How do I move the terminal cursor up-CodePudding

How do I make the cursor in the terminal go up using python so I can overwrite text printed e.g. 3 lines ago using \r?

I've tried to use: print("e.g.", end="\r")

But that overwrites only the latest line that was printed.

CodePudding user response：

You can make the cursor move vertically up by using \033[nA where n is the amount of lines you need to go up. This only works if your terminal(or emulator) supports ANSI escape sequences.

You can test this by,

echo -n -e '\033[2A'

Sample python code to visualize this

from time import sleep

print("asdfasdf")
sleep(1)
print("asdfasdf")
sleep(1)
print("asdfasdf")
sleep(1)
print('\033[3A')
print("hello wolrd")

CodePudding user response：

\r - is the beginning of the current line.

\033[F - ASCII command to move the cursor one line up.

Try this one, to understand the logic

print('line1\nline2\nline3\033[F*')