Jeff Forcier (bitprophet) posted:

Started playing around with this. One possible color scheme, using magenta hostnames, green tasks and blue running lines:

(You can ignore the actual text, it's just duplicated output from a real task run. No, the domains involved can't be accessed publicly :))

on 2009-11-12 at 02:10pm EST

Jeff Forcier (bitprophet) posted:

Another example, with additions:

• yellow for stderr
• red for abort messages (probably also warnings.)

on 2009-11-12 at 02:34pm EST

Jeff Forcier (bitprophet) posted:

Also, I've never said I don't use stupid crap as test messages :) no offense to anybody's mother.

on 2009-11-12 at 02:35pm EST

Nick Trew (vxnick) posted:

Consider adding env.always_use_bold (or similar).

on 2010-04-14 at 10:06am EDT

Kenneth Reitz (kennethreitz) posted:

I highly recommend colorama:

http://pypi.python.org/pypi/colorama

on 2010-10-11 at 10:49pm EDT

Rick Harding (mitechie) posted:

Kenneth Reitz wrote:

I highly recommend colorama:

http://pypi.python.org/pypi/colorama

+1 on colorama, very nice and easy to wrap so you make it optional. If colorama is installed you can output with colors, else plain.

on 2011-03-14 at 11:25am EDT

fabulous is a great library to work with colors in Python! I don't know colorama, but if we only need 8-bit colors, I can do a function to do it with just 20 lines of code (and will not depend on another library). But if we need more complete support, I think fabulous will be a great choice.

FWIW I am currently a huge proponent of 256-color terminals :) I will add fabulous to the list up top, thx!

my custom color function.

def colorize(msg, fg='green', bg='black', style='reset'):
    color_map = dict(black=0, red=1, green=2, yellow=3, blue=4, magenta=5, cyan=6, white=7)
    style_map = dict(reset=0, bold=1, underscore=4, blink=5, reverse=7, conceal=8, underline=4)
    return '\033[3%d;4%d;%dm%s\033[0m' % (color_map[fg], color_map[bg], style_map[style], msg)

554 includes a screenshot and possibly some code, to be considered alongside the above.

This afternoon, I had the idea to colorize the hostnames based on the hostname itself. Such that each hostname has a different color.

I _am_ going to fool around with this. Not sure where it goes.

I read through this issue and it seems that work on colorizing the output has a bit trailed off. Any particular reason for that? Has it somehow been abandoned?

I'll gladly give it a shot.

I've looked at some of the libraries mentioned above, and I am a bit sceptical. So far, fabulous is the one which I am least worried about. But I am not sure if it will work on windows (mainly because of the file named xterm256.(py|c)).

I also stumbled across urwid.

The reason for my scepticism is that all those libraries look to me like they're trying to do too much, if the only thing we need is colored text.

My go-to solution was a very simple snippet written by Nadia Alramli. Unfortunately, her blog is no longer online, but after a bit of googling, I came across her github page. It's very simple, and does what it should. Although I have never tested this on windows either.

There was also a really nice recipe on the ActiveState cookbook which I used from time to time. But I am unable to find this back. I will have to continue googling.

@exhuma Thanks for poking, notes greatly appreciated! I doubt Fab 1 will see heavy colorization (tho I think I merged a "show errors in red" thing recently? Memory hazy) but plan is to have it in Fab 2 from the get-go, where the output mechanisms should be written more intelligently. So this info is still useful.

No worries... and thanks for the update. I mostly forgot about this post... I do too much, and too many things in parallel :(

But, in the meantime, I was fiddling around with blessings as well. And it seems to "just work". Even 256 color support (even if undocumented). My fumblings are here: https://github.com/exhuma/blessings/compare/256-colour-support Output on the console looked fine.

Also, regarding my previous statement that all the mentioned libraries try to do too much, is _less_ true for blessings. It's quite minimalistic.

Yea blessings stood out as being pretty rad when I last looked at it. Will try and remember to look at it first for Fab 2 :)

FWIW blessings doesn't support Windows, colorama does (This is what we're using in pip for that). Or rather blessings needs colorama to get color on Windows.

For people like me running Windows and trying to get things like run("ls --color") to look good, I'd like to note that this works:

1. Install the colorama module (pip install colorama)
2. Add this code to fabfile.py:

try:
    import colorama
    colorama.init()
except ImportError:
    print "WARNING: Some tasks may be hard to read unless you install colorama."

Any updates on this? I am am looking for an option to colorize the remote commands. So far I see that ANSI escapes from remote commands are correctly displayed.

Still, I would like to be able to change the output of the prefix command and add ANSI escapes to it, maybe different color for local and remote, also different color for stderr (err) vs stdout (out).

I've added PR pyinvoke/invoke#663 to support this. Notice that this is primarily a PR to get the ball rolling again. It does not use any of the mentioned libraries because it is not yet clear to me how they should be integrated. See the notes on pyinvoke/invoke#663

I am absolutely willing to replace my own code with a third-party library.