Colour of output text

Hi,

I would like to learn a way of changing the colour of a particular
part of the output text. I've tried the following:

import os
os.system("color 17")
print "This should be white on blue"

But that command changes the colour of ALL the text and the whole
background. What i'm trying to do is simple: Change a single part (A
letter, a word, a phrase) of the output text.

Is there a way of doing this?

Thanks in advance,

~~A.Rosslyn

Alex Rosslyn

On 2009-07-09, Alex Rosslyn <> wrote:
> I would like to learn a way of changing the colour of a particular
> part of the output text. I've tried the following

http://catb.org/esr/faqs/smart-questions.html

> import os
> os.system("color 17")
> print "This should be white on blue"

I assume that you are on Windows?

> But that command changes the colour of ALL the text and the whole
> background. What i'm trying to do is simple: Change a single part (A
> letter, a word, a phrase) of the output text.

If you are on Windows, then there is an API accessing the Windows Console:

http://msdn.microsoft.com/en-us/libr...10(VS.85).aspx

On Unix operating systems this would be done through the curses interface:

http://docs.python.org/library/curses.html

Tim Harig

Tim Harig <> wrote:
> On 2009-07-09, Alex Rosslyn <> wrote:
>> I would like to learn a way of changing the colour of a particular
>> part of the output text. I've tried the following

> On Unix operating systems this would be done through the curses interface:
>
> http://docs.python.org/library/curses.html

Or using ANSI colour codes:

colours = {
'none' : "",
'default' : "\033[0m",
'bold' : "\033[1m",
'underline' : "\033[4m",
'blink' : "\033[5m",
'reverse' : "\033[7m",
'concealed' : "\033[8m",

'black' : "\033[30m",
'red' : "\033[31m",
'green' : "\033[32m",
'yellow' : "\033[33m",
'blue' : "\033[34m",
'magenta' : "\033[35m",
'cyan' : "\033[36m",
'white' : "\033[37m",

'on_black' : "\033[40m",
'on_red' : "\033[41m",
'on_green' : "\033[42m",
'on_yellow' : "\033[43m",
'on_blue' : "\033[44m",
'on_magenta' : "\033[45m",
'on_cyan' : "\033[46m",
'on_white' : "\033[47m",

'beep' : "\007",

# non-standard attributes, supported by some terminals
'dark' : "\033[2m",
'italic' : "\033[3m",
'rapidblink' : "\033[6m",
'strikethrough': "\033[9m",
}

print colours['red'], 'this is red', colours['blue'], 'blue', colours['on_green'], 'and with a green background', colours['default']

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| __..--^^^--..__ garabik @ kassiopeia.juls.savba.sk |
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garabik-news-2005-05@kassiopeia.juls.savba.sk

On 2009-07-10, garabik-news-2005- <garabik-news-2005-> wrote:
> Tim Harig <> wrote:
>> On 2009-07-09, Alex Rosslyn <> wrote:
>>> I would like to learn a way of changing the colour of a particular
>>> part of the output text. I've tried the following
>> On Unix operating systems this would be done through the curses interface:
>> http://docs.python.org/library/curses.html
> Or using ANSI colour codes:

Which will only work for ANSI terminals.

Tim Harig

On Fri, Jul 10, 2009 at 2:23 AM,
<garabik-news-2005-> wrote:
> Tim Harig <> wrote:
>> On 2009-07-09, Alex Rosslyn <> wrote:
>>> I would like to learn a way of changing the colour of a particular
>>> part of the output text. I've tried the following
>
>> On Unix operating systems this would be done through the curses interface:
>>
>> http://docs.python.org/library/curses.html
>
> Or using ANSI colour codes:
>
> colours = {
<snip>
> Â* Â* Â* Â* Â* Â*'beep' Â* Â* Â* : Â* Â*"\007",

Sound is a color? Maybe if you have synaesthesia...

Cheers,
Chris
--
http://blog.rebertia.com

Chris Rebert

On Fri, 10 Jul 2009 09:23:54 +0000, garabik-news-2005-05 wrote:

>>> I would like to learn a way of changing the colour of a particular
>>> part of the output text. I've tried the following
>
>> On Unix operating systems this would be done through the curses interface:
>>
>> http://docs.python.org/library/curses.html
>
> Or using ANSI colour codes:
>
> colours = {
> 'none' : "",
> 'default' : "\033[0m",
> 'bold' : "\033[1m",

[snip]

> # non-standard attributes, supported by some terminals

This comment should have appeared immediately after "none"

Hard-coding control/escape sequences is just lame. Use the curses modules
to obtain the correct sequences for the terminal.

Nobody

Nobody wrote:
> On Fri, 10 Jul 2009 09:23:54 +0000, garabik-news-2005-05 wrote:
>
>
>>>> I would like to learn a way of changing the colour of a particular
>>>> part of the output text. I've tried the following
>>>>
>>> On Unix operating systems this would be done through the curses interface:
>>>
>>> http://docs.python.org/library/curses.html
>>>
>> Or using ANSI colour codes:
>>
>> colours = {
>> 'none' : "",
>> 'default' : "\033[0m",
>> 'bold' : "\033[1m",
>>
>
> [snip]
>
>
>> # non-standard attributes, supported by some terminals
>>
>
> This comment should have appeared immediately after "none"
>
> Hard-coding control/escape sequences is just lame. Use the curses modules
> to obtain the correct sequences for the terminal.
>
>
As the OP I'm really interested in doing so. I currently have all my
colors hard-coded.
Now It may be lame but as soon as I call curses.initscr(), it's just
messing up with my terminal, moreover I didn't figure out how to "print
'hello'" using curses color codes.
Anyone has an example ? I'm pretty sure it may fit in one line.

JM

Jean-Michel Pichavant

On Wed, 15 Jul 2009 17:03:30 +0200, Jean-Michel Pichavant wrote:

>> Hard-coding control/escape sequences is just lame. Use the curses modules
>> to obtain the correct sequences for the terminal.
>>
>>
> As the OP I'm really interested in doing so. I currently have all my
> colors hard-coded.
> Now It may be lame but as soon as I call curses.initscr(), it's just
> messing up with my terminal,

Use curses.setupterm() to locate and parse the terminfo/termcap entry
without entering "curses mode". Most curses functions won't work without
calling initscr(), but the terminfo functions will.

> moreover I didn't figure out how to "print
> 'hello'" using curses color codes.
> Anyone has an example ? I'm pretty sure it may fit in one line.

#!/usr/bin/env python
import curses
curses.setupterm()
setaf = curses.tigetstr('setaf')
if not setaf:
setaf = ''
print (curses.tparm(setaf,1) + "hello, " +
curses.tparm(setaf,2) + "world" +
curses.tparm(setaf,0))

Nobody

In article <mailman.3163.1247670223.8015.python->,
Jean-Michel Pichavant <> wrote:
>Nobody wrote:
>> On Fri, 10 Jul 2009 09:23:54 +0000, garabik-news-2005-05 wrote:
>>
>>
>>>>> I would like to learn a way of changing the colour of a particular
>>>>> part of the output text. I've tried the following
>>>>>
>>>> On Unix operating systems this would be done through the curses interface:
>>>>
>>>> http://docs.python.org/library/curses.html
>>>>
>>> Or using ANSI colour codes:
>>>
>>> colours = {
>>> 'none' : "",
>>> 'default' : "\033[0m",
>>> 'bold' : "\033[1m",
>>>
>>
>> [snip]
>>
>>
>>> # non-standard attributes, supported by some terminals
>>>
>>
>> This comment should have appeared immediately after "none"
>>
>> Hard-coding control/escape sequences is just lame. Use the curses modules
>> to obtain the correct sequences for the terminal.
>>
>>
>As the OP I'm really interested in doing so. I currently have all my
>colors hard-coded.
>Now It may be lame but as soon as I call curses.initscr(), it's just
>messing up with my terminal, moreover I didn't figure out how to "print
>'hello'" using curses color codes.
>Anyone has an example ? I'm pretty sure it may fit in one line.

In general initscr() ought to work. It fails if it has no/a wrong
idea of what your terminal is.

In the same shell as you run run your program type

set | grep -i term

Now some entry should show up, e.g.
TERM=xterm

infocmp $TERM

should fetch information about your terminal, from the same source
as curses does.

Possible problems are:
- your operating system/configurations lies to curses about the terminal
or your terminal is not specified at all
- curses has not been properly installed and cannot find the database

Groetjes Albert


>
>JM
>
>


--
--
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Economic growth -- being exponential -- ultimately falters.
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