[BUG] Colorization of STDERR is unexpectedly disabled when STDOUT is redirected

[huettenhain]

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

Describe the bug

Consider the following code:

from rich.console import Console
_print = Console(highlight=False, stderr=True, no_color=False).print
_print("[bright_red]hello[/]")

When running this on Windows 10, 22H2, colorization is disabled when the standard output is redirected.

Example:

Click to expand

Rich is running in the standard Windows CMD terminal.

$ python -m rich.diagnose
┌────────── <class 'rich.console.Console'> ───────────┐
│ A high level console interface.                     │
│                                                     │
│ ┌─────────────────────────────────────────────────┐ │
│ │ <console width=55 ColorSystem.WINDOWS>          │ │
│ └─────────────────────────────────────────────────┘ │
│                                                     │
│     color_system = 'windows'                        │
│         encoding = 'utf-8'                          │
│             file = <_io.TextIOWrapper               │
│                    name='<stdout>' mode='w'         │
│                    encoding='utf-8'>                │
│           height = 9                                │
│    is_alt_screen = False                            │
│ is_dumb_terminal = False                            │
│   is_interactive = True                             │
│       is_jupyter = False                            │
│      is_terminal = True                             │
│   legacy_windows = True                             │
│         no_color = False                            │
│          options = ConsoleOptions(                  │
│                        size=ConsoleDimensions(      │
│                            width=55,                │
│                            height=9                 │
│                        ),                           │
│                        legacy_windows=True,         │
│                        min_width=1,                 │
│                        max_width=55,                │
│                        is_terminal=True,            │
│                        encoding='utf-8',            │
│                        max_height=9,                │
│                        justify=None,                │
│                        overflow=None,               │
│                        no_wrap=False,               │
│                        highlight=None,              │
│                        markup=None,                 │
│                        height=None                  │
│                    )                                │
│            quiet = False                            │
│           record = False                            │
│         safe_box = True                             │
│             size = ConsoleDimensions(               │
│                        width=55,                    │
│                        height=9                     │
│                    )                                │
│        soft_wrap = False                            │
│           stderr = False                            │
│            style = None                             │
│         tab_size = 8                                │
│            width = 55                               │
└─────────────────────────────────────────────────────┘
┌── <class 'rich._windows.WindowsConsoleFeatures'> ───┐
│ Windows features available.                         │
│                                                     │
│ ┌─────────────────────────────────────────────────┐ │
│ │ WindowsConsoleFeatures(                         │ │
│ │ │   vt=False,                                   │ │
│ │ │   truecolor=False                             │ │
│ │ )                                               │ │
│ └─────────────────────────────────────────────────┘ │
│                                                     │
│ truecolor = False                                   │
│        vt = False                                   │
└─────────────────────────────────────────────────────┘
┌────── Environment Variables ───────┐
│ {                                  │
│     'TERM': None,                  │
│     'COLORTERM': None,             │
│     'CLICOLOR': None,              │
│     'NO_COLOR': None,              │
│     'TERM_PROGRAM': None,          │
│     'COLUMNS': None,               │
│     'LINES': None,                 │
│     'JUPYTER_COLUMNS': None,       │
│     'JUPYTER_LINES': None,         │
│     'JPY_PARENT_PID': None,        │
│     'VSCODE_VERBOSE_LOGGING': None │
│ }                                  │
└────────────────────────────────────┘
platform="Windows"

$ pip freeze | grep rich
rich==13.7.0

[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

[willmcgugan]

https://rich.readthedocs.io/en/latest/console.html#terminal-detection

[github-actions]

I hope we solved your problem.

If you like using Rich, you might also enjoy Textual

[huettenhain]

Apologies dear @willmcgugan, I forgot to mention that I did try setting force_terminal=True, but it does not alter the output.

[huettenhain]