Variables are pointers in Python

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Python's variables are not buckets that contain objects; they're pointers. Assignment statements don't copy: they point a variable to a value (and multiple variables can "point" to the same value).
Article at pym.dev/variables-are-pointers/
More #Python screencasts at pym.dev/screencasts/
00:00 Changing two lists at once
01:09 Variables are separate from objects
01:38 Assignment statements don't copy
02:04 Explicitly copying a list
02:30 Variables are like pointers, not buckets

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Опубликовано:

27 май 2024

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Комментарии : 8

@felixakwerh5189 25 дней назад

I really do hope your channel gets more subscribers and likes, you are good even for an experienced dev, your videos can still be a good reminder

@PythonMorsels 25 дней назад

Thanks Felix! 😊

@lawrencerobinson6543 25 дней назад

Thank you for these "morsels. These videos are very helpful for someone just beginning python study. Much success to you.

@PythonMorsels 25 дней назад

Thanks Lawrence! Much success to you in your Python learning journey as well!

@user-hk5zy3ug2q 25 дней назад

I really like the way you explain(I mean your speech).

@PythonMorsels 25 дней назад

I'm glad to hear it. Thank you!

@AbhijitGangoly 24 дня назад

What about: x: int = 5 y: int = x y = 2 print(x, y)

@PythonMorsels 23 дня назад

That y variable was pointed to 5 and then pointed to 2 instead. I'll publish a video on the 2 types of "change" in Python in a few weeks which should clarify that example further. In the meantime the article pym.dev/pointers may help.