[BUG] Leftover newlines with progress after using remove_task.

[Baa14453]

• I've checked docs and closed issues for possible solutions.
• I can't find my issue in the FAQ.

Describe the bug

Hi,
I'm using asyncio where two independent functions might add a progress bar at any time and they will progress independently.
Because of this, I can't use Progress in a context manager such that it destroys the object when the progress is done, instead I am initialising the object and passing it through to both functions at their initialisation.

I didn't want any leftover progress bars to remain, so I delete them on completion by calling remove_task.
I then ran into this problem, while the task is removed, either the space it occupied remains, or add_task automatically attempts to compensate for another progress bar that it thinks exists above it, and adds a newline.
The result is the same, as time goes on the progress bars descend further and further down, I've recorded a gif to demonstrate:

I've also put together the minimal code to recreate this:

from rich.progress import Progress
import asyncio


async def meow(progress):
    with progress as progress_bar:    
        task = progress_bar.add_task("Meowing...", total = 10)
        meows = 0
        meow_total = 3
        meow_increase = 1
        while meows < meow_total:
            progress_bar.update(task, advance=meow_total / meow_increase)
            meows += meow_increase
            await asyncio.sleep(1)
        progress_bar.remove_task(task)

while True:
    progress = Progress(transient=True)
    asyncio.run(meow(progress))

Platform

Click to expand

What platform (Win/Linux/Mac) are you running on? What terminal software are you using?
Ubuntu 22.04, Gnome Terminal and the VSCodium / VSCode terminal.

If you're using Rich in a terminal:

╭───────────────────────── <class 'rich.console.Console'> ─────────────────────────╮
│ A high level console interface.                                                  │
│                                                                                  │
│ ╭──────────────────────────────────────────────────────────────────────────────╮ │
│ │ <console width=115 ColorSystem.TRUECOLOR>                                    │ │
│ ╰──────────────────────────────────────────────────────────────────────────────╯ │
│                                                                                  │
│     color_system = 'truecolor'                                                   │
│         encoding = 'utf-8'                                                       │
│             file = <_io.TextIOWrapper name='<stdout>' mode='w' encoding='utf-8'> │
│           height = 25                                                            │
│    is_alt_screen = False                                                         │
│ is_dumb_terminal = False                                                         │
│   is_interactive = True                                                          │
│       is_jupyter = False                                                         │
│      is_terminal = True                                                          │
│   legacy_windows = False                                                         │
│         no_color = False                                                         │
│          options = ConsoleOptions(                                               │
│                        size=ConsoleDimensions(width=115, height=25),             │
│                        legacy_windows=False,                                     │
│                        min_width=1,                                              │
│                        max_width=115,                                            │
│                        is_terminal=True,                                         │
│                        encoding='utf-8',                                         │
│                        max_height=25,                                            │
│                        justify=None,                                             │
│                        overflow=None,                                            │
│                        no_wrap=False,                                            │
│                        highlight=None,                                           │
│                        markup=None,                                              │
│                        height=None                                               │
│                    )                                                             │
│            quiet = False                                                         │
│           record = False                                                         │
│         safe_box = True                                                          │
│             size = ConsoleDimensions(width=115, height=25)                       │
│        soft_wrap = False                                                         │
│           stderr = False                                                         │
│            style = None                                                          │
│         tab_size = 8                                                             │
│            width = 115                                                           │
╰──────────────────────────────────────────────────────────────────────────────────╯
╭─── <class 'rich._windows.WindowsConsoleFeatures'> ────╮
│ Windows features available.                           │
│                                                       │
│ ╭───────────────────────────────────────────────────╮ │
│ │ WindowsConsoleFeatures(vt=False, truecolor=False) │ │
│ ╰───────────────────────────────────────────────────╯ │
│                                                       │
│ truecolor = False                                     │
│        vt = False                                     │
╰───────────────────────────────────────────────────────╯
╭────── Environment Variables ───────╮
│ {                                  │
│     'TERM': 'xterm-256color',      │
│     'COLORTERM': 'truecolor',      │
│     'CLICOLOR': None,              │
│     'NO_COLOR': None,              │
│     'TERM_PROGRAM': 'vscode',      │
│     'COLUMNS': None,               │
│     'LINES': None,                 │
│     'JUPYTER_COLUMNS': None,       │
│     'JUPYTER_LINES': None,         │
│     'JPY_PARENT_PID': None,        │
│     'VSCODE_VERBOSE_LOGGING': None │
│ }                                  │
╰────────────────────────────────────╯
platform="Linux"
rich==13.7.1

[github-actions]

Thank you for your issue. Give us a little time to review it.

PS. You might want to check the FAQ if you haven't done so already.

This is an automated reply, generated by FAQtory

[aidaco]

A simple way to avoid this would be to move the with progress as progress_bar contextmanager to outside of the main while True loop. This avoids invoking the context manager multiple times. Here is a modified version of your minimal code snippet that works as you describe on my machine (WSL2):

from rich.progress import Progress
import asyncio


async def meow(progress_bar):
    task = progress_bar.add_task("Meowing...", total=10)
    meows = 0
    meow_total = 3
    meow_increase = 1
    while meows < meow_total:
        progress_bar.update(task, advance=meow_total / meow_increase)
        meows += meow_increase
        await asyncio.sleep(1)
    progress_bar.remove_task(task)


progress = Progress(transient=True)
with progress as progress_bar:
    while True:
        asyncio.run(meow(progress_bar))