Python 3 bytes() and bytearray() built-in functions TUTORIAL

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Tutorial on how to use the bytes() and bytearray() built-in function from the Python 3 Standard Library.

Timestamps:
0:00-0:25 Intro
0:26-0:50 Strings
0:51-1:11 Integers
1:12 Iterables

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Комментарии
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I think the reason x = bytearray([1, 2, 3]).append(4) gives you None is because the method change is 'in-class' hence the method returns None (-> None) and the variable x has now been assigned to the return value. Hope that helps.

sotirigeorgiou
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Remember:
- bytes() is a class.
- So an instance of the class must be created first
- Before it can be used

qwepoiqazplmzxcmnbqw
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In my 32-bit python 3.7 install, there's a file that contains the line:
data = to_bytes(data)
which causes the error: "unicode strings are not supported"


It seems like "to_bytes" is defined in serialutil.py, but why does it fail... and why doesn't it use SELF (data = self.to_bytes(data))?

bennguyen
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Hi brenden I understood this perfectly but I don’t really know what there used for I know what they are but I don’t really what there use is

n
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bytes() and bytearray() are classes, not functions. Also, I wrote in my new project: "print(bytes, bytearray)" -> written in command line: "<class 'bytes'> <class 'bytearray'>".

vladumnik
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How do you repeat the previous command line?
I am using arrow Up and Down, it does not work with me.

dinhomhm
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Hare Krishna hare Krishna Krishna Krishna hare hare Hare ram hare ram ram ram hare hare

mathsclassesbyomsir
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Brother, why didn't you answer me?

elarapy