How does print() in Python work on the hardware level?

I'm seeking an in-depth explanation of the print() function's operation at the hardware level, specifically within the context of Python. When executing a simple Python command like print("Hello, World!"), what are the underlying processes that lead to the text being displayed on the screen?

I've conducted some research, but I found information only about the printf() function in C, or explanations focusing on internal function mechanics rather than actual text output. What are some insights into the step-by-step hardware interaction during the print() function execution?


  • It sends text to standard output which is one of two streams handled by the operating system (the other one, standard error, is for errors).

    The Python interpreter, which is written in C, is the layer responsible for handling this. You should look at how streams as implemented in C to know how it is handled in the hardware level.