Make it more probably to get colors in shell commands.

IPython/frontend/_process/pipedprocess.py

@@ -1,70 +1,74 b''
 # encoding: utf-8
 """
 Object for encapsulating process execution by using callbacks for stdout, 
 stderr and stdin.
 """
 __docformat__ = "restructuredtext en"
 
 #-------------------------------------------------------------------------------
 #  Copyright (C) 2008  The IPython Development Team
 #
 #  Distributed under the terms of the BSD License.  The full license is in
 #  the file COPYING, distributed as part of this software.
 #-------------------------------------------------------------------------------
 
 #-------------------------------------------------------------------------------
 # Imports
 #-------------------------------------------------------------------------------
 from killableprocess import Popen, PIPE
 from threading import Thread
 from time import sleep
+import os
 
 class PipedProcess(Thread):
     """ Class that encapsulates process execution by using callbacks for
         stdout, stderr and stdin, and providing a reliable way of
         killing it.
     """
 
     def __init__(self, command_string, out_callback, 
                         end_callback=None,):
         """ command_string: the command line executed to start the
         process. 
 
         out_callback: the python callable called on stdout/stderr.
 
         end_callback: an optional callable called when the process
         finishes.
 
         These callbacks are called from a different thread as the
         thread from which is started.
         """
         self.command_string = command_string
         self.out_callback = out_callback
         self.end_callback = end_callback
         Thread.__init__(self)
     
 
     def run(self):
         """ Start the process and hook up the callbacks.
         """
+        env = os.environ
+        env['TERM'] = 'xterm'
         process = Popen((self.command_string + ' 2>&1', ), shell=True,
+                                env=env,
                                 universal_newlines=True,
                                 stdout=PIPE, stdin=PIPE, )
         self.process = process
         while True:
             out_char = process.stdout.read(1)
             if out_char == '':
                 if process.poll() is not None:
                     # The process has finished
                     break
                 else:
                     # The process is not giving any interesting
                     # output. No use polling it immediatly.
                     sleep(0.1)
             else:
                 self.out_callback(out_char)
 
         if self.end_callback is not None:
             self.end_callback()