ctcore.py

   1 import sys
   2 DEBUG = 0
   3
   4 # PyQt3 and python 2.4 isn't currently available together on
   5 # Debian/testing we do therefore use the following quite ugly work
   6 # around. The module 'mysubprocess' is just a copy of the 'subprocess'
   7 # module from the Python 2.4 distribution.
   8 ver = sys.version_info
   9 if ver[0] < 2 or (ver[0] == 2 and ver[1] <= 3):
  10     import mysubprocess
  11     subprocess = mysubprocess
  12 else:
  13     import subprocess
  14
  15 class File:
  16     pass
  17
  18 class ProgramError(Exception):
  19     def __init__(self, program, err):
  20         Exception.__init__(self)
  21         self.program = program
  22         self.error = err
  23
  24 def runProgram(prog, input=None):
  25     debug('runProgram prog: ' + str(prog) + " input: " + str(input))
  26     if type(prog) is str:
  27         progStr = prog
  28     else:
  29         progStr = ' '.join(prog)
  30
  31     try:
  32         pop = subprocess.Popen(prog,
  33                                shell = type(prog) is str,
  34                                stderr=subprocess.STDOUT,
  35                                stdout=subprocess.PIPE,
  36                                stdin=subprocess.PIPE)
  37     except OSError, e:
  38         debug("strerror: " + e.strerror)
  39         raise ProgramError(progStr, e.strerror)
  40
  41     if input != None:
  42         pop.stdin.write(input)
  43     pop.stdin.close()
  44
  45     out = pop.stdout.read()
  46     code = pop.wait()
  47     if code != 0:
  48         debug("error output: " + out)
  49         raise ProgramError(progStr, out)
  50     debug("output: " + out.replace('\0', '\n'))
  51     return out
  52
  53 def debug(str):
  54     if DEBUG:
  55         print str