You must have noticed how quickly you are notified of errors in your program. Well, this doesn’t happen suddenly, but on the back end, a lot of storage processing is going on. Here comes the work of buffer. A buffer, in a lucid way, means a temporary storage location, and as the name suggests, unbuffered implies an absence of a buffer. With the help of this blog, you can understand when exactly we require/don’t need a buffer and the uses of PYTHON UNBUFFERED.
Python Unbuffered: Boost Your I/O Performance