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Python 101: Learn the 5 Must-Know Concepts
- April 22, 2024
- Posted by: MainInstructor
- Category: Python
Video Title: Python 101: Learn the 5 Must-Know Concepts
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1. Mutable and immutable. Is Python mutable if the parameter has a different name to the argument passed?
So you seem to be confused about the way immutable objects are stored in memory. 03:37 when you write y=x it doesn't make a copy or x.
Instead, both x and y point to the same tuple in memory. When you then assign something else to x, y still points to the same tuple and python's garbage collection will not free the memory.
In fact one of the reasons to have immutable object is precisely to avoid having to make physcal copies of it in memory.
Hope this helps
Myyyy boyyyyyy
I think its strange you cant change objects not that you can xd
This is esoteric intentionally ? nicely done – but most is unfamiliar to me.
Thank you
3:50
It's also an effect of the fact that the file is read from top to bottom. Line 2 get the evaluated before a line you were to swap lines 2 and 4 with 1 anothen X would equal (1, 2, 3).
e-mutable… rofl..
Good
4:49 Dang as a self developer (wannabe) this is actually rough. This means that all those comparisons i've made with list against tuples are actually opposite of what my first response is… daaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaang.
This was simply phenomenal. Brilliantly done.
@ 3:40 I cannot believe what I heard, it is so wrong!
The first code statement x=(1,2) is OK
She second code statement Y = X is OK
The discussion afterwards claims that Y receives a copy of the tuple (1,2). He clear says a Copy of the object. An assignment does NOT make a copy of the object. What a great way to create problems for the student down the road. Weather an is mutable or immutable, when an assignment is performed, a copy of that object in not made! I would be hard pressed to find a better way to mislead a beginning programming!
Is that really the definition of immutability in python? Surely being able to assign the same int variable twice is the definition of mutability in other languages. It seems that what is demonstrated is value assignment vs reference assignment.
Smart to have chair with headrest
'The first thing is different types of types'. Types of WHAT?
cool video)
Very helpful !
Thanks for this video and also to share your knowlege.
Interpreter Locks. Yup got to get up to date on that.
I am a intermediate python programmer who was making a project with lists and I had a function which was supposed to remove some items from a list and the mutable vs immutable problem came into play
Thank you for this video! Very clear overview of important concepts in Python
Great content as always Tim 🚀If anyone’s looking for more Python tutorials, we’ve released logging in Django and Django middleware to help the community too 💪
For the developers who has experience in lower level languages; basically, GIL = Mutex
I need a remedial version of this. One that defines the various terms that I’m not familiar with.
so….mutable objects are "passed by reference", whereas immutables are "passed by value" ?? seems like we're just renaming this concept
I am currently doing Python courses and i struggle a lot, i like that you distinguished parameters and arguments correctly and basically everything else what you've said is exactly the same things, that i got myself/what i've been told. But it is good to refresh upon those conceprts and methods to proceed with my further studying, because i when i am given a task almost everytime i find it hard to came up with the right solution and fail to get the right approach to it. Thank you for the video. Subscribed!
Thank you for your demonstration of mutable!
cool video)
Your discrimination is good but the display mode is not right on the black background some color is not seen
Wtf threads are kinda sus in python. The reason for it not improving efficiency must be good because that's just crazy to me.
How can a thread at a time be good?
edit: I searched it and multiprocessing still works with multiple cores so it's completely fine
cool video)
please make a video about gil pls
The GIL section needs update based on new feature in 3:12 (and more in 3.13)