sphinx-quickstart blank prompts in PowerShell

[LemonPi]

Subject: using sphinx-quickstart with PowerShell (v1.0) in Windows results in blank prompts

Problem

Procedure to reproduce the problem

run sphinx-quickstart

Expected results

Works fine in git-bash

Environment info

• OS: Windows 10
• Python version: 3.6.5
• Sphinx version: 1.7.6

[LemonPi]

This seems to be an unfortunate selection of font colour for the default PowerShell colouring scheme since I can select and copy the "blank" prompts...

[tk0miya]

Thank you for reporting.
Could you try this script in PowerShell console?

python -c 'from sphinx.util.console import purple; print(purple("Hello Sphinx"))'

At present, Sphinx uses purple for prompt of quickstart. If it is conflicted with PowerShell, we have to change it...

[LemonPi]

@tk0miya Hey thanks for the quick response. print parses the colouring as text and we get garbage (in standard white colour): �[35mHello Sphinx�[39;49;00m

ANSI colour escape sequences don't seem to be working (they just print the escape sequence) - I've tried some other colours manually.

Using colorama works though

[LemonPi]

OK yeah the previous garbage printing was because colorama wasn't initialized. Initializing with color_terminal() we can see that purple needs to be changed.

[tk0miya]

Thank you for confirmation. Sorry, I'd perfectly forgotten about colorama.
Okay, let's change the color!

[LemonPi]

36 (cyan) seems to be a decent colour for PowerShell and cmd.
It's not easy to select a colour!

[tk0miya]

Fixed by #5312. It makes the questions bold font.
Thank you for reporting.