subprocess.call change color of shell

subprocess.call change color of shell - Printable Version

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subprocess.call change color of shell - Aquaplant - Jan-17-2017

Hello there,
I am using the package 'subprocess' to call some programs with parameter shell=True. Now I wish to change the color of the produced output. My system is Linux Ubuntu 15 with python3.5

Can someone help me?
My latest approach:

import subprocess

print("Some text in default color.")
subprocess.run(['echo -e "\033[32m"', 'ls -l', 'echo -e "\033[0m"'], shell=True)
print("Hopefully some text in default color, again.")

Produces:

Output:Some text in default color.
-e 
Hopefully some text in default color, again. <- this is now green

Process finished with exit code 0

I want something like this:

Output:Some text in default color.
#from now on in green
total 2088
-rw-rw-r-- 1 aq aq    1990 Sep 29 22:08 bibtexCheck.py
-rw-rw-r-- 1 aq aq 1936333 Jan 10 10:23 argparse
#from now on in default color
Hopefully some text in default color, again.

Thanks a lot,
Aquaplant

RE: subprocess.call change color of shell - wavic - Jan-17-2017

Hello!

See colorama if fits your needs

RE: subprocess.call change color of shell - buran - Jan-17-2017

https://pypi.python.org/pypi/colorama

https://pypi.python.org/pypi/termcolor

RE: subprocess.call change color of shell - wavic - Jan-17-2017

Pygments will do too

RE: subprocess.call change color of shell - Aquaplant - Jan-19-2017

Thanks for your suggestions. I will try them.

Sorrry, I didn't find out how you edit posts Huh

colorama seems to do the same: Print an ANSI escape character sequence and therefore throws errors:

import subprocess

print("Some text in default color.")
subprocess.run(["ls -l"], shell=True)
print("Hopefully some text in default color, again.")

Runs smoothly.
However this:

import subprocess
from colorama import Fore

print("Some text in default color.")
subprocess.run([Fore.GREEN, "ls -l", Fore.RESET], shell=True) #or subprocess.run(["%sls -l%s" % (Fore.GREEN,Fore.RESET)], shell=True) OR subprocess.run(["%s; " % Fore.GREEN, "ls -l;" "%s" % Fore.RESET], shell=True)
print("Hopefully some text in default color, again.")

Throws an error:

Output:Some text in default color.
Hopefully some text in default color, again.
ls -l: 1: ls -l: : not found

This sometimes works for the first rows (still terminating with errors):

subprocess.run(["%s; ls -l; %s" % (Fore.GREEN,Fore.RESET)], shell=True)

Output:/bin/sh: 1: : not found
/bin/sh: 1: : not found

Do I misuse the argument list or something? Could it be the encoding of the shell?

With termcolor it seems that you need to predefine the text's color (colored("some text")). I also want the output of my called command in green...

pygment seems not suitable for this, too. It uses HTML, HTML formatter and so on.

Aquaplant

RE: subprocess.call change color of shell - sparkz_alot - Jan-19-2017

I'm not near the linux machine at the moment, but tried on the windows 10:

#!/usr/bin/env python3
# -*- coding: utf-8 -*-

import subprocess
import colorama as cr

print("Some text in default color.")

cr.init()    # Needed for Windows, supposedly ignored by linux
print(cr.Fore.GREEN)

subprocess.run("dir", shell=True)

print(cr.Style.RESET_ALL)
print("Hopefully some text in default color, again.")

Output:

Output:C:\Python\scratch.py
Some text in default color.    # Default color

#    This is in Green
 Volume in drive C is Acer
 Volume Serial Number is 8CE3-7690

 Directory of C:\Python\

01/19/2017  09:54    <DIR>          .
01/19/2017  09:54    <DIR>          ..

01/19/2017  09:54               479 scratch.py
               1 File(s)         479 bytes
               2 Dir(s)  907,242,061,824 bytes free

Hopefully some text in default color, again.    #Back to default color

C:\Python\>

RE: subprocess.call change color of shell - wavic - Jan-19-2017

Hello! You have to call colorama.init().

from colorama import Fore, Style, init

init()

print('{red}This is colored text!{reset}'.format(red=Fore.RED, reset=Style.RESET_ALL)

RE: subprocess.call change color of shell - Aquaplant - Jan-20-2017

(Jan-19-2017, 03:07 PM)sparkz_alot Wrote: I'm not near the linux machine at the moment, but tried on the windows 10:

#!/usr/bin/env python3
# -*- coding: utf-8 -*-

import subprocess
import colorama as cr

print("Some text in default color.")

cr.init()    # Needed for Windows, supposedly ignored by linux
print(cr.Fore.GREEN)

subprocess.run("dir", shell=True)

print(cr.Style.RESET_ALL)
print("Hopefully some text in default color, again.")

Output:

Output:C:\Python\scratch.py
Some text in default color.    # Default color

#    This is in Green
 Volume in drive C is Acer
 Volume Serial Number is 8CE3-7690

 Directory of C:\Python\

01/19/2017  09:54    <DIR>          .
01/19/2017  09:54    <DIR>          ..

01/19/2017  09:54               479 scratch.py
               1 File(s)         479 bytes
               2 Dir(s)  907,242,061,824 bytes free

Hopefully some text in default color, again.    #Back to default color

C:\Python\>

Thanks a lot, this worked. I just wonder if this temporary change is global or limited to one / my console(s).

RE: subprocess.call change color of shell - sparkz_alot - Jan-20-2017

If I understand the question correctly, it only affects the terminal you used to run the script.