How to erase/rewrite lines?

[pcroland]

I'm currently updating one of my tools and I have to rewrite lines a lot. With the built in print I could use:

def erase_line():
    print(f'\r{" " * (os.get_terminal_size().columns - 1)}', end='')

def truncate():
    return os.get_terminal_size().columns

def date_check(param):
    erase_line()
    print(f'\r{counter} | https://ncore.pro/t/{id} | {name}'[:truncate()], end="")
    url = f'https://ncore.pro/ajax.php?action=comments&id={param}'
    r = session.get(url).text
    if '<div class="hsz_jobb_felso_txt">' in r:
        page = soup(r, 'html.parser')
        c = page.select('.hsz_jobb_felso_date')[-1]
        date = re.search(r'\d+-\d+-\d+ \d+:\d+:\d+', soup.get_text(c))[0]
        comment_date = re.sub("[^0-9]", "", date).ljust(14, '0')
        if comment_date > compare_date:
            erase_line()
            print(f'\rhttps://ncore.pro/t/{id} | {date} | {name}'[:truncate()])

What should I use instead of \r and how should I truncate lines considering the tags that will be in the f-strings?

[pcroland]

I figured out that I can do this for line erasion:

from rich import print as rprint
def erase_line():
    print(f'\r{" " * (os.get_terminal_size().columns - 1)}', end='\r')

I tried using my truncate function with the length of the tags added to that but It messes up the output.

rprint(f'{counter} | https://ncore.pro/t/{id} | [bold #729c1f]{name}[/bold #729c1f]'[:truncate()+29], end="")

[willmcgugan]

See the docs on Live. It solves issues like hiding the cursor, wide characters, multiple lines, printing over the updating text.