Like what? Like "I have a binary file 4GiB in size and I'm just gonna spit it to stdout 1KiB at a time"? Not to mention that you don't do any decoding at all, so bytes objects are written to your screen raw, which isn't what you want, no matter the usecase. And not to mention "if it doesn't exist in the moment I check, I won't do anything, even though it might exist later when I'd actually try to read from it"?
Sorry, I know you're trying to salvage your post, but "like a pro" doesn't mean that. A pro should know the terrain of possibilities they might encounter, and this is something you won't encounter. Ever. If you do, I'll eat my hat. :-P
Now, if you actually need to process a binary file in chunks (not "pretend it's text and write it on the screen"), that's why block buffering is for. Learn to use it. docs.python.org/3/library/io.html#... You're in fact implementing another buffer on top of a builtin one, which really doesn't help your memory nor your speed.
Let me just tell you one more thing. I do this all the time around the Net (explainxkcd.com/wiki/index.php/SIW...). Usually people stick to their guns and refuse to admit they are wrong. DEV is the only community where people thank me for correcting them. Kudos for that! B-)
Nobody is perfect. We are all learning to be better :D Though the post itself is not good enough, at least we had a meaningful conversation here and I get a better solution.
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Like what? Like "I have a binary file 4GiB in size and I'm just gonna spit it to stdout 1KiB at a time"? Not to mention that you don't do any decoding at all, so bytes objects are written to your screen raw, which isn't what you want, no matter the usecase. And not to mention "if it doesn't exist in the moment I check, I won't do anything, even though it might exist later when I'd actually try to read from it"?
Sorry, I know you're trying to salvage your post, but "like a pro" doesn't mean that. A pro should know the terrain of possibilities they might encounter, and this is something you won't encounter. Ever. If you do, I'll eat my hat. :-P
Now, if you actually need to process a binary file in chunks (not "pretend it's text and write it on the screen"), that's why block buffering is for. Learn to use it. docs.python.org/3/library/io.html#... You're in fact implementing another buffer on top of a builtin one, which really doesn't help your memory nor your speed.
You are right. Thanks a lot for these helpful comments. It’s definitely a good lesson learnt
Let me just tell you one more thing. I do this all the time around the Net (explainxkcd.com/wiki/index.php/SIW...). Usually people stick to their guns and refuse to admit they are wrong. DEV is the only community where people thank me for correcting them. Kudos for that! B-)
Nobody is perfect. We are all learning to be better :D Though the post itself is not good enough, at least we had a meaningful conversation here and I get a better solution.