No colors in Windows Terminal or cmd

[sztomi]

• I am on the latest Poetry version.
• I have searched the issues of this repo and believe that this is not a duplicate.
• If an exception occurs when executing a command, I executed it again in debug mode (-vvv option).

• OS version and name: Windows 10.0.18362.592
• Poetry version: 1.0.3
• Link of a Gist with the contents of your pyproject.toml file: n/a

Issue

This is #548 which was said to be fixed in "the latest beta" at the time, but now appears to be broken with no beta being more recent than the latest released version (1.0.3).

Long story short, there are no colors displayed on windows with any of the command shells I tried except in ConEmu. The default cmd.exe, powershell.exe and the new Windows Terminal don't display colors.

Some screenshots:

Powershell in Windows Terminal:

Cmd in Windows Terminal:

cmd.exe:

Cmd in Cmder (based on ConEmu) - This works!:

Powershell in Cmder (based on ConEmu):

This last one can probably be considered working as well, the green text is likely due to the cmder config.

[yelled1]

@sztomi Did you also noticed that in Cmder at least as soon as I hit $poetry shell that all colors disappear & emacs key binding on the shell is gone as well? Have you found a fix for that or should I put in as second bug list?
Plus, do you get different prompt? Mine is plain C:\Prj\MOA> instead of what I see with pyenv:

C:\Prj  
λ v_awscli.bat
C:\Users\ny11559\.pyenv\pyenv-win\versions\aws_cli\Scripts\activate
C:\Prj  
(aws_cli) λ 

I know that this is supposed to be depreciated with PYENV_VIRTUALENV_DISABLE_PROMPT=1, but I will likely keep it as is.
Thanks,

[ewen-lbh]

I tried with poetry --ansi and it worked for me. Seems like some stdout coloring library disables ANSI output when detecting PowerShell, and that --ansi forces it.

[naveen521kk]

Looks like using rich would solve this issue.

[myliyifei]

I can't display the ANSI color effect in Windows terminal either, I have to add the command line parameter --ansi every time I run it, can this option switch be added to the config without adding the parameter every time?

[ewen-lbh]

@myliyifei you could use an alias (sth. like alias poetry="poetry --ansi") as a workaround, but I don't know how to make aliases on windows though (or if it's even possible at all...)

[gaoming714]

@sztomi hi ,you can check the env, the poety need to get your "TERM"

echo $TERM

For TERM = cygwin , you need to add --ansi to focus color it.
For TERM = xterm, you are lucky.
I'm not clear the other values.

What is yours ?
here is my config.

[sztomi]

@gaoming714 TERM is not set in native windows terminals, that's a unix thing.

[naveen521kk]

I found the problem here. Poetry uses cleo which in turn uses clikit which in turn uses pastel. Where pastel doesn't support colours on Windows. The alternative is to use colorama, for colour.

[TBBle]

If it works with --ansi but not without, that's the same as #3354, and is a bug in clikit (sdispater/clikit#35).

As a workaround, you can set the ANSICON env-var to something non-empty to force ANSI support.

[myliyifei]

thanks, the workaround works! TBBle <[email protected]> 于2021年1月4日周一 下午6:54写道：

…

If it works with --ansi but not without, that's #3354 <#3354>, and is a bug in clikit. As a workaround, you can set the ANSICON env-var to something non-empty to force ANSI support. — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub <#1972 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ABS2XOJLVD5ILUFCGMEURELSYGM4TANCNFSM4KPVFAMQ> .

[dedale]

@myliyifei you could use an alias (sth. like alias poetry="poetry --ansi") as a workaround, but I don't know how to make aliases on windows though (or if it's even possible at all...)

If you have a dir that comes first in your PATH (before poetry), you can add a poetry.cmd in it with:

@call %USERPROFILE%\.poetry\bin\poetry.bat %* --ansi

[Secrus]

Could anyone verify if this is still an issue? cleo no longer uses clikit, so the issue might be resolved. I don't have a windows machine to test this.

[TBBle]

poetry --version with the latest Poetry master still does not use ANSI under Windows Terminal, but does with --ansi or when the ANSICON environment has been set.

Although cleo no longer uses clikit, I recall looking into it last year, and the relevant code was just copied from clikit into cleo, and the relevant bug is now python-poetry/cleo#104.

[chenyulue]

@sztomi hi ,you can check the env, the poety need to get your "TERM"

echo $TERM

For TERM = cygwin , you need to add --ansi to focus color it. For TERM = xterm, you are lucky. I'm not clear the other values.

What is yours ? here is my config.

Following your hint, I add an environment variable TERM and set it to xterm in windows, and then poetry command shows infomation with colors. No need poetry --ansi any more!

[starball5]

Related Stack Overflow question: Is there a way to activate colored output for Poetry in Windows Terminal?

[Yaekiou]

you could use an alias (sth. like alias poetry="poetry --ansi") as a workaround, but I don't know how to make aliases on windows though (or if it's even possible at all...)

input this in the terminal

$PROFILE
# will output path\to\profile.ps1

Open (create) the profile.ps1 in a text editor and then paste the following code into it

function ColorfulPoetry {
    & "poetry.exe" --ansi $args
}

Set-Alias poetry ColorfulPoetry

References:

&

Set-Alias

$args

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