTERS
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0:00 Intro
0:16 Defining generators
1:55 Iterators and Range
3:49 File processing
4:55 Lazy sequences and Collatz
7:19 Generator comprehensions
8:05 Generator pipelines
9:49 Advanced usage, send/throw/close
13:05 Yield from
15:12 Thanks

[biffenb]

I love the relatively monotone presentation, which helps clarity, with only a few incredibly well placed jokes sprinkled here and there. Keep it up!

[lluchi]

No matter how experienced you are, in your videos there is always a new small detail you didn't know about. Love it!

[SwissTHXEB]

Mate, I have years of Python experience, yet everytime you release a video I am floored by some of the stuff you showcase and I feel like I'm learning about the language for the first time. Stellar job, as always, and your presentation style is excellent for the job.

[adsfwef]

Dude, you are a genius. I wonder why your vids aren't getting more views than those other millions of python hacks out there. Keep up the good work.

[ssholum]

Async (vs threading vs "other kinda-multitasking methods") video would be greatly appreciated. It's not the most useful stuff for your average script or simple program, so I rarely see good explanations of it for any language.

[dhravya]

Always struggled with generators. Thanks for the amazing explanation!

[LettuceAttack]

I swear every time I start watching a video on this channel I think “ah here is another thing I already know in python I probably won’t learn anything new this topic is pretty straight forward” and I end the video feeling like I never knew anything about it to begin with 😂😂 keep up the great work

[mabml]

Your async explanation would be much appreciated! :)

[GlutesEnjoyer]

“Even if a file is gigabytes large you’ll only need enough memory to handle a single line” great point!

[Fikerus]

I write things like "sum(x for x in range(10))" very often and I didn't know that was generator comprehension! I was thinking it was the same as writing "sum([x for x in range(10)])" (with brackets). Thanks a lot for your content!

[Gamecrazy]

Very insightful video! One other place I've seen generators used frequently is for API pagination. If, for instance, if you want to get all 100 records from an API, and the API limits your query to 10 records per call, you may not want to wait for all 10 calls. Instead you create a generator that calls the API only when you've completed working with the first page and are ready to move onto the second, etc.

[rituchandra]

"Where the only limit, is your imagination... and your download speed" - LOL I lost it here

[vincentperrollaz]

Outstanding video as always.
itertools might have deserved a mention since it is very useful with generators.
The jump from iterator to coroutine was a bit steep and I would personally love an async video

[ahmadhesham]

This is why I like your channel: Even when I think I know a topic well, I still expect to find something new in your videos, and I always do. Keep it up!

[MessLeadingProgramming]

Great video. It was eye opening for me when I learnt about generator comprehension. I realised that I was doing something very inefficient passing list comprehensions to sum and other functions.

Also worker example is amazing. Never used it this way.

[k_gold]

Thank you! By learning this I was able to create a toy version of the async coroutines, helped me a lot to grasp the concept of event loops

[lex_darlog_fun]

Just as I was about to suggest a video on async, James announced it himself. 👍🏻
Can't wait to see this convoluted topic explained in mCoding simple comprehensible manner.

[wojasek]

Thank you so much for this video, and all of others. I've started reading Fluent Python a couple months ago, but that was quite hard for me to go through it. And you on your channel describe those hard for me things and I finally get them somehow. Thought I was dumb, but all i needed was to find a great lecturer. Thank you so much!

[pankller]

Your videos are going into great depth mate! Im awaiting for that async vid of yours

[TylerLarson]

Yep, definitely interested in an async video. Especially interested in learning the "python native" async features and components so as to detangle it from all the third-party contributed stuff.