Support option to disable color escapes in the log

[danny0838]

Flask always generates color escapes in the log for each HTTP request once color package is installed, but color escapes are undesired for systems that don't support it (such as Windows) and when the log is to be written to a file.

I think we can add an option to disable generating the color escapes.

[davidism]

This is a bug with how color is added, there's an open issue in Werkzeug (on mobile, can't find it right now). We won't be adding a flag to disable it.

[danny0838]

This is a bug with how color is added, there's an open issue in Werkzeug (on mobile, can't find it right now). We won't be adding a flag to disable it.

You probably mean pallets/werkzeug#1832. But I don't think the argument is valid: even if it can be fixed to work with windows console, there's still a need to disable color escapes when the log is to be written to a file.

[danny0838]

Is there further reason for rejecting the request? Or should I open another issue for it for the changed purpose?

[davidism]

I don't plan on adding a switch, please do not open a new issue for that.