How to add scroll empty space in terminal?

Question

When you do find / in the native ubuntu terminal it prints output till the end of the screen. After this there is no empty scroll space available to scroll down. I temporarily solved this problem by clear function which adds additional scroll space. I do python programming in terminal and in it this doesn't work

for a in range(1000):
    print(a)

How I can hard code terminal to get some scroll empty space for both bash and python?

Answer 1

Let's say you want three extra lines below your prompt.

In Bash, run this, and from then on, you will have the three extra lines:

PS1+="\[\eD\eD\eD\e[3A\]"

To make it permanent, put it in your ~/.bashrc.

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The equivalent in Python uses sys.ps1:

import sys
sys.ps1 += '\x01\x1bD\x1bD\x1bD\x1b[3A\x02'

Or you could move the number of extra lines into a variable:

_ps1_extra_lines = 3
sys.ps1 += '\x01' + '\x1bD' * _ps1_extra_lines + '\x1b[A' * _ps1_extra_lines + '\x02'

To make it permanent, put it in a PYTHONSTARTUP file, which you may need to set up first.

Also note this is meant for the regular Python shell, and will not work in IPython, for example.

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For explanation and more details, see How to add blank lines above the bottom in terminal - Super User.