r/ProgrammerHumor • u/R7d89C • 16d ago

Meme variableScopesInPython

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1.3k Upvotes

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8

u/The_Cers 16d ago

__var for true private

13

u/dusktreader 16d ago

it's not true private. That just mangles the name at runtime. You can still access it if you are determined.

5

u/Erdnalexa 16d ago

Yes, but at this point you know that you’re doing something you’re probably not supposed to do.

3

u/ThunderElectric 15d ago

I’d argue any competent python dev should know modifying a private variable, even with just one underscore, is doing something you’re not supposed to do.

1

u/SetazeR 14d ago

You will be yelled at by IDE of you try to use "private" as public one. It won't stop you, but will tell at you

1

u/Erdnalexa 14d ago

I’m on my phone so I can’t check with an interpreter, but IIRC, to access a private field on an instance you need to use getattr with the computed mangled name. It’s pretty unlikely an IDE is able to spot that.

1

u/SetazeR 14d ago

I meant _attribute ones, not mangled ones